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China supplier Gearbox Power Take off Spline Type for Crane Special Vehicle China Truck Shaft Pto Assembly with high quality

Product Description

 PTO (Power Take Off ) Gear Spline Type For Crane Special Vehicle  China Truck Shaft  PTO CHINAMFG 12,13,14,15,16,17,20,24,27,28,50,51,52,211, 212,521 Assembly

Power take-off SDQ27-21 No.: SDQ27-21
(Car power take-off) Main technical parameters: Current model: SDQ27/21PQ1, Manipulation mode: Pneumatic, Output shaft rotation: Contrary to engine rotation, total power take-off ratio: 1.845, Applicable models: EQ1208G, output torque (Nm): 350, equipped with gearbox: DC85JTZ 17G0Z56-571 17GOA3-(33.35.36) 17G571-N9-N9-N9-680, gearbox first gear ratio: 7.640

Car power take-off No.: SDQ12-83
(car power take-off)

Car power take-off No.: SDQ12-72
(car power take-off) power take-off total speed ratio: 1.199, output torque (N.m): 250, output shaft rotation: opposite to the engine rotation, operating mode: pneumatic, power take-off and gearbox meshing gear: helical gear

Car power take-off No.: SDQ12-68
(Car power take-off) main technical parameters: the current model SDQ12/68PQ1-A, control mode: pneumatic, output shaft rotation: contrary to the engine rotation, the total speed ratio of the power take-off: 1.19, applicable models: CA1092, output Torque (Nm): 350, equipped with gearbox: CA6T123, TS6-53 (direct gear), CATS6-62, gearbox first gear ratio: 6.515.

Power take-off SDQ212-70-1 No.: SDQ212-70-1
(Car power take-off) main technical parameters: current model: SDQ212/70PQ1-1, control mode: pneumatic, output shaft rotation: opposite to the engine rotation, the total speed ratio of the power take-off: 0.88, Applicable models: Fuller , Fast, output torque (Nm): 650, equipped with gearbox: 12JS160TA

Power take-off SDQ521 No.: SDQ521
(Auto power take-off) Main technical parameters: current model: SDQ521, control mode: pneumatic, output shaft rotation: opposite to the engine rotation, total speed ratio of power take-off: 0.782, Applicable models: Fuller, Fast , Output torque (Nm): 420, equipped with gearbox: RT-11609A, 11509C RTO-11609B, 11509F 8JS, 9JS

Power take-off SDQ212-70 No.: SDQ212-70
(Car power take-off) main technical parameters: current model: SDQ212/70PQ1, control mode: pneumatic, output shaft rotation: the same as the engine rotation, the total speed ratio of the power take-off: 0.83, applicable models: Xihu (West Lake) Dis.n, S Taier, Fast, output torque (Nm): 4   FAW TZ17-449 CA6T-138(FAW Eaton) 6-74 SDQ15/75 1.-Q17421(HangZhou) JC5-20T23(HangZhou) 17G0A8-LB27 17G0A88-QB80 17G1A8-20 17G0A5-EG05-B   SDQ23/30 1.15 250 Helical 24 Furika LG520Q3 LG525Q Mengwo170571-Q17571 MW525CL 17G0AB02 WLY520 525 SDQ23/32 1.24 170 Helical 31 FOTON Furika SDQ33/32 Helical 34 SYC07 170571-C64-E31121 TC5-30HKA20(Tangchi) TC5-30HFE9(Tangchi) YC5-30V06 LG535QHZJB1 1061 SDQ23/37 1.238 2-LD4-90651 17KW1-N9-N9-Q17421 2830.5   SDQ42/27 1.15 200 30 IV .ECO NAVECO LC6T35   SDQ50/35 1 300 Straight 22 Helical 26 JAC LC6T46(A2Q25) LC6T450MT(AZQ28) WLYZ6S46( ) 646 SDQ50/45 1.1 280 Straight 14 FOTON AUMARK WLY6S46 646 SDQ50/69 1.187 350 Helical 28 LC6T540 15CO7571   SDQ50/63 1.13 350 Helical 29 JAC LC5T97 LC5T30( 6teeth) 5T97 SDQ50/71 1.17 250 Helical 31 LC5T400M1(A2Q08) 5T35 SDQ50/74 1 200 Helical 31 FOTON Oling NISSAN Z.F5S400V   SDQ51/44 1.5 200 Straight 32 Helical 42 NISSAN MSB-5M(A2Q05) LC5T88(6 teeth) ISU .ZU QINGLING SDQ51/62 1.22 250 Helical 37 ISU .ZU QINGLING MSB-5M(A2Q05) LC5T88(6 teeth) ISU .ZU QINGLING SDQ51/63 1.03 250 Helical 38 ISU .ZU QINGLING DN3-70030-E0 6MT1420 DN3 SDQ51/65 1.26 350 Helical 32 ISU .ZU QINGLING MSB-5S/5M/5SM 5MT1280JD JC526T3D 1571 5T88 SDQ51/74 1.633 250 Helical 35 JMC small FOTON WLY5TS32C-58-32 Xihu (West Lake) Dis.feng WLY5TS32-31-32       Xihu (West Lake) Dis.feng FOTON JC528T8 1571 5T88 SDQ51/67 1.2 200 Helical 41 JMC ISU .ZU MRB6P( EURO3)   SDQ52/74 1.16 350 25 ISU .ZU QINGLING MRB6Q MLD6Q 5T ISU .ZU SDQ52/77 1.18 400 Helical 30 ISU .ZU QINGLING 8JS85E 17JK-G18569(JiangKai) 85E QD40A 1.01 350 Straight 18 Helical 19 FAST, Xihu (West Lake) Dis.feng RT-11609A RT-11509C   SDQ211/70-A Q.8 700 Xihu (West Lake) Dis.feng, FAW,Xihu (West Lake) Dis.n IV .ECO, Steyr, Auman, Northern Benz BEIBEN,JAC,SHCAMAN 17G0A9-22 9JS135T-B   SDQ211/70-1 1 400 9JS119T-B(170571-K14E3)   SDQ211/70-3 0.86 400 9JS119TA   SDQ211/70-4 1 500 RTO-11609B RT-11509F   SDQ211/70-5 0.94 650 12JS160TA   SDQ212/70-1 0.88 650 Xihu (West Lake) Dis.feng, Xihu (West Lake) Dis.n IV .ECO, Steyr, Auman, Northern Benz BEIBEN,JAC,SHCAMAN 12JD160TA 12JD180T   SDQ212/70-2 A5J38T   QC20A 1.61     FOTON

