Product Description

90 Degree Planetary Gear Reducer Right Angle Gearbox

1. Using involute gear transmission, alloy steel with carbonizing & quencher heat treatment, precision level
of gear grinding could reach ISO class 5, the profile and axial modification could enhance the bearing
capacity, stability of mesh, and low noise.
2. With integral output shaft and bearing support for both sides of planet wheel, realizing higher precision
and higher rigidity.
3. Small backlash, the accurate CHINAMFG can reach within 3 arcmins as clients request.
4. Gyration parts of the input side with dynamic balance treatment can make sure the gearbox running
steadily at high speed.
5. It can combine with any servo motor, can be designed for special combinations, and is easy for mounting.
(It can be specially designed to accept any type of servo motor, mounting is convenient)
6. Simple for maintenance, it doesn't need to change the oil(grease) during the service life.

Product photo:


ANG Precision Planetary Gearbox
Model 40-220 Type Coaxial or Right angle
Ratio 1/3 ~ 1/512 Torque 40-3000Nm
Efficiency 98% Input/Output shaft material 40Cr
Housing material 42CrMo Machining precision of gears 6 Grade
Gear material 20CrMnTi Lubricating oil Synthetic Grease
Surface hardness of gears HRC58-62 Heat treatment Carbonize & quencher
Brand of bearings C&U, HRB Vibration ≤15μm
Brand of oil seal SKF brand Oil Temp. rise (MAX) 40ºC
Noise (MAX) 55-70 dB Noise (MAX) 70º


Q: Can you make the gearbox with customization?
A: Yes, we can customize per your request, like power, voltage, speed, shaft size, flange, terminal box, IP grade, etc.

Q: Do you provide samples?
A: Yes. The sample is available for testing.

Q: What is your MOQ?
A: It is 1pcs for the beginning of our business.

Q: What's your lead time?
A: Standard products need 5-30days, a bit longer for customized products.

Q: Do you provide technical support?
A: Yes. Our company have design and development team, we can provide technical support if you

Q: How to ship to us?
A: It is available by air, or by sea, or by train.

Q: How to pay the money?
A: T/T and L/C are preferred, with a different currency, including USD, EUR, RMB, etc.

Q: How can I know the product is suitable for me?
A: >1ST confirm drawing and specification >2nd test sample >3rd start mass production.

Q: Can I come to your company to visit?
A: Yes, you are welcome to visit us at any time.

Q: How shall we contact you?
A: You can send an inquiry directly, and we will respond within 24 hours.

Application: Machinery
Function: Change Drive Torque
Layout: Coaxial or Right Angle
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Step: Double-Step
US$ 300/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

90 degree gearbox

Calculating Torque Requirements for a 90 Degree Gearbox

Calculating the torque requirements for a 90 degree gearbox involves understanding the torque transfer across the gear train and considering factors such as gear ratios, efficiency, and the desired output torque. Here's a general process:

  1. Determine Input Torque: Start by identifying the input torque required for your application. This could be the torque generated by the motor or power source that drives the gearbox.
  2. Account for Gear Ratio: Calculate the overall gear ratio of the 90 degree gearbox. This involves multiplying the gear ratios of each stage if the gearbox has multiple stages. The gear ratio is typically given as the output gear's teeth divided by the input gear's teeth.
  3. Calculate Intermediate Torque: Use the gear ratio to calculate the intermediate torque at the output of the input bevel gear set. Multiply the input torque by the gear ratio to get the intermediate torque.
  4. Consider Efficiency: Take into account the efficiency of the gearbox. Efficiency is the ratio of output power to input power, expressed as a percentage. Multiply the intermediate torque by the gearbox efficiency to get the effective torque.
  5. Calculate Final Output Torque: If there's an additional output stage with bevel gears, apply the appropriate gear ratio and efficiency to calculate the final output torque at the output shaft of the gearbox.

Keep in mind that real-world factors such as friction, load variations, and mechanical losses can influence the accuracy of torque calculations. It's advisable to incorporate safety factors to ensure the gearbox can handle peak loads without failure.

Consulting gearbox manufacturers' specifications and engineering guides can provide more accurate information and guidance on torque calculations for specific gearbox models.

90 degree gearbox

Limitations and Disadvantages of Using a 90 Degree Gearbox

While 90 degree gearboxes offer various advantages, they also come with limitations and disadvantages that should be considered:

  • Complexity: 90 degree gearboxes are often more complex in design compared to straight-through gearboxes. This complexity can lead to higher manufacturing costs, maintenance challenges, and potential points of failure.
  • Efficiency Loss: The gear meshing and direction changes in a 90 degree gearbox can lead to some energy loss due to friction and mechanical inefficiencies, impacting the overall efficiency of the system.
  • Backlash: Due to the gear meshing and direction changes, 90 degree gearboxes can experience backlash and gear play, which may require additional measures to mitigate and reduce.
  • Size and Weight: The design of 90 degree gearboxes often results in a bulkier and heavier unit compared to some other gearbox configurations, which can impact space constraints and overall system weight.
  • Maintenance Complexity: Accessing and maintaining components within a 90 degree gearbox can be more challenging due to the intricate design and tight spaces, potentially leading to longer maintenance times.
  • Cost: The manufacturing complexity, precision requirements, and additional components needed for 90 degree gearboxes can contribute to higher initial costs compared to simpler gearbox designs.
  • Noise and Vibration: The multiple gear meshing and direction changes can introduce noise and vibration into the system, requiring additional measures for noise reduction and vibration dampening.

It's important to carefully assess your specific application requirements, space constraints, efficiency goals, and budget considerations before deciding to use a 90 degree gearbox. While they offer unique advantages, these limitations should be taken into account to make an informed gearbox selection.

90 degree gearbox

Applications of a 90 Degree Gearbox

A 90 degree gearbox, also known as a right-angle gearbox, finds diverse applications across various industries due to its ability to change the direction of rotational motion by 90 degrees. Some common applications include:

  • Automotive Industry: 90 degree gearboxes are used in automotive drivetrains to transfer power from the engine to the wheels, especially in front-wheel drive configurations.
  • Conveyor Systems: These gearboxes are employed in conveyor systems to change the direction of material flow at right angles, allowing efficient material handling and sorting.
  • Printing Machinery: In printing presses, 90 degree gearboxes enable the smooth transfer of motion from the main motor to various rollers and components, ensuring accurate paper movement.
  • Machine Tools: They are used in machine tools such as milling machines and lathes to transmit power at right angles, enabling precise machining operations.
  • Robotics: 90 degree gearboxes play a crucial role in robotic arms, allowing joints to move and rotate in different directions while maintaining a compact design.
  • Marine Applications: They are used in marine propulsion systems to change the direction of power transmission from the engine to the propeller shaft.
  • Industrial Equipment: These gearboxes are utilized in various industrial equipment like pumps, compressors, and generators to transmit power efficiently at right angles.
  • Medical Equipment: They find use in medical devices and equipment that require compact design and efficient power transmission at different angles.

The versatility of 90 degree gearboxes makes them a valuable component in applications that require changing the direction of motion while maintaining space efficiency and power transmission integrity.

China factory 90 Degree Planetary Gear Reducer Right Angle Gearbox   gearbox definition		China factory 90 Degree Planetary Gear Reducer Right Angle Gearbox   gearbox definition
editor by CX 2023-09-25

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