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China best Speed Reducer S57, Sf57, Saf57 Series Gearbox for Construction Machinery Spare Parts worm gearbox assembly

Product Description

Detailed Photos


Features of S series reducer

The same model can be equipped with motors of various powers. It is easy to realize the combination and connection between various models.
The transmission efficiency is high, and the single reducer efficiency is up to 96%. three
The transmission ratio is subdivided and the range is wide. The combined model can form a large transmission ratio and low output speed.
The installation forms are various, and can be installed with any foot, B5 flange or B4 flange. The foot mounting reducer has 2 machined foot mounting planes.
Helical gear and worm gear combination, compact structure, large reduction ratio.
Installation mode: foot installation, hollow shaft installation, flange installation, torque arm installation, small flange installation.
Input mode: motor direct connection, motor belt connection or input shaft, connection flange input.
Average efficiency: reduction ratio 7.5-69.39 is 77%; 70.43-288 is 62%; The S/R combination is 57%.

S57 SF57 SA57 SAF57 S series helical worm gear box speed reducer 0.18kw 0.25kw 0.37kw 0.55kw 0.75kw 1.1kw 1.5kw 2.2kw 3kw, max. permissible torque up to 300Nm, transmission ratios from 10.78 to 196.21. Mounting mode: foot mounted, flange mounted, short flange mounted, torque arm mounted. Output shaft: CZPT shaft, hollow shaft (with key, with shrink disc and with involute spline).

Product Parameters


Company Profile




Packaging & Shipping




Hardness: Hardened Tooth Surface
Installation: 90 Degree
Layout: Expansion
Gear Shape: Bevel Gear
Step: Single-Step
Type: Gear Reducer
US$ 100/Piece
1 Piece(Min.Order)

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worm reducer

What is a worm gear reducer gearbox?

A worm gear reducer gearbox is a mechanical device that uses a worm gear and a worm to reduce the speed of a rotating shaft. The gear reducer gearbox can increase the output torque of the engine according to the gear ratio. This type of gear reducer gearbox is characterized by its flexibility and compact size. It also increases the strength and efficiency of the drive.

Hollow shaft worm gear reducer gearbox

The hollow shaft worm gear reducer gearbox is an additional output shaft connecting various motors and other gearboxes. They can be installed horizontally or vertically. Depending on size and scale, they can be used with gearboxes from 4GN to 5GX.
Worm gear reducer gearboxes are usually used in combination with helical gear reducer gearboxes. The latter is mounted on the input side of the worm gear reducer gearbox and is a great way to reduce the speed of high output motors. The gear reducer gearbox has high efficiency, low speed operation, low noise, low vibration and low energy consumption.
Worm gear reducer gearboxes are made of hard steel or non-ferrous metals, increasing their efficiency. However, gears are not indestructible, and failure to keep running can cause the gear oil to rust or emulsify. This is due to moisture condensation that occurs during the operation and shutdown of the reducer gearbox. The assembly process and quality of the bearing are important factors to prevent condensation.
Hollow shaft worm gear reducer gearboxes can be used in a variety of applications. They are commonly used in machine tools, variable speed drives and automotive applications. However, they are not suitable for continuous operation. If you plan to use a hollow shaft worm gear reducer gearbox, be sure to choose the correct one according to your requirements.

Double throat worm gear

Worm gear reducer gearboxes use a worm gear as the input gear. An electric motor or sprocket drives the worm, which is supported by anti-friction roller bearings. Worm gears are prone to wear due to the high friction in the gear teeth. This leads to corrosion of the confinement surfaces of the gears.
The pitch diameter and working depth of the worm gear are important. The pitch circle diameter is the diameter of the imaginary circle in which the worm and the gear mesh. Working depth is the maximum amount of worm thread that extends into the backlash. Throat diameter is the diameter of the circle at the lowest point of the worm gear face.
When the friction angle between the worm and the gear exceeds the lead angle of the worm, the worm gear is self-locking. This feature is useful for lifting equipment, but may be detrimental to systems that require reverse sensitivity. In these systems, the self-locking ability of the gears is a key limitation.
The double throat worm gear provides the tightest connection between the worm and the gear. The worm gear must be installed correctly to ensure maximum efficiency. One way to install the worm gear assembly is through a keyway. The keyway prevents the shaft from rotating, which is critical for transmitting torque. Then attach the gear to the hub using the set screw.
The axial and circumferential pitch of the worm gear should match the pitch diameter of the larger gear. Single-throat worm gears are single-threaded, and double-throat worm gears are double-throat. A single thread design advances one tooth, while a double thread design advances two teeth. The number of threads should match the number of mating gears.
worm reducer