HWP type Power Take-Off

 

No PTO Model Ratio Torque Transmission Output Mode Control Position
1 HWP-X23/55CHQ 1.1206 300N.M LC6T450M1 Spline Pneumatic Side
2 HWP-X23/55TQ 1.1206 300N.M LC6T450M1 Flange Pneumatic Side
3 HWP-X30/71CHQ 1.5517 250N.M LC5T30 Spline Pneumatic Side
4 HWP-X30/71TQ 1.5517 260N.M LC5T30 Flange Pneumatic Side
5 HWP-X31/63CHQ 1.1099 300N.M LC6T540 Spline Pneumatic Side
6 HWP-X31/63TQ 1.1099 300N.M LC6T540 Flange Pneumatic Side
7 HWP-X31/74CHQ 1.5621 250N.M LC5T40 Spline Pneumatic Side
8 HWP-X31/74TQ 1.5621 250N.M LC5T40 Flange Pneumatic Side
9 HWP-I35/62CHS 1.2971 200N.M MSB-5M Spline Manual Side
10 HWP-I35/62TS 1.2971 200N.M MSB-5M Flange Manual Side
11 HWP-X35/65CHQ 1.6433 250N.M ML642A Spline Pneumatic Side
12 HWP-X35/65TQ 1.6433 250N.M ML642A Flange Pneumatic Side
13 HWP-X35/65CHQ-A 1.096 250N.M ML642A Spline Pneumatic Side
14 HWP-X35/65TQ-A 1.096 250N.M ML642A Flange Pneumatic Side
15

HWP-I35/74CHQ

1.8

250N.M

MSB-5M

Spline

Pneumatic

Side

1.536 LC5T28
1.82 LC5T88
16

HWP-I35/74TQ

1.8

250N.M

MSB-5M

Flange

Pneumatic

Side

1.536 LC5T88
1.82 LC5T28
17

HWP-I35/74CHS

1.8

250N.M

MSB-5M

Spline

Manual

Side

1.536 LC5T28
1.82 LC5T88
18

HWP-I35/74TS

1.8   MSB-5M

Flange

Manual

Side

1.536 LC5T28
1.82 LC5T88
Note

The above listed are the models and special specifications of common power take-off assemblies, or if you need to customize, please call for details.

 

Certifications

Packaging & Shipping

FAQ

1.Are you trading company or manufacturer ? 

We are Group Corporation manufacturer ,have Group Factories Contractor.

2 .Can I have samples of this type of product to test the quality?
Yes, you can buy any sample to test the quality,our MOQ is 1 unit.

3. What’s the delivery time and can you lower the price? 
It depends on your order.The delivery time is within 30 workdays after we received your prepayment. If you have placed an order of large quantities, then,of course, the price can be lowered.
 

4.Can you supply some quick-wear parts? 

Yes, we can supply the parts as your request,such as traction,traction pin,balance beam and plate spring,hanging accessories,turntable,all kinds of brake pads,brake pan, bearings,etc.
 

6.Do you have any used products for sale? 

We have products in stock for choices,the prices are favorable,we’ll show you our stock products if you need. 

7.What’s the payment terms?

TT 30% as deposit, balance before shipment by TT or at sight.

8. How to guarantee customers get the goods smoothly after they payment? 
Don’t worry,dear.We have joined the trade assurance,you can place the order by trade assurance,if we don’t delivery products, the deposit will be returned to you. 

9.How can you ensure the quality of the products? 

Don’t worry,dear.We have joined the trade assurance,if the products have quality problems when you received them,the payments can be refund to you.

 

Application: Motor, Machinery, Agricultural Machinery, Car, Aerial Platform Crane Truck, Tanker Trucks Pto, ..
Function: Distribution Power
Hardness: Hardened Tooth Surface
Jmc Series Power Take off: Sdq-Gt32/65 (Sdq- 51/65) Sdq-Gt51/67 Sdq-Gt32/65-a
Jmc Transmissions: 6mt1420/DN3-70030-E0/Kn3 Jc5t28/5t26.5/Mti280jd
Zftransmissions: Zf6s500/Zf6s600/Zf6s558 Zf6s508/Zf6s458 Zf5s400 Zf
Samples:
US$ 380/Piece
1 Piece(Min.Order)

|
Request Sample

Power take off
Customization:
Available

|

Customized Request

gearbox

Different Types of Gearboxes and Their Applications

There are several types of gearboxes, each designed for specific applications based on their characteristics and capabilities. Here are some common types and their applications:

  • Spur Gearbox: Spur gearboxes consist of parallel-shaft gears with straight teeth. They are simple and economical, suitable for low-speed and low-torque applications such as conveyors, machine tools, and clocks.
  • Helical Gearbox: Helical gearboxes have helical teeth that provide smoother and quieter operation compared to spur gears. They are used in various industries, including automotive, construction, and mining equipment.
  • Bevel Gearbox: Bevel gearboxes transmit power between non-parallel shafts. They are commonly used in vehicles, marine applications, and heavy machinery where changing the direction of motion is necessary.
  • Planetary Gearbox: Planetary gearboxes offer high torque density and compact size. They are used in robotics, automation, and precision machinery due to their efficiency and versatility.
  • Worm Gearbox: Worm gearboxes have a worm screw meshing with a gear wheel. They provide high reduction ratios and are used in applications like conveyor systems, elevators, and packaging equipment.
  • Cycloidal Gearbox: Cycloidal gearboxes use cams and pins for motion transmission, making them highly durable and shock-resistant. They find use in industrial machinery and robotics.
  • Spiral Bevel Gearbox: Spiral bevel gearboxes combine the advantages of bevel and helical gears, providing high efficiency and smooth operation. They are employed in vehicles, aircraft, and machine tools.

Each type of gearbox offers specific advantages suited to its application, enabling efficient power transmission and control in various industries.

