VRBR Series Right Angle Planetary Gearbox
The VRBR Series right angle planetary gearbox is designed for servo-driven systems requiring 90-degree transmission, compact installation, high torque output, and reliable precision. It is suitable for automation equipment, packaging machinery, robotic systems, conveyors, and space-limited industrial drive layouts.
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Key Advantages of VRBR Series
Right Angle Design
90-degree transmission structure for compact corner installation and flexible machine layouts.
Space Saving Layout
Suitable for equipment where inline gearbox installation space is limited.
High Torque Output
Provides stable torque transmission for servo-driven industrial applications.
Precision Motion Control
Supports positioning, indexing, feeding, and controlled speed transmission.
Ordering Code Representation
The VRBR model code defines the gearbox series, frame size, speed ratio, motor shaft diameter, motor pilot diameter, motor mounting hole pitch, motor screw size, and reducer output shaft diameter.
VRBR Series
60 / 90 / 120 / 140 / 180
L1: 3–10
L2: 12–100
Motor Interface and Installation Dimensions
Before ordering, please confirm the servo motor interface and reducer output dimensions. These values affect motor matching, shaft connection, flange alignment, and installation accuracy.
Motor Shaft Diameter
Confirm the motor shaft size before selecting the reducer input bore.
Motor Pilot Diameter
The pilot diameter helps align the servo motor and gearbox input side accurately.
Mounting Hole Pitch
Check the motor mounting hole distance to match the adapter flange.
Output Shaft Diameter
Select the reducer output shaft according to the driven mechanism.
Reducer Operating Condition Selection Table
The service factor should be selected according to load type, starts per hour, and daily operating time. For continuous operation or large output inertia, a larger gearbox frame may be recommended.
| Load Type | Starts per Hour (Z) | h ≤ 4 | 4 ≤ h ≤ 8 | 8 ≤ h ≤ 12 | 12 ≤ h ≤ 16 | 16 ≤ h ≤ 24 |
|---|---|---|---|---|---|---|
| Even and Stable Load | Z ≤ 10 | 0.9 | 1.0 | 1.1 | 1.4 | 1.8 |
| 10 ≤ Z ≤ 30 | 1.0 | 1.2 | 1.3 | 1.6 | 2.0 | |
| 30 ≤ Z ≤ 100 | 1.2 | 1.4 | 1.5 | 1.8 | 2.2 | |
| Medium Shock Load | Z ≤ 10 | 1.4 | 1.5 | 1.8 | 2.2 | |
| 10 ≤ Z ≤ 30 | 1.4 | 1.6 | 1.65 | 2.0 | 2.5 | |
| 30 ≤ Z ≤ 100 | 1.6 | 1.8 | 2.0 | 2.2 | 2.8 | |
| Heavy Shock Load | Z ≤ 10 | 1.6 | 1.8 | 2.2 | 2.2 | 2.8 |
| 10 ≤ Z ≤ 30 | 1.8 | 2.0 | 2.4 | 2.4 | 3.0 | |
| 30 ≤ Z ≤ 100 | 2.0 | 3.0 | 2.7 | 2.7 | 3.3 |
Reducer Performance Parameter Table
The following data summarizes the VRBR Series right angle planetary gearbox range. Final selection should be confirmed according to torque, ratio, speed, load condition, precision requirement, and motor model.
| Item | Unit | Ratio | VRBR60 | VRBR90 | VRBR120 | VRBR140 | VRBR180 |
|---|---|---|---|---|---|---|---|
| Rated Output Torque T2N | N·m | 3 | 55 | 130 | 208 | 430 | 720 |
| Rated Output Torque T2N | N·m | 4 | 60 | 160 | 330 | 650 | 1200 |
| Rated Output Torque T2N | N·m | 5 | 60 | 160 | 330 | 650 | 1200 |
| Rated Output Torque T2N | N·m | 7 | 50 | 140 | 300 | 550 | 1100 |
| Rated Output Torque T2N | N·m | 10 | 45 | 100 | 220 | 390 | 900 |
| Maximum Output Torque T2B | N·m | 3–100 | 2.5 × rated torque | ||||
| Rated Input Speed n1N | rpm | 3–100 | 4000 | 4000 | 4000 | 3000 | 3000 |
| Maximum Input Speed n1B | rpm | 3–100 | 8000 | 8000 | 8000 | 6000 | 6000 |
| Helical Gear Precision Clearance P2 | arcmin | L1 | ≤5–7 | ≤4–6 | ≤4–6 | ≤4–6 | ≤5–7 |
| Helical Gear Precision Clearance P2 | arcmin | L2 | ≤7–9 | ≤6–8 | ≤6–8 | ≤6–8 | ≤7–9 |
| Torsional Rigidity | N·m/arcmin | 3–100 | 7 | 14 | 25 | 50 | 145 |
| Allowable Radial Force F1 | N | 3–100 | 1530 | 3250 | 6700 | 9400 | 14500 |
| Allowable Axial Force F2 | N | 3–100 | 765 | 1625 | 3350 | 4700 | 7250 |
| Service Life | hr | 3–100 | 30000 h continuous operation | ||||
| Efficiency η | % | L1 | ≥97% | ||||
| Efficiency η | % | L2 | ≥94% | ||||
| Weight | kg | L1 | 2 | 3.7 | 10 | 21 | 37 |
| Weight | kg | L2 | 3.7 | 5 | 14 | 26 | 50 |
| Noise | dB | 3–100 | ≤56 | ≤60 | ≤60 | ≤63 | ≤67 |
| Protection Level | – | 3–100 | IP65 | ||||
| Installation Method | – | 3–100 | Arbitrary | ||||
| Operating Temperature | ℃ | 3–100 | -10℃ to +90℃ | ||||
Moment of Inertia of Reducer
Moment of inertia is important for servo motor matching, acceleration, deceleration, and positioning control.