Self-locking function

One of the most prominent features of a worm reducer gearbox is its self-locking function, which prevents the input and output shafts from being interchanged. The self-locking function is ideal for industrial applications where large gear reduction ratios are required without enlarging the gear box.
The self-locking function of a worm reducer gearbox can be achieved by choosing the right type of worm gear. However, it should be noted that this feature is not available in all types of worm gear reducer gearboxes. Worm gears are self-locking only when a specific speed ratio is reached. When the speed ratio is too small, the self-locking function will not work effectively.
Self-locking status of a worm reducer gearbox is determined by the lead, pressure, and coefficient of friction. In the early twentieth century, cars had a tendency to pull the steering toward the side with a flat tire. A worm drive reduced this tendency by reducing frictional forces and transmitting steering force to the wheel, which aids in steering and reduces wear and tear.
A self-locking worm reducer gearbox is a simple-machine with low mechanical efficiency. It is self-locking when the work at one end is greater than the work at the other. If the mechanical efficiency of a worm reducer gearbox is less than 50%, the friction will result in losses. In addition, the self-locking function is not applicable when the drive is reversed. This characteristic makes self-locking worm gears ideal for hoisting and lowering applications.
Another feature of a worm reducer gearbox is its ability to reduce axially. Worm gears can be double-lead or single-lead, and it is possible to adjust their backlash to compensate for tooth wear.

Heat generated by worm gears

Worm gears generate considerable amounts of heat. It is essential to reduce this heat to improve the performance of the gears. This heat can be mitigated by designing the worms with smoother surfaces. In general, the speed at which worm gears mesh should be in the range of 20 to 24 rms.
There are many approaches for calculating worm gear efficiency. However, no other approach uses an automatic approach to building the thermal network. The other methods either abstractly investigate the gearbox as an isothermal system or build the TNM statically. This paper describes a new method for automatically calculating heat balance and efficiency for worm gears.
Heat generated by worm gears is a significant source of power loss. Worm gears are typically characterized by high sliding speeds in their tooth contacts, which causes high frictional heat and increased thermal stresses. As a result, accurate calculations are necessary to ensure optimal operation. In order to determine the efficiency of a gearbox system, manufacturers often use the simulation program WTplus to calculate heat loss and efficiency. The heat balance calculation is achieved by adding the no-load and load-dependent power losses of the gearbox.
Worm gears require a special type of lubricant. A synthetic oil that is non-magnetic and has a low friction coefficient is used. However, the oil is only one of the options for lubricating worm gears. In order to extend the life of worm gears, you should also consider adding a natural additive to the lubricant.
Worm gears can have a very high reduction ratio. They can achieve massive reductions with little effort, compared to conventional gearsets which require multiple reductions. Worm gears also have fewer moving parts and places for failure than conventional gears. One disadvantage of worm gears is that they are not reversible, which limits their efficiency.
worm reducer

Size of worm gear reducer gearbox

Worm gear reducer gearboxes can be used to decrease the speed of a rotating shaft. They are usually designed with two shafts at right angles. The worm wheel acts as both the pinion and rack. The central cross section forms the boundary between the advancing and receding sides of the worm gear.
The output gear of a worm gear reducer gearbox has a small diameter compared to the input gear. This allows for low-speed operation while producing a high-torque output. This makes worm gear reducer gearboxes great for space-saving applications. They also have low initial costs.
Worm gear reducer gearboxes are one of the most popular types of speed reducer gearboxes. They can be small and powerful and are often used in power transmission systems. These units can be used in elevators, conveyor belts, security gates, and medical equipment. Worm gearing is often found in small and large sized machines.
Worm gears can also be adjusted. A dual-lead worm gear has a different lead on the left and right tooth surfaces. This allows for axial movement of the worm and can also be adjusted to reduce backlash. A backlash adjustment may be necessary as the worm wears down. In some cases, this backlash can be adjusted by adjusting the center distance between the worm gear.
The size of worm gear reducer gearbox depends on its function. For example, if the worm gear is used to reduce the speed of an automobile, it should be a model that can be installed in a small car.

China best Speed Reducer S57, Sf57, Saf57 Series Gearbox for Construction Machinery Spare Parts   worm gearbox assemblyChina best Speed Reducer S57, Sf57, Saf57 Series Gearbox for Construction Machinery Spare Parts   worm gearbox assembly
editor by CX 2023-06-07

China OEM Best Selling Boxes Transmission Gearbox Parts for Truck Gear Input Shaft wholesaler

Solution Description

Huihong Auto areas Co, . Ltd was established in 2001, it is a expert manufacturing facility that largely generates auto parts, concrete pump areas and contruction equipment parts. In previous 20 years, our compary devotes by itself to the manufacture and development of the pasrt of transmission, suspension and the CZPT of enhance.

