Right Angle Gear Reducer
(Also known as Right-Angle Bevel Gearbox / Bevel Gear Reducer / 90° Gear Reducer)
A Right Angle Gear Reducer is a mechanical transmission unit designed to change the direction of torque transmission by 90 degrees while reducing rotational speed and increasing torque. It uses bevel gears — typically spiral or hypoid types — to transfer motion efficiently between perpendicular shafts.
This type of gear reducer is commonly used in automation machinery, conveyors, packaging systems, robotics, and machine tools, especially where space-saving layouts are required.
Working Principle
Input Rotation: Power from a motor or drive enters the input shaft.
Bevel Gear Engagement: The input shaft’s bevel pinion meshes with a bevel crown gear at a 90° angle.
Speed Reduction: The gear ratio determines how much the output speed is reduced and the torque is increased.
Output Rotation: The output shaft delivers torque in a perpendicular direction relative to the input.
Key Features
90° Power Transmission: Ideal for compact machinery layouts.
High Efficiency: Up to 95–98%, especially with spiral or hypoid bevel designs.
Smooth & Quiet Operation: Precision-ground gears minimize vibration.
High Torque Output: Robust shafts and bearings handle heavy loads.
Low Backlash Options: Available for servo and precision automation.
Durable Construction: Hardened alloy steel gears ensure long life.
Mounting Flexibility: Available with hollow shaft, flange, or solid output options.
Common Bevel Gear Types
| Gear Type | Description | Advantages |
|---|---|---|
| Straight Bevel | Simple conical gears with straight teeth | Economical, reliable, suitable for moderate speeds |
| Spiral Bevel | Curved teeth for gradual engagement | Quieter, smoother, handles higher torque |
| Hypoid Bevel | Offset gear shafts with sliding contact | Higher torque capacity, quieter operation |
Applications
Robotics and Automation Equipment
CNC Machine Tools and Milling Heads
Conveyors and Packaging Lines
Printing and Textile Machines
Power Transmission in Compact Spaces
Rotary Tables, Lifting Devices, and Servo Drives
Advantages
Compact design with perpendicular input/output layout.
High torque transmission in limited spaces.
Reliable, efficient, and long-lasting operation.
Adaptable to both servo and AC motor systems.
Available in single or multi-stage configurations for higher reduction ratios.
RB/RL Series Right Angle Gearbox
ZRPS/ZRPN Right Angle Gearbox
ZSR/ZNR Series Right Angle Gearbox