China supplier Gearbox Power Take off Spline Type for Crane Special Vehicle China Truck Shaft Pto Assembly   with high quality China supplier Gearbox Power Take off Spline Type for Crane Special Vehicle China Truck Shaft Pto Assembly   with high quality
editor by CX 2023-10-09

China CNC Turning Machining Gear Shaft for Gear Box Hobbing Process supplier

Solution Description

 

HangZhou helix spur ring pinion sunshine equipment wheel
With carton box exterior, plastic baggage inside with carton board separate every other
45-60 days right after payment
send me drawings to validate if we can provide or not, thks…

As a membership of HangZhou large correct gears enterprises, HangZhou HangZhou Equipment Manufacturing Co., Ltd. is specialized in developing, production and marketing all kinds of tough & soft toothed gears, founded in 2004 and situated in Zhangzhuang industrial park. With a lot more than a hundred and fifty employees and masking an location in excess of 16000 sq. meters, the yearly generation of organization can get to in excess of 2 million parts gears, most utilized in automobile oil pump, motorcar, reducer, and equipment box. The company was awarded as ZheJiang Province Higher Technologies organization, and enterprise honoring contracts and standing by popularity. A Grade taxpaying organization and an organization of AAA credit rating quality. 
We have various take a look at equipment and outfitted in excess of 200 sets lathes, like all varieties of hobbing machines, grinding devices, shaping devices, shaving devices and so on. The gears with model “HangZhou” handed ISO9001: 2000 quality system in 2008. We have many renowned customers in domestic and overseas, which includes CZPT from Italy, CZPT Fuao company, HangZhou CZPT Intenal-Combustion Motor Fittings Co., Ltd., HangZhou Qingqi Group, ZHangZhoug Buyang Team and so on. 
HangZhou inherits the organization philosophy of “very good religion, enthusiasm, dream and motion”, fully utilizes sources superiority, constantly pioneers and invents, absorbs hi-tech talents, introduces sophisticated creation & inspection products and administration approaches and constantly improves quality of HangZhou regarding technology, production, good quality and product sales and many others., in addition, the business always remains main aggressive toughness in the marketplace. 

US $3-36
/ Piece
|
500 Pieces

(Min. Order)

###

Application: Motor, Machinery, Agricultural Machinery, Car
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Manufacturing Method: Rolling Gear
Toothed Portion Shape: Spur Gear
Material: 40cr

###

Customization:

###

Jinzhou helix spur ring pinion sun gear wheel
With carton box outside, plastic bags inside with carton board separate each other
45-60 days after payment
send me drawings to confirm if we can provide or not, thks…
US $3-36
/ Piece
|
500 Pieces

(Min. Order)

###

Application: Motor, Machinery, Agricultural Machinery, Car
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Manufacturing Method: Rolling Gear
Toothed Portion Shape: Spur Gear
Material: 40cr

###

Customization:

###

Jinzhou helix spur ring pinion sun gear wheel
With carton box outside, plastic bags inside with carton board separate each other
45-60 days after payment
send me drawings to confirm if we can provide or not, thks…

Types of Gearboxes Used in Wind Turbines

Many manufacturers of wind turbines have chosen different solutions for the drive train of the turbines. Most prefer gearboxes because of their durability. These have several design features that make them well suited to shocks, stresses and wear. Regardless of the type of gearbox used, continuous maintenance and monitoring can extend the lifespan of these machines. Performing these tasks regularly can help detect and resolve any problems before they become serious. Here are some of the problems associated with gearboxes.
gearbox

Coaxial helical gearbox

The R series helical inline gearbox is a high-quality speed reducer for heavy-duty industrial applications. These units are designed with increased power density in mind and are equipped with various cooling options. High-grade seals and lubricants help to increase efficiency and minimize thermal loading. They are ATEX-compliant. Their reversible modules are an excellent choice for high-speed applications, such as compressors, compressor blowers, and pumps.
The normal module set of helical gearbox is manufactured using the same tooth-cutting techniques as spur gears. This allows the production of higher-quality, more economical, and more compact helical gears. Although the performance of helical gears is lower than spur gears, they are durable and capable of transferring motion and power between two shafts. And because they are able to handle a much greater load, they are preferred for heavy-duty applications.
The main tooth form of a helical gearbox presents fixed velocity ratios, even if the center gap is not completely set. This requirement is sometimes referred to as the fundamental rule of gearing. A helical gearbox is similar to a set of paper spur gears, with the exception that the sections must stagger in opposite directions. There are two kinds of helical gears for parallel shafts: left-handed and right-handed.
The Industrial Gearbox market is segmented based on product type, application, and geography. The report analyzes the competitive scenario by segmenting the market by region, company, and type. Using this information, it estimates market size, revenue, and consumption. The report also features key information about COVID-19 and its impact on the overall industry. And it also provides a competitive landscape with industry-leading players.
Industrial gearboxes are integrated with devices and make automation processes more efficient and reliable. Increasing labor costs, shortage of skilled labor, and the ageing workforce are driving the demand for automation technologies. The industry requires newer and more advanced models and technologies to compete in the global market. You can use Coaxial helical gearbox in a variety of applications. Its benefits are endless. If you are looking for a reliable, high-performance industrial gearbox, CZPT can help you find it.
gearbox

Worm reduction gearbox

As a general rule, larger center distance worm reduction gearboxes are more efficient than smaller ones. Worm gearboxes with 2.6-in. center distances start to lose efficiency as their ratios increase. Larger center distances tend to have higher efficiency than smaller ones. However, this difference may not always be enough to justify the higher investment. Worm gear reducers typically cost less than equivalent helical units.
The use of aluminum for worm reduction gearboxes is a popular choice for those involved in the manufacturing of Packaging Equipment. In addition to being lightweight, aluminum worm reduction gearboxes have high strength and rigidity. Manufacturers recommend this choice because of its high rigidity and durability. While purchasing aluminum worm reduction gearboxes, keep in mind that they are more expensive than steel versions. However, they have a longer lifespan and are highly resistant to wear.
The worm’s helix angle is larger than a helical gear, which allows a much higher gear ratio. In addition, the worm’s body is usually longer in the axial direction than helical gears. Worm reduction gears are often left-handed, and British or Indian standards are usually followed. The worm wheel is made of hardened alloy steel PB2-C, while the gearbox case is made of hardened alloy steel FG 220 or FG 250res.
The worms in a sacrificial system are relatively safe from wear. Instead, the softer wheel is the cause of most wear and tear. The oil analysis report for a sacrificial system shows low iron levels and high copper concentrations. However, if a worm reduction gearbox has a bad reputation, you should consider purchasing a new one. If the worm gears are in good condition, the gearbox is still a viable option for a new or replacement vehicle.
The advantages of a worm reduction gearbox are numerous. The worm gearbox is widely used in industrial settings, where it provides torque and speed reduction to move products. Worm gearboxes are also commonly used in automatic security gates, which will not run in reverse. Most security gates use two separate worm drives to keep the gate in the closed position. There are also many other uses for worm reducers. You can learn more about the benefits of worm gearboxes by reading below.

