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How to use the nameplate of a right angle gear motor to order replacement parts

H1:How to Order a Replacement Using the Nameplate

Follow these steps to ensure a perfect match:

  1. Record the motor model – 5IK120RGU-CF

  2. Record the gearbox model – 5GU-5K RC-C

  3. Confirm voltage & frequency – 220V, 50Hz

  4. Confirm shaft type – RC (hollow) or RT (solid)

  5. Confirm gear ratio – 5K (5:1)

  6. Note optional features – Fan (F), brake (M), terminal box (T)

H2:Common ordering errors to avoid:

  • Ordering a constant-speed motor when a speed-control (R) model is needed

  • Confusing RC (hollow) with RT (solid)

  • Missing the frame size (5 = 90mm vs. 6 = 104mm)

Related reading: 120W vs 140W vs 200W Right Angle Gear Motor Selection Guide | 6GU Right Angle Gear Motor Model Naming Guide

right angle gear motor model code

Frame Size：60,70,80,90,104,mm
Power:10W-200W+
Voltage:110V-415V
Gear Ratio:3-200K

H3:FAQ

Q1: What does the "R" in 5IK120RGU stand for?
A: "R" indicates Speed Control (调速). This motor requires an external speed controller to vary RPM.

Q2: What is the output speed of a 5:1 gearbox with a 1250 r/min motor?
A: Approximately 250 r/min (1250 ÷ 5), minus 2–20% load slip.

Q3: Can I replace a 5GU-5K RC-C with a 5GU-5K RT?
A: Only if your mechanical connection allows a solid shaft with a coupling. RC (hollow) and RT (solid) are not directly interchangeable without modifying the driven shaft.

Q4: Is the 5IK120RGU-CF available in 110V?
A: Yes. The voltage code changes from "C" (220V) to "A" (110V). The