Our products promote nicely not only on foreign marketplaces but also on Chinese ones. Components of themare employed by consumersand dealers. In these years. Our company imports technologies continually, enlarges th expenditure, renews the equipments, tries to improve the quality, the physical appearance and the technologies of items. Ww largely market the fiting of several varieties of

Car components: Japanese: MITSUBISHI, HINO, Nissan, ISUZU Korea: HYUNDAI, KIA. DAEWOO And parts of Chinese sequence, and the fitings of the European sequence.

Concrete pump parts: Chinese: SANY, ZOOMLION, XCMG Korea: JUNJIN, KCP, EVERDIGM Germany: PM.

HuiHong organization follows the marketing notion of “Top quality and what buyers need to have are the most critical issue to us, comstantly enhance our shill”. We also welcome traders all over the planet to appear to our caompany and chat about organization together.

PTO Transfer Situation Input Shaft China Concrete Pump Spare Components

Product Name:

  Transfer situation input shaft


  Remember to make contact with us for far more model info


     Machinery Mend Retailers, Retail, Concrete Pump Seal Kits


You should make contact with us for a lot more model information


   6 months

Specializing in the generation of all sorts of large vans and pump truck areas.

If you have any inquiries, make sure you speak to us.

Q1. Are you a producer or trading company?
A:We’re a company with self-export rights. 

Q2. What are your terms of packing?
A: Normally, we pack our items in CZPT white containers and brown cartons, wood boxes. If you have lawfully registered a patent, 
we can pack the items in your branded boxes soon after acquiring your authorization letters.

Q3. What is your phrases of payment?
A: T/T 30% as deposit, and 70% prior to delivery. We’ll present you the photos of the products and packages 
ahead of you spend the stability.

Q4. How about your delivery time?
A: Generally, it will consider fifteen to 30 times soon after obtaining your CZPT payment. The specific supply time depends 
on the objects and the quantity of your buy.

Q5. Can you generate according to the samples?
A: Yes, we can make by your samples or technical drawings. We can build the molds and fixtures.

Q6.  Do you take a look at all your products prior to shipping?
 A: Sure, we have a hundred% examination prior to shipping

Q7:  How do you make our enterprise extended-phrase and very good connection?
A:1. We preserve excellent quality and competitive cost to make certain our clients benefit
two. We regard each and every buyer as our good friend and we sincerely do company and make pals with them, 
no make a difference exactly where they come from.

Gear reducers are also referred to as reducers. Mechanical equipment, by either of these two names, are developed to lessen the electricity transferred in between the motor and the equipment in between the rotational speeds (revolutions for each moment). The reducer efficiently minimizes the rotational velocity developed by the motor, thus controlling the pace at which the machine runs and rising the torque developed by the motor. Multiplying the torque produced by the motor will increase the machine’s accessible power – a method recognized as “mechanical dominance”. In a more substantial context, gear reducers are generally instruments utilised to increase the efficiency of equipment procedure.
Planetary gearboxes are employed in numerous events exactly where high efficiency and substantial reduction ratio are necessary in a small room. That includes higher precision and higher torque-to-quantity ratio, it is best for torque improve, deceleration, specific positioning and handle of regenerative machinery. To make certain that the chosen planetary gearbox is the best fit for your software, it is critical to think about parameters this kind of as torque, backlash and equipment ratios when selecting a planetary gearbox.

China Standard 2502108-A4c 2502108-A8e Gearbox Driven Gear for CZPT J6l Suspension Axle Truck Spare Parts with Free Design Custom

Item Description

Solution Description


Part Variety:
2557108-A4C 2557108-A8E
2557105-A4C 2557105-AOE 2557105-AL01 2557105-A6T 2557105-A377
2557107-AOE 2557107-AAOE 12JSD160T-175716 12JSD160T-17571
8JS130T-1701180S   8JS130T-1701180S
12JS160T-1701170S 12JS160T-1701170 12JS160T-175710 12JST-175712 QH70 QH70C

Thorough Photographs



This kind of AS Gear,GEARBOX ASSY,PTO,SHAFT Important AND SO ON

IF YOU Demand OR ARE Intrigued IN OUR Goods,Please DO NOT HESISTATE TO Make contact with WITH ME,
YOU CAN Provide THE Element Quantity OR Images,OR Fast GEARBOX Metal PLATE,THEN WE CAN Check out TO GET THE Objects YOU Need.