Stainless steel gearbox

Stainless steel gearboxes offer a number of advantages over standard gearboxes. They match the existing stainless motor design and cost 50 percent more on average. They have stainless output shafts and housings as well as corrosion resistant hardware and a food grade lubricant. Stainless steel gearboxes feature IP 65 sealing, Viton shaft seals at the input and output shafts, and a Buna o-ring between the housings. Stainless steel gearboxes also eliminate flat surfaces and allow for a cylindrical design.
Stainless steel gearboxes are more durable than traditional cast iron or epoxy-painted gearboxes. These gearboxes can withstand repeated washdown operations without damage. They also do not collect particles or bacteria. And because stainless steel does not corrode, stainless steel gearboxes can withstand harsh environments, such as oily or greasy environments. Because stainless steel gearboxes are corrosion-resistant, they require little maintenance. They are also easier to clean and maintain, resulting in fewer replacements and a longer life span for your gearbox.
Stainless steel gearboxes are a great choice for food and other industries that require high hygiene standards. In addition to its durability, stainless steel gearboxes are ideal for applications in environments that require high levels of humidity and water. They are also life-lubricated, and they can be supplied with food-grade oils or water. The CZPT Gears stainless gearbox is a versatile option for a variety of applications.
Stainless steel gearboxes offer superior corrosion protection and can withstand harsh environments. The stainless steel cover, housing, and external hardware ensure superior corrosion protection. If you have questions about the varying benefits of stainless steel gearboxes, contact a CZPT Gear sales representative to learn more about your options. And if you are not sure which type is right for your needs, contact a CZPT Gear sales representative to find the perfect solution for your business.
gearbox

1 speed gearbox

Volkswagen Group Components manufactures the one speed gearbox. The gearbox has a high-performance electric drive motor that produces 310 Nm of torque over a wide speed range. Designed for maximum range, this gearbox uses a single gear for all driving situations. It is extremely quiet, too, and requires precision manufacturing. Volkswagen has also made it available in a reverse-gear configuration with power electronics. Volkswagen’s ID.3 EV’s e-drive motor is a perfect example of this.
The first part of the transmission corresponds to the even and odd gears, while the second part has the straighter gears. A single gear set can change between both modes. An intermediate gear set is also possible. A lastshelf gear can be formed by hydraulically betigte Lamellenkupplungen. Both types of gears can be exchanged between partial transmissions. The invention may furthermore include a transmission with the same gear ratios as the first part of the transmission.
Another variation of the one speed gearbox is the CVT. This type of gearbox has only one drive unit, which means it does not require a clutch or brake. Its power is derived from the torque generated by the Internal Combustion Engine at a particular speed. The engine cannot sustain such high torque levels above 5500 RPM, which will reduce the MPG. Also, raising the RPM will reduce the acceleration, and in severe cases may lead to an engine crash.
As the number of applications for a 1 speed gearbox increases, its design and functionality will continue to evolve. Bosch Rexroth has developed its eGFZ gearbox based on customer feedback. They are currently working on various pilot projects and hope to put it into production in the next few years. However, if you want to buy a 1 speed gearbox now, consider the benefits of a first-rate design.

China CNC Turning Machining Gear Shaft for Gear Box Hobbing Process     supplier China CNC Turning Machining Gear Shaft for Gear Box Hobbing Process     supplier
editor by czh 2023-01-01

China manufacturer wenzhou CZPT SLFA57 F series parallel shaft helical gearbox F series parallel shaft gearbox for conveyor near me supplier

Warranty: 1 year
Applicable Industries: Hotels, Garment Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Restaurant, Home Use, Retail, Food Shop, Printing Shops, Precision Concrete Mixer Truck Reducer Bearing,electricity Power Reducer Construction works , Energy & Mining, Other, Advertising Company
Weight (KG): 50
Customized support: OEM
Gearing Arrangement: Helical
Output Torque: 800~100000N.m
Input Speed: 1400rpm
Output Speed: 14-280rpm
Ratio: 7.5~23
Certification: ISO9001-2008
Mount Position: Foot Mounted
Bearing: LYC,SKF
Packaging Details: Wooden boxes , Cantons packed in 1 pallet

Product Overview SLF gearbox/reducer F series gear reducer is 1 kind of parallel shaft helical gear reducer , which consist of 2 or 3 stageshelical gears (relate to gear ratio) in the same case . The hard tooth surface gear use the high quality alloy steel ,theprocess of carburizing and quenching, grinding ,which give it follow characters :Stable transmission ,low noiseand temperature , MB UDL Variable Gearbox Speed Reducer Reduction Stepless Motor Variator high loading ,long working lift . Wide application ,specialize in Metallurgy ,Sewage treatment,Chemical Industry , Pharmacy ,Agriculture equipment and Oil industry FEATURES AT A GLANCE 1) Output speed: 0.6~1,571r/min 2) Output torque: up to 21700N.m 3) Motor power: 0.12~200kW 4) Mounted form: foot-mounted andflange-mounted mounting Right elevation Left elevation Front elevation PRODUCT SPECIFICATIONS Product NameSLK Series Rigid Tooth helical bevel reducerGear Material20CrMnTiCase MaterialHT250Shaft Material20CrMnTiGear ProcessingGrinding finish by HOFLER Grinding MachinesColorCustomizedNoise Test65~70dBEfficiency94%~98% (depends on the transmission stage)Lubricating oilShell Omala synthetic oil or mineral oil , or similar brandHeat treatmenttempering, cementiting, quenching, High quality wp series reducer small reduction gearbox for concrete mixer etc.Brand of bearingsC&U bearing, ZWZ,LYC, HRB, SKF,NSK and so onBrand of oil sealNAK or other brandTemp. rise (MAX)40 °Temp. rise (Oil)(MAX)50 °Vibration≤20µm SALES AND SERVICE NETWORK SIMILAR PRODUCTS Exhibition Company Profile Contact Us

