Outline dimension drawing
Product Overview
The Small AC Gear Reducer Motor 120W is the top-output model of the 5RK series, built on a 90 mm frame with a heavy-duty gearbox. It delivers rated torque from 544 to 910 mN·m at 1350–1550 r/min, covering the 90–120W power range. This 120W gear reducer motor gives you the maximum torque available in the compact 90 mm frame, making it ideal for machines that need strong, continuous output without moving up to a larger 100 mm drive.
Key Features
- Maximum-torque 90 mm frame in the 5RK series
- Reversible 30-minute rated duty for forward and reverse operation
- Single-phase 110V/220V and three-phase 380V options at 50/60Hz
- Rated torque 544–910 mN·m at 1350–1550 r/min
- Gear ratios from 3:1 to 500:1, maximum allowable load up to 19.6 N·m (200 kg·cm)
- Roomy gearbox accepts the higher 120W motor winding without enlarging the mounting footprint
Applications
The 120W gear reducer motor suits heavy-duty compact drives in conveyor systems, industrial mixers, packaging machinery, feeders, and agricultural equipment. It is frequently selected when equipment builders want the most power the 90 mm frame can offer. If your machine needs even more output, the 6RK series on the 100 mm frame continues upward with higher-power models. Browse all options in the small AC gear reducer motor range.
How to Choose the Right Gear Motor
Verify the required torque and speed against the allowable load table and confirm voltage, frequency, and duty cycle. Our gear motor selection guide covers the sizing process, and Tenchuan’s team can recommend the right unit for your machine.
FAQ
What voltages are available for the 120W gear motor?
Single-phase 110V and 220V, plus a three-phase 380V version, in 50Hz and 60Hz ratings.
What is the rated torque?
Rated torque is 544–910 mN·m depending on the model, with a maximum allowable load of 19.6 N·m.
Can this motor run in reverse?
Yes, the reversible 30-minute rated models support forward and reverse rotation.
What is the maximum reduction ratio?
Ratios up to 500:1 are available, as shown in the allowable load table.
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