Packaging & Transport

1. Packaging specifics: carton and wood box packaging,woven bag,brown box, or
in accordance to client needs.

two. Shipping and delivery Period: 7-30 doing work days following
obtaining 30% deposit byTT

three. Port: HangZhou Port,China.

four. Transportation: By sea, by



one.Q:About the payment phrase.
   A: We can accept TT,LC,PAYPAL,WESTERNUION,and so on

2.Q:About the Quality and cost
A: We provide great high quality products to all our consumers,give the aggressive price tag.

3.Q:About the guarantee time period
   A:At minimum half 12 months, some areas are even lengthier.

four. Q:How to make buy ?
    A:Client can speak to us on-line,or send out e-mail with detail inquiry list,then we can reply before long

five.Q:About the discount
A:If the quantity massive,we will give resonalbe price reduction.And for lengthy time cooperation buyer,we can give credit rating help



The phrase “gearbox” is employed to refer to any system that connects a motor to a machine and is made up of a collection of gears, also recognized as a gear established. It receives the major enter pace from the motor and adjustments it to a diverse output speed employing its gears. Various kinds and combinations of gears provide certain functions. The kinds of gears found in gearboxes contain spur gears, bevel gears, helical gears, helical gears and worm gears. The performance performance of a gearbox is represented by the gearbox ratio, which is the ratio of the pace of the enter source to the velocity of the output source
Beneath is a list of our currently available industrial gearboxes. If you can not locate what you are seeking for, please contact the factory for more choices. At EP, we are continually creating new goods and retrofitting aged ones to meet client demands.

Xhw02L made in China – replacement parts – in Douala Cameroon Worm Gearbox for Valve with ce certificate top quality low price

Xhw02L  made in China - replacement parts -  in Douala Cameroon  Worm Gearbox for Valve with ce certificate top quality low price

Xhw02L  made in China - replacement parts -  in Douala Cameroon  Worm Gearbox for Valve with ce certificate top quality low price

We – EPG Team the bigge EPT Chain and agricultural gearbox factory in China with 5 diverse branches. For far more information: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828

Model: XHW02L handbook operated worm gearbox for valve

XHW component switch worm gearboxes are utilized to dampers, ball valves, butterfly valves and also EPT 90° quarter switch valves. XHW element flip worm gear operator has assortment mode EPT of hand wheel for optional.
Running Environment

XHW element flip worm gearboxes are with good mechanical good quality and steady running overall performance which implement to deal with assortment weather and temperature. We strive to produce XHW element turn worm equipment operators to meet up with increased calls for.
Enclosure: IP67
Working Temperature: From -40ºC to 120ºC( -40ºF to 248ºF)
Portray: Silver grey (Customization)

XHW collection Part-flip Gearboxes use worm and worm wheel revolute pairs, with substantial functionality needle roller bearing assembled on both ends of the worm shaft. It guarantees the via EPT prerequisite for the duration of rotation. It is in large mechanical efficiency withstands big torque, little dimensions with compact design and style, and it is also effortless to run and has trustworthy self-locking function.
1.Precision casting ductile iron housing
2.Optional output torque, selection up to 32000Nm
three.Higher successful needle roller bearing
four.High energy steel input shaft
five.Stroke 0°- 90°( ±5°)
six.Compact structure
7.Grease crammed for longer existence
8.Adjustable stopper (±5°)
9.Good seal
Connect with valve
The flange connecting to valve is according to ENISO5210 or DIN3210(Customization)

Principal Goods
Worm gearbox, bevel gearbox, valve gear box, worm equipment operator, worm equipment actuator, valve worm gear, valve equipment operator, valve gear actuator, valve actuator
Equipment Operator, Valve Gearbox, Worm Gearbox, Gearbox, Velocity Reducer, Component-flip Worm Gearbox, Worm Gearbox Provider, Substantial High quality Worm Gearbox, Gearbox manufacturer


The use of original equipment manufacturer’s (OEM) part numbers or logos , e.g. CASE® and John Deere® are for reference needs only and for indicating item use and compatibility. Our firm and the shown alternative parts contained herein are not sponsored, accepted, or manufactured by the OEM.

Xhw02L  made in China - replacement parts -  in Douala Cameroon  Worm Gearbox for Valve with ce certificate top quality low price

Xhw02L  made in China - replacement parts -  in Douala Cameroon  Worm Gearbox for Valve with ce certificate top quality low price

Xhw02L  made in China - replacement parts -  in Douala Cameroon  Worm Gearbox for Valve with ce certificate top quality low price