Choosing a Gearbox For Your Application

The gearbox is an essential part of bicycles. It is used for several purposes, including speed and force. A gearbox is used to achieve one or both of these goals, but there is always a trade-off. Increasing speed increases wheel speed and forces on the wheels. Similarly, increasing pedal force increases the force on the wheels. This makes it easier for cyclists to accelerate their bicycles. However, this compromise makes the gearbox less efficient than an ideal one.
gearbox

Dimensions

Gearboxes come in different sizes, so the size of your unit depends on the number of stages. Using a chart to determine how many stages are required will help you determine the dimensions of your unit. The ratios of individual stages are normally greater at the top and get smaller as you get closer to the last reduction. This information is important when choosing the right gearbox for your application. However, the dimensions of your gearbox do not have to be exact. Some manufacturers have guides that outline the required dimensions.
The service factor of a gearbox is a combination of the required reliability, the actual service condition, and the load that the gearbox will endure. It can range from 1.0 to 1.4. If the service factor of a gearbox is 1.0, it means that the unit has just enough capacity to meet your needs, but any extra requirements could cause the unit to fail or overheat. However, service factors of 1.4 are generally sufficient for most industrial applications, since they indicate that a gearbox can withstand 1.4 times its application requirement.
Different sizes also have different shapes. Some types are concentric, while others are parallel or at a right angle. The fourth type of gearbox is called shaft mount and is used when mounting the gearbox by foot is impossible. We will discuss the different mounting positions later. In the meantime, keep these dimensions in mind when choosing a gearbox for your application. If you have space constraints, a concentric gearbox is usually your best option.

Construction

The design and construction of a gearbox entails the integration of various components into a single structure. The components of a gearbox must have sufficient rigidity and adequate vibration damping properties. The design guidelines note the approximate values for the components and recommend the production method. Empirical formulas were used to determine the dimensions of the various components. It was found that these methods can simplify the design process. These methods are also used to calculate the angular and axial displacements of the components of the gearbox.
In this project, we used a 3D modeling software called SOLIDWORKS to create a 3-D model of a gear reducer. We used this software to simulate the structure of the gearbox, and it has powerful design automation tools. Although the gear reducer and housing are separate parts, we model them as a single body. To save time, we also removed the auxiliary elements, such as oil inlets and oil level indicators, from the 3D model.
Our method is based on parameter-optimized deep neural networks (DBNs). This model has both supervised and unsupervised learning capabilities, allowing it to be self-adaptive. This method is superior to traditional methods, which have poor self-adaptive feature extraction and shallow network generalization. Our algorithm is able to recognize faults in different states of the gearbox using its vibration signal. We have tested our model on two gearboxes.
With the help of advanced material science technologies, we can now manufacture the housing for the gearbox using high-quality steel and aluminium alloys. In addition, advanced telematics systems have increased the response time of manufacturers. These technologies are expected to create tremendous opportunities in the coming years and fuel the growth of the gearbox housing market. There are many different ways to construct a gearbox, and these techniques are highly customizable. In this study, we will consider the design and construction of various gearbox types, as well as their components.
gearbox

Working

A gearbox is a mechanical device that transmits power from one gear to another. The different types of gears are called planetary gears and are used in a variety of applications. Depending on the type of gearbox, it may be concentric, parallel, or at a right angle. The fourth type of gearbox is a shaft mount. The shaft mount type is used in applications that cannot be mounted by foot. The various mounting positions will be discussed later.
Many design guidelines recommend a service factor of 1.0, which needs to be adjusted based on actual service conditions. This factor is the combined measure of external load, required reliability, and overall gearbox life. In general, published service factors are the minimum requirements for a particular application, but a higher value is necessary for severe loading. This calculation is also recommended for high-speed gearboxes. However, the service factor should not be a sole determining factor in the selection process.
The second gear of a pair of gears has more teeth than the first gear. It also turns slower, but with greater torque. The second gear always turns in the opposite direction. The animation demonstrates this change in direction. A gearbox can also have more than one pair of gears, and a first gear may be used for the reverse. When a gear is shifted from one position to another, the second gear is engaged and the first gear is engaged again.
Another term used to describe a gearbox is “gear box.” This term is an interchangeable term for different mechanical units containing gears. Gearboxes are commonly used to alter speed and torque in various applications. Hence, understanding the gearbox and its parts is essential to maintaining your car’s performance. If you want to extend the life of your vehicle, be sure to check the gearbox’s efficiency. The better its functioning, the less likely it is to fail.

Advantages

Automatic transmission boxes are almost identical to mechanical transmission boxes, but they also have an electronic component that determines the comfort of the driver. Automatic transmission boxes use special blocks to manage shifts effectively and take into account information from other systems, as well as the driver’s input. This ensures accuracy and positioning. The following are a few gearbox advantages:
A gearbox creates a small amount of drag when pedaling, but this drag is offset by the increased effort to climb. The external derailleur system is more efficient when adjusted for friction, but it does not create as little drag in dry conditions. The internal gearbox allows engineers to tune the shifting system to minimize braking issues, pedal kickback, and chain growth. As a result, an internal gearbox is a great choice for bikes with high-performance components.
Helical gearboxes offer some advantages, including a low noise level and lower vibration. They are also highly durable and reliable. They can be extended in modular fashion, which makes them more expensive. Gearboxes are best for applications involving heavy loads. Alternatively, you can opt for a gearbox with multiple teeth. A helical gearbox is more durable and robust, but it is also more expensive. However, the benefits far outweigh the disadvantages.
A gearbox with a manual transmission is often more energy-efficient than one with an automatic transmission. Moreover, these cars typically have lower fuel consumption and higher emissions than their automatic counterparts. In addition, the driver does not have to worry about the brakes wearing out quickly. Another advantage of a manual transmission is its affordability. A manual transmission is often available at a lower cost than its automatic counterpart, and repairs and interventions are easier and less costly. And if you have a mechanical problem with the gearbox, you can control the fuel consumption of your vehicle with appropriate driving habits.
gearbox

