China factory R Series 50: 1 Ratio Helical Gear Coaxial Helical Gear Speed Reducer synchromesh gearbox

Product Description

R Series 50 :1 Ratio Helical Gear Coaxial Helical Gear speed reducer 

Product Description

1. Housing: Cast Iron
2. Gears: Helical Gears
3. Input Configurations:
Equipped with Electric Motors
CHINAMFG Shaft Input
IEC or NEMA Motor Flange
4. Applicable Motors:
Single Phase AC Motor, Three Phase AC Motor
Brake Motors
Inverter Motors
Multi-speed Motors
Explosion-proof Motor
Roller Motor
5. Output Configurations:
CHINAMFG Shaft Output

Detailed Photos

R Series (Foot-mounted): R18~R168
RS Series (Foot-mounted, CHINAMFG Shaft Input)
RF Series (Flange-mounted): RF18~RF168
RFS Series (Flange-mounted, CHINAMFG Shaft Input)
RX Series (1 Stage, Foot-mounted): RX38~RX158
RXS Series (1 Stage, Foot-mounted, CHINAMFG Shaft Input)
RXF Series (1 Stage, Flange-mounted): RXF38~RXF158
RXFS Series (1 Stage, Flange-mounted, CHINAMFG Shaft Input)
RM Series (agitator gearboxes): Specially designed for agitating applications
1. Compact structure, modular design
2. Single-stage, two-stage and three-stage sizes
3. High reduction ratio and torque density
4. Long service life
5. Can be combined with other types of gearboxes (Such as R Series, K Series, F Series, S Series, UDL Series)
2 Stage or 3 Stage
Foot Mounted
Flange Mounted
Oil-bath and Splash Lubrication
Natural Cooling

Product Parameters

Models Output Shaft Dia. Input Shaft Dia. Power(kW) Ratio Max. Torque(Nm)
R/RF18 20mm 0.18~0.75 3.83~74.84 85
R/RF28 25mm 16mm 0.18~3 3.37~135.09 130
R/RF38 25mm 16mm 0.18~3 3.41~134.82 200
R/RF48 30mm 19mm 0.18~5.5 3.83~176.88 300
R/RF58 35mm 19mm 0.18~7.5 4.39~186.89 450
R/RF68 35mm 19mm 0.18~7.5 4.29~199.81 600
R/RF78 40mm 24mm 0.18~11 5.21~195.24 820
R/RF88 50mm 28mm 0.55~22 5.36~246.54 1550
R/RF98 60mm 38mm 0.55~30 4.49~289.6 3000
R/RF108 70mm 42mm 2.2~45 5.06~245.5 4300
R/RF138 90mm 55mm 5.5~55 5.51~223.34 8000
R/RF148 110mm 55mm 11~90 5.00~163.46 13000
R/RF168 120mm 70mm 11~160 8.77~196.41 18000

1 Stage

Models Output Shaft Dia. Input Shaft Dia. Power(kW) Ratio Max. Torque(Nm)
RX/RXF38 20mm 16mm 0.18~1.1 1.6~3.76 20
RX/RXF58 20mm 19mm 0.18~5.5 1.3~5.5 70
RX/RXF68 25mm 19mm 0.18~7.5 1.4~6.07 135
RX/RXF78 30mm 24mm 1.1~11 1.42~5.63 215
RX/RXF88 40mm 28mm 3~22 1.39~6.44 400
RX/RXF98 50mm 38mm 5.5~30 1.42~5.82 600
RX/RXF108 60mm 42mm 7.5~45 1.44~6.65 830
RX/RXF128 75mm 55mm 7.5~90 1.56~6.47 1110
RX/RXF158 90mm 70mm 11~132 1.63~6.22 1680

Packaging & Shipping

Packaging & Delivery
Speed Reducer Worm Gearbox Packaging Details:Plastic Bags, Plywood Cases
Port:ZheJiang /HangZhou

Company Profile

1.More than 35 years experience in R&D and manufacturing, export gear motors & industrial gearboxes.
2. Standardization of the gearbox series
3. Strong design capability for large power & customized gearboxes.
4. High quality gearboxes and proven solutions provider.
5. Strict quality control process, stable quality.
6. Less than 2% of the quality complaints.
7. Modular design, short delivery time.
8. Quick response & professional services.

Customer visiting:

After Sales Service

Pre-sale services 1. Select equipment model.
2.Design and manufacture products according to clients’ special requirement.
3.Train technical personal for clients
Services during selling 1.Pre-check and accept products ahead of delivery.
2. Help clients to draft solving plans.
After-sale services 1.Assist clients to prepare for the first construction scheme.
2. Train the first-line operators.
3.Take initiative to eliminate the trouble rapidly.
4. Provide technical exchanging.


1.Q:What kinds of gearbox can you produce for us?

