80mm 90mm 104mm 120mm Hollow Right Angle Gear Motor with Gear Box
H1:80mm 90mm 104mm 120mm hollow right angle gear motor with gearbox parameters
Hollow shaft right angle gear motors are widely used in conveyor systems, packaging machinery, and industrial automation. This guide covers the four most common frame sizes -80mm, 90mm, 104mm, and 120mm technical specifications
H2:80mm right angle gear motor, 90mm hollow shaft motor, 104mm right angle gearbox, 120mm hollow shaft gear motor Frame Size Overview
| Frame Size | Gearbox Series | Typical Power Range | Hollow Bore Diameter | Max Permissible Torque |
| 80mm | 4GU-RC / 4GN-RC | 25W – 40W | Φ15mm | 3.9 – 12 N·m |
| 90mm | 5GU-RC | 40W – 120W | Φ17mm | 9.3 – 40 N·m |
| 104mm | 6GU-RC | 120W – 200W | Φ22mm | 15 – 60 N·m |
| 120mm | 7GU-RC | 400W – 750W | Φ22mm – Φ25mm | 60 N·m+ |
Model Naming Convention: RC Hollow Shaft
Understanding the model code ensures correct ordering. The RC suffix indicates a Right Angle Hollow Shaft configuration.
| Code | Meaning |
|---|---|
| 4GU / 5GU / 6GU / 7GU | Gearbox frame size (80 / 90 / 104 / 120mm) |
| RC | Right angle hollow shaft |
| RT | Right angle solid shaft (for comparison) |
| 15RC / 30RC / 100RC | Gear ratio (15:1, 30:1, 100:1) |
bevel gear motorFAQ
Q1: What is the difference between RC and RT gear motors?
A: RC (Right Angle Hollow Shaft) mounts directly onto the driven shaft, eliminating couplings and chains. RT (Right Angle Solid Shaft) uses a keyway shaft for coupling or pulley mounting.
Q2: Can I use a 90mm hollow shaft motor on a 104mm application?
A: Only if the driven shaft diameter and torque requirements match. The 104mm frame offers higher torque capacity and a larger Φ22mm bore.
Q3: Are these motors available with brakes?
A: Yes. Electromagnetic brake models are available with the “M” suffix.
Q4: What is the maximum gear ratio available?
A: Up to 200:1 for 80mm/90mm/104mm frames; up to 640:1 for 120mm frames.
Q5: Do I need a speed controller?
A: For variable speed, choose the “R” speed control version and pair with an external controller. Constant-speed models do not require a controller.
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