Application

While choosing a gearbox for a specific application, the customer should consider the load on the output shaft. High impact loads will wear out gear teeth and shaft bearings, requiring higher service factors. Other factors to consider are the size and style of the output shaft and the environment. Detailed information on these factors will help the customer choose the best gearbox. Several sizing programs are available to determine the most appropriate gearbox for a specific application.
The sizing of a gearbox depends on its input speed, torque, and the motor shaft diameter. The input speed must not exceed the required gearbox’s rating, as high speeds can cause premature seal wear. A low-backlash gearbox may be sufficient for a particular application. Using an output mechanism of the correct size may help increase the input speed. However, this is not recommended for all applications. To choose the right gearbox, check the manufacturer’s warranty and contact customer service representatives.
Different gearboxes have different strengths and weaknesses. A standard gearbox should be durable and flexible, but it must also be able to transfer torque efficiently. There are various types of gears, including open gearing, helical gears, and spur gears. Some of the types of gears can be used to power large industrial machines. For example, the most popular type of gearbox is the planetary drive gearbox. These are used in material handling equipment, conveyor systems, power plants, plastics, and mining. Gearboxes can be used for high-speed applications, such as conveyors, crushers, and moving monorail systems.
Service factors determine the life of a gearbox. Often, manufacturers recommend a service factor of 1.0. However, the actual value may be higher or lower than that. It is often useful to consider the service factor when choosing a gearbox for a particular application. A service factor of 1.4 means that the gearbox can handle 1.4 times the load required. For example, a 1,000-inch-pound gearbox would need a 1,400-inch-pound gearbox. Service factors can be adjusted to suit different applications and conditions.

China manufacturer wenzhou CZPT SLFA57 F series parallel shaft helical gearbox F series parallel shaft gearbox for conveyor  near me supplier China manufacturer wenzhou CZPT SLFA57 F series parallel shaft helical gearbox F series parallel shaft gearbox for conveyor  near me supplier

China factory K Series Transmission Gear Box Small Hollow Shaft Gearbox near me supplier

Solution Description

                                                               

Kind: K collection Helical Bevel Gear Motors
Product: K37-K187
Brand title: YBANG
Shade: Blue/Gray or on request
Substance: HT250
Enter electrical power: .12-200kw
Output torque: 10-61900N.m
Output velocity: .08-261rpm
Bearing: C&U Bearing,NSK,SKF or on request
Seal: SKF,CTY,CFW or on ask for
Origin: ZHangZhoug, China
Guarantee: 1 yr

Functions of merchandise

1. Highly Common Modular Created: The products are very easily connected with and pushed by various types of motors and various  input electricity. The very same sort geared motor can be tailored to optioned powers of motors. It is for that reason simple to recognize different remedy for diverse specifications.

two. Ratio: Featured numerous closely divided ratios and vast variety of them. Very big closing ratios can be acquired through blended unites to reach extremely lower output speeds.

three. Mounting Arrangement: No stringent limitation to the mounting arrangement.

4. Large Energy, Compact Dimension: Housings are manufactured of substantial toughness solid iron. Gears and shaft gears are completed with gas carburizing procedure and specific grounding to sequentially get higher loading potential of for each certain quantity.

five. Extended Support Lifestyle: Under the situation of precisely deciding on type dimension and the normal servicing and use, principal parts (assume individuals simply-disabled components) can previous as prolonged as up to far more than twenty five,000 hours. Very easily-disabled parts consist of lubricating oil, oil seals, and bearings.

six. Minimal Noise: All important factors are concluded by exactly machining, precise assembly, and last but not least analyzed, and as a result, relatively reduced sounds is achieved.

7. High Performance: The efficiency of gear unit can reach 95%, The effectiveness of worm gear unit can get to 89%.

8. Big radial loading potential.

9. Axial load capacity of up to 5% of radial load.

                                                              
            

                                                              

                                                              

                                           
(1) With superb high quality and Realistic price

(2) Assure to delivery on time

(3) Secure, trustworthy, economical and durable

(4) Steady transmission, silent operation

(5) Substantial warmth-radiating effectiveness, large carrying capability

(6) Every solution should be examined before sending

 

Gearboxes and reducers are enclosed mechanical reduction devices frequently utilised in present-day automatic manage methods to command torque from your motors and achieve other motion-relevant duties. A gearbox allows you to boost torque whilst reducing the pace of your key mover output shaft. The output shaft of the gearbox rotates at a slower speed than the enter shaft. This results in a mechanical benefit, increasing torque. Conversely, your gearbox can be set in reverse, offering elevated shaft pace and diminished torque. Two common transmission configurations are straight and right angle. On the internet versions normally consist of helical or spur gears, planetary gears, cycloidal mechanisms, or harmonic turbines. Correct-angle patterns usually use worm or helical equipment drives, even so, hybrid drives are also offered. Gearmotors combine an enclosed equipment set with an electric powered motor to improve torque and overall performance although reducing velocity. Although further friction, inertia, or sharp load adjustments for short-term operation of the actuator can cause issues, they give a prolonged functioning daily life by stopping overloading. Numerous equipment ratios, speeds and torques are obtainable to help enhance performance and lessen possible troubles. Look through to locate the correct gearbox and reducer for your automation venture.
Equipment reducers, also named reducers, come in numerous transmission types and are designed to multiply torque and lessen input speed to a wanted output speed. The primary reward of inline gearboxes is their capability to preserve management in apps involving higher rotational speeds. Their effectiveness and ability to provide higher input speeds with minimum backlash make inline reducer gearboxes best for a broad selection of movement manage purposes

China factory K Series Transmission Gear Box Small Hollow Shaft Gearbox     near me supplier

China supplier Reducer Gearbox Kr60016 Output Spline Shaft near me supplier

Product Description

Reducer Gearbox KR60016 Output Spline Shaft

The  Gearboxes are made for connecting equipment pumps to farm tractor electrical power just take offs (PTO).Output velocity of power get offs is 540rpm which can be in contrast with the correct operating speeds of hydraulic pumps.Diverse enter managing speeds can also be appropriate,supplied that the PTO gearbox output speed does not CZPT 3000 rpm.

Gears
Manufactured in Steel UNI eighteen PCR M03.Stub teeth promise extremely higher resistance and operate very quietly.

Shafts
Made in metal UNI 16 CRN4.They are coupled with splined gears and are created to stand the torque values said in the catalogue.

Lubrication
SAE 90 gear oil must be put in the pto gearbox prior to use, alter the oil after the very first sixty-eighty hrs and then each and every 12 months or 1500 hrs which ever falls first.

Upkeep
Remember to check out the oil stage via the particular oil window every single fifty hours.Operating temperatures need to not CZPT a hundred and twenty degrees celcius beneath continuos obligation cycle.