| Series | Ratio | VRBR60 | VRBR90 | VRBR120 | VRBR140 | VRBR180 |
|---|---|---|---|---|---|---|
| L1 / kg·cm² | 3 | 0.23 | 0.97 | 2.95 | 9.86 | 28.9 |
| 4 | 0.18 | 0.67 | 2.87 | 7.54 | 25.03 | |
| 5 | 0.17 | 0.65 | 2.71 | 7.42 | 23.29 | |
| 7 | 0.14 | 0.6 | 2.62 | 7.14 | 22.48 | |
| 10 | 0.14 | 0.58 | 2.57 | 7.03 | 22.51 | |
| L2 / kg·cm² | 16 | 0.18 | 0.65 | 0.58 | 2.8 | 7.42 |
| 20–35 | 0.17 | 0.6 | 0.47 | 2.71 | 7.06 | |
| 40–100 | 0.04 | 0.58 | 0.44 | 2.57 | 7.06 |
Outline Dimensional Drawing
The outline dimensional drawing provides detailed information on the installation envelope, right angle structure, input and output dimensions, shaft size, flange dimensions, and mounting hole positions. High-resolution drawings help confirm accurate integration with servo motors and industrial equipment.
Dimension Table
| Size | LA | LZ | S | LR | LB | LE | LC | L |
|---|---|---|---|---|---|---|---|---|
| VRBR60-L1 | Φ70 | 4-M4 | Φ11 / Φ14 | 33 | Φ50 | 5 | 60 | 148 |
| VRBR60-L2 | Φ70 | 4-M4 | Φ11 / Φ14 | 33 | Φ50 | 5 | 60 | 177 |
| VRBR90-L1 | Φ90 | 4-M5,4-M6 | Φ19 | 46.5 | Φ70 | 6.5 | 80 | 205.8 |
| VRBR90-L2 | Φ90 | 4-M5,4-M6 | Φ19 | 46.5 | Φ70 | 6.5 | 80 | 248.3 |
| VRBR120-L1 | Φ145 | 4-M8 | Φ22 / Φ24 | 64 | Φ110 | 10 | 130 | 268 |
| VRBR120-L2 | Φ145 | 4-M8 | Φ22 / Φ24 | 63.5 | Φ110 | 10 | 130 | 312 |
| VRBR140-L1 | Φ200 | 4-M12 | Φ35 / Φ42 | 83 | Φ114.3 | 10 | 180 | 364.5 |
| VRBR140-L2 | Φ200 | 4-M12 | Φ35 / Φ42 | 83 | Φ114.3 | 10 | 180 | 393.5 |
| VRBR180-L1 | Φ200 | 4-M12 | Φ35 | 83 | Φ114.3 | 10 | 180 | 386.5 |
| VRBR180-L2 | Φ200 | 4-M12 | Φ35 | 83 | Φ114.3 | 10 | 180 | 446 |
Typical Applications
VRBR Series right angle planetary gearboxes are suitable for machines requiring 90-degree transmission, compact installation, and stable servo motion control.
Packaging Machinery
Used in feeding, sealing, labeling, indexing, and synchronized motion systems.
View Packaging ApplicationsAutomation Equipment
Suitable for transfer systems, assembly machines, inspection equipment, and compact drive units.
View Automation ApplicationsRobotics
Applied in robot auxiliary axes, grippers, rotary modules, and space-limited servo systems.
View Robotics ApplicationsConveyor Systems
Used where the motor direction needs to be changed by 90 degrees for compact installation.
Discuss Your ApplicationHow to Select a VRBR Right Angle Gearbox
To select a suitable VRBR right angle planetary gearbox, confirm the servo motor model, required ratio, output torque, input speed, load type, daily operating time, start-stop frequency, backlash requirement, radial load, axial load, and available installation space. For high-frequency operation or shock load conditions, choosing a larger frame size can improve reliability.
Related Planetary Gearbox Series
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