A:Main products of our company: UDL series speed variator,RV series worm gear reducer, ATA series shaft mounted gearbox, X,B series gear reducer,
P series planetary gearbox and R, S, K, and F series helical-tooth reducer, more
than 1 hundred models and thousands of specifications
2.Q:Can you make as per custom drawing?
A: Yes, we offer customized service for customers.
3.Q:What is your terms of payment ?
A: 30% Advance payment by T/T after signing the contract.70% before delivery
4.Q:What is your MOQ?
A: 1 Set

If you are interested in our product, welcome you contact me.
Our team will support any need you might have.
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Application: Machinery, Industry
Hardness: Hardened
Installation: Horizontal Type
Layout: Coaxial
Gear Shape: Helical Gear
Step: Single-Step


Customized Request

gear gearbox

How do manufacturers ensure the precision of gear tooth profiles in gear reducers?

Manufacturers employ several techniques to ensure the precision of gear tooth profiles in gear reducers, which is crucial for optimal performance and efficiency:

1. Precision Machining: Gear teeth are typically machined using advanced CNC (Computer Numerical Control) machines that can achieve high levels of accuracy and repeatability. This ensures consistent gear tooth profiles across multiple components.

2. Quality Control Measures: Rigorous quality control processes, such as dimensional inspections and profile measurements, are performed at various stages of manufacturing to verify that gear tooth profiles meet the required specifications.

3. Tooth Profile Design: Engineers use specialized software and simulation tools to design gear tooth profiles with precise involute shapes and accurate dimensions. These designs are then translated into machine instructions for manufacturing.

4. Material Selection: High-quality materials with excellent wear resistance and dimensional stability are chosen to minimize the potential for deformation or inaccuracies during machining and operation.

5. Heat Treatment: Heat treatment processes, such as carburizing and quenching, are applied to enhance the surface hardness and durability of gear teeth, reducing the risk of wear and deformation over time.

6. Tooth Grinding and Finishing: After initial machining, gear teeth often undergo precision grinding and finishing processes to achieve the desired tooth profile accuracy and surface finish.

7. Post-Processing Inspection: Gear tooth profiles are inspected again after manufacturing processes to verify that the final components meet the specified tolerances and performance criteria.

8. Computer-Aided Manufacturing (CAM): CAM software is used to generate tool paths and machining instructions, enabling precise control over tool movements and material removal during gear manufacturing.

By combining these techniques and leveraging advanced manufacturing technologies, manufacturers can achieve the necessary precision in gear tooth profiles, resulting in reliable and efficient gear reducers for various industrial applications.

gear gearbox

How do gear reducers handle shock loads and sudden changes in torque?

Gear reducers are designed to handle shock loads and sudden changes in torque through several mechanisms that enhance their durability and reliability in challenging operating conditions.

1. Robust Construction: Gear reducers are constructed using high-strength materials and precision manufacturing techniques. This ensures that the gears, bearings, and other components can withstand sudden impacts and high torque fluctuations without deformation or failure.

2. Shock-Absorbing Features: Some gear reducer designs incorporate shock-absorbing features, such as flexible couplings, elastomeric elements, or torsionally flexible gear designs. These features help dampen and dissipate the energy from sudden shocks or torque spikes, reducing the impact on the entire system.

3. Torque Limiters: In applications where shock loads are common, torque limiters may be integrated into the gear reducer. These devices automatically disengage or slip when a certain torque threshold is exceeded, preventing damage to the gears and other components.

4. Overload Protection: Gear reducers can be equipped with overload protection mechanisms, such as shear pins or torque sensors. These mechanisms detect excessive torque and disengage the drive temporarily, allowing the system to absorb the shock or adjust to the sudden torque change.

5. Proper Lubrication: Adequate lubrication is essential for managing shock loads and sudden torque changes. High-quality lubricants reduce friction and wear, helping the gear reducer withstand dynamic forces and maintain smooth operation.

6. Dynamic Load Distribution: Gear reducers distribute dynamic loads across multiple gear teeth, which helps prevent localized stress concentrations. This feature minimizes the risk of tooth breakage and gear damage when subjected to sudden changes in torque.

By incorporating these design features and mechanisms, gear reducers can effectively handle shock loads and sudden changes in torque, ensuring the longevity and reliability of various industrial and mechanical systems.

gear gearbox

Function of Gear Reducers in Mechanical Systems

A gear reducer, also known as a gear reduction unit or gearbox, is a mechanical device designed to reduce the speed of an input shaft while increasing its torque output. It accomplishes this through the use of a set of interlocking gears with different sizes.

The primary function of a gear reducer in mechanical systems is to:

  • Speed Reduction: The gear reducer takes the high-speed rotation of the input shaft and transmits it to the output shaft through a set of gears. The gears are configured in such a way that the output gear has a larger diameter than the input gear. As a result, the output shaft rotates at a lower speed than the input shaft, but with increased torque.
  • Torque Increase: Due to the size difference between the input and output gears, the torque applied to the output shaft is greater than that of the input shaft. This torque multiplication allows the system to handle heavier loads and perform tasks requiring higher force.

Gear reducers are widely used in various industries and applications where it’s necessary to adapt the speed and torque characteristics of a power source to meet the requirements of the driven equipment. They can be found in machinery such as conveyor systems, industrial machinery, vehicles, and more.

China factory R Series 50: 1 Ratio Helical Gear Coaxial Helical Gear Speed Reducer   synchromesh gearbox	China factory R Series 50: 1 Ratio Helical Gear Coaxial Helical Gear Speed Reducer   synchromesh gearbox
editor by CX 2024-04-10


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