Packaging & Shipping

Plastic bag packing for 1 piece / two items in 1 exporting carton / 100 cartons place on a pallet

FAQ

 

one.Q:Is your company a trading business or a manufacturer?

A:Our company is a trading organization also a manufacturer, we have our very own manufacturing facility to create gearbox, pump support..And so forth

Also we distribute equipment pumps, tractor equipment,dump truck pump  from picked top quality suppliers to meet customers’ variable demand from customers.

 

2.Q:What about the high quality management and guarantee ?

A:”High quality first, Clients foremost”.Each piece of products is cheeked and examined strictly 1 by 1 prior to packing and delivery.

Our items have 1 yr guarantee, technical help is endless from us.

 

3.Q:Can you offer samples for examining and testing?

A:Indeed,we supply cost-free samples for examining the create top quality and real functionality of our goods,the freight need to have to be coverd by consumer.

 

four.Q:How can I get to your firm?

A:Our company tackle is No.888 Huaxu Highway,Xihu (West Lake) Dis. district,ZheJiang ,China

It is about 30 minutes by vehicle from ZheJiang Xihu (West Lake) Dis.ao airport or ZheJiang Xihu (West Lake) Dis.ao Railway station.

We are skilled transmission sellers and offer you a vast assortment of transmissions, an essential part of a lot of travel programs. Gearboxes can be used to minimize or enhance pace, increase torque, reverse or alter the direction of a push shaft. Gearboxes are also recognized as gear drives, speed reducers, equipment motors, speed reducers and gear reducers.
Gearboxes go by numerous diverse names, including equipment drives, speed reducers, equipment reducers, velocity reducers, and gear motors. All conditions are utilized interchangeably when referring to inline gear reducers. Our inventory involves a vast assortment of equipment reducers for higher pace, large precision apps with enter speeds up to 4000 RPM.

China supplier Reducer Gearbox Kr60016 Output Spline Shaft     near me supplier

China supplier Smr Shaft Mounting Reducer Speed Reducer Gear Gearbox The Cheapest Price in China near me manufacturer

Merchandise Description

SMR Reducer Specification
 
 
1 Output Hub

Standard or alternative hubs with metric bores are available to suit international standard shaft diameters.

2 Precision High Quality Gearing 

Computer Designed Helical Gears, Strong Alloy  Materials  for  High  Load  Capacity, Case  Carburized  for  long  life,  Ground Profile(some intermediate pinions are shaved) Crown tooth Profile, In Conformance  with  ISO  13281997,  98% Efficiency  for  Per  Stage,  Smooth  Quiet Operation with Several Teeth in Mesh.

3 Maximum Capacity Housing Design
 
Close  Grain  Cast  Iron  Construction,  Excellent  Vibration  Dampening  &  Shock Resistance Features, Precision Bored and Dowelled to Ensure Accurate In-Line Assembly.

4 Strong Alloy Steel Shafts

Strong Alloy Steel, Hardened, Ground on Journals, Gear Seatings and Extensions, for
Maximum Load and Maximum Torsional Loads. Generous Size Shaft
Keys for Shock Loading and Conform to ISO Standards.

5 Additional Case Lugs Except H and J Gear Case

Eliminates the Need for Critical Tightening of Torque Arm Bolts. Controls Position of
Standard Torque Arm Mounting within Recommended limits.

6 BackStops

Alternative Parts, Antirun Back Device, AreAvailable on all 13:1 and 20:1 Ratio Units and do not recommend for 5:1 Units.

7 Bearings and Oilseals

Bearings are Adequately Proportioned and Conform to ISO Dimension Plan, Readily
Available WorldWide. Oilseals are Double Lipped Garter Spring Type, Ensuring Effective Oil Sealing.

8 Rubberised End Caps

Self Sealing Intermediate Cover Plates, to Standard ISO Housing Dimensions.

9 Torque Arm Assembly

For Easy Adjustment of the Belt.

Dimensions : SMR B C D E F G H 

RATIO : 5:1  13:1  20:1 

Contact Me

Welcome to get in touch with William for much more details!

 

Design B13/B20 C13/C20 D13/D20 E13/C20 F13/E20 G13/F20 H13/G20 J13/J20
Output(RPM) 10-115 10-a hundred and ten ten-110 ten-one zero five 10-a hundred and five ten-a hundred 10-a hundred ten-one hundred
Power Ranking(KW) .29-3.11 .forty nine-4.sixty two .eighty two-7.81 1.25-eleven.fifty five 1.97-17.01 3.11-27.09 4.9-forty.seven 7.8-60.5
Permissible torque(Nm) 277 468 783 1194 1881 2970 4680 7449

 

Model B5 C5 D5 E5 F5 G5 H5 J5
Output(RPM) one hundred-400 one hundred-400 a hundred-400 a hundred-400 one hundred-four hundred one hundred-four hundred one hundred-four hundred a hundred-400
Energy Score(KW) two.68-7.fourteen four.2-9.66 6.sixty two-15.sixty five 10.29-24.57 15.twelve-35.91 25.2-fifty nine.nine 36.2-eighty one.9 sixty two.2-134.two
Permissible torque(Nm) 256 401 632 983 1444 2407 3457 5940

 

 

Dimension(mm) SMR Dimensions
SMR-B SMR-C SMR-D SMR-E SMR-F SMR-G SMR-H SMR-J
Standard measurement of shaft 30 forty 50 55 sixty five 75 85 one hundred
Different dimension of shaft 40 50 55 sixty five 75 85 a hundred a hundred and twenty
Enter shaft keyway 6×3.5×50 6×3.5×59 8x4x63 8x4x70 10x5x70 12x5x90 14×5.5×100 16x6x100

 

 

Firm Profile

l  The greatest company and exporter of worm gear reducers in Asia.

 

l  Established in 1976, we remodeled from a county owned manufacturing facility to private 1 in 1996. HangZhou SINO-DEUTSCH Power TRANSMISSION Gear CO.,LTD is our new title because 2001.

 

l  We are the first manufacturer of reducers and gearboxes in China who was given export license since 12 months 1993.

 

l  “Fixedstar” manufacturer gearboxes and reducers are the 1st proprietor of CHINA Leading Model and Most CZPT Trade Mark for reducers.

    Very first to achieve ISO9001 and CE Certificate amongst all manufacturers of gearboxes in China.

   
As a professional company of worm gearbox and worm gear reducers in China, we mainly produce reduction gearbox,aluminum scenario worm gearboxes,arc gear cylindrical worm gearboxes, worm gear reducers, in line helical gearboxes, and cyclo drive reducers, and so on. These products attribute rational structure, steady overall performance, and reliable good quality, and so on. They are broadly utilized in electricity, mining, metallurgy, creating content, chemical, food, printing, ceramic, paper-creating, tobacco, and other industries.

 

 

 

 

We have 600 staff in our manufacturing unit, which covers 70,000 sq. meters in HangZhou. We have been creating 2,500 models of reducers everyday considering that 2012. We are proudly exporting 70% of our merchandise to far more than 40 international locations all above the phrase. Our buyers appear from Italy, Germany, Usa, Canada, Spain, Uk, Mexico, Brazil, Argentina, Turkey, Singapore and other main industrial countries in the planet. 30% of them are OEM made for direct makers of other items. 

 

 

 

 

 

 

 

We warmly welcome customers from other areas of the world to check out us. Looking at is believing. We are quite assured that after checking out our facility, you will have self confidence on our items. We have the latest automated equipments and skilled workers to guarantee the stable quality and large output. We have the most innovative technological and engineering crew to support most demanding requirement on normal and OEM items.

 

 

 

Looking ahead to conference you in HangZhou, China.

Planetary gearboxes are used in a variety of instances exactly where substantial effectiveness and high reduction ratio are necessary in a small area. Featuring higher precision and higher torque-to-volume ratio, it is perfect for torque improve, deceleration, precise positioning and control of regenerative equipment. To make certain that the selected planetary gearbox is the ideal match for your software, it is crucial to consider parameters this sort of as torque, backlash and equipment ratios when picking a planetary gearbox.
Gearboxes and reducers are enclosed mechanical reduction devices typically utilized in today’s automatic handle techniques to command torque from your motors and attain other movement-relevant responsibilities. A gearbox enables you to boost torque while decreasing the velocity of your key mover output shaft. The output shaft of the gearbox rotates at a slower speed than the enter shaft. This results in a mechanical benefit, increasing torque. Conversely, your gearbox can be set in reverse, delivering improved shaft pace and diminished torque. Two frequent transmission configurations are straight and appropriate angle. Online types usually consist of helical or spur gears, planetary gears, cycloidal mechanisms, or harmonic turbines. Proper-angle styles typically use worm or helical equipment drives, nonetheless, hybrid drives are also obtainable. Gearmotors blend an enclosed equipment established with an electric powered motor to boost torque and performance even though decreasing pace. Although additional friction, inertia, or sharp load adjustments for quick-phrase operation of the actuator can result in troubles, they supply a prolonged running existence by preventing overloading. A variety of gear ratios, speeds and torques are available to help enhance performance and minimize potential issues. Search to discover the correct gearbox and reducer for your automation venture.

China supplier Smr Shaft Mounting Reducer Speed Reducer Gear Gearbox The Cheapest Price in China     near me manufacturer

China supplier Good Quality Right Angle Nmrv Worm Gear Speed Reducer / Solid Shaft Gearbox with Hot selling

Product Description

Great Good quality Correct Angle Nmrv Worm Equipment Pace Reducer / Strong Shaft Gearbox

Specification


 

Thorough Images


Other Associated Items

 

Business Overview

  

 

About Greensky Mechanical

  • Historical past: Greensky Mechanical is a motor model of CZPT electrical power organization Limited. The brand CZPT Mechanical was established in 2012 with investing in a 15 year old motor manufacturing facility in ZHangZhoug Province. CZPT Energy brought new administration principle to the new joint business and increase the good quality of the motors as CZPT Power usually offers secure and great top quality and support to the modern society. The Positioning of the brand is medium & large top quality amount. Our buyers are largely in Europe. We help save value by growing the effectiveness of production and shipping and delivery. 
  • Market place: Greensky has consumers in 30 distinct nations. Germany, Austria, Japan, United states of america and Center-East are our primary industry .
  • Mission:  “When and without end” is our objective to provide customers in the planet. As soon as we do company with client, we will do business permanently.

 

Greensky Mechanical Goods consist of:

one. AC (equipment) motor
2. DC & BLDC (gear) motor
3. Worm gearbox
four. Helical gearbox
five. Coreless motor
six. External rotor motor
7. Motor controller
8. Custom-made motor

The rewards of working with us are:

1.  Convenience. We can provide all sorts of motor & gearbox by manufacturing and out sourcing.
2.  High High quality. All items are <1% defect rate with ≥ 1 12 months ensure.
three.  Low Expense. We significantly minimize price on substance, processing, assembling, packing and shipping and delivery.
4.  Flexible services. MOQ beneath 10pcs & customise offered & urgent get answer.
5.  Fast reaction. Our basic principle is response in fifteen minutes and provide solution in 24 hrs.

We hope you get pleasure from cooperating with us.

If you have projects that need to have motors and gear containers, you should freely make contact with me. 

Proper angle gearboxes (worm and planetary gears) are strong and can be utilised for 90° turns. An inline reducer (parallel shaft and planetary) is an perfect matching motor with high input speeds, or when equipment motor performance is important. Get in touch with our technological revenue staff to assist establish which transmission solution is best for you.
Gearboxes and reducers are enclosed mechanical reduction devices frequently utilised in modern automated control techniques to command torque from your motors and accomplish other movement-associated duties. A gearbox enables you to improve torque even though reducing the speed of your key mover output shaft. The output shaft of the gearbox rotates at a slower speed than the enter shaft. This results in a mechanical edge, escalating torque. Conversely, your gearbox can be set in reverse, offering improved shaft velocity and lowered torque. Two common transmission configurations are straight and proper angle. Online models normally consist of helical or spur gears, planetary gears, cycloidal mechanisms, or harmonic generators. Correct-angle styles normally use worm or helical gear drives, nevertheless, hybrid drives are also accessible. Gearmotors combine an enclosed gear established with an electric motor to enhance torque and overall performance whilst minimizing speed. Whilst additional friction, inertia, or sharp load alterations for quick-term procedure of the actuator can result in issues, they give a long working life by preventing overloading. Numerous equipment ratios, speeds and torques are available to support improve efficiency and decrease possible problems. Search to discover the appropriate gearbox and reducer for your automation venture.

China supplier Good Quality Right Angle Nmrv Worm Gear Speed Reducer / Solid Shaft Gearbox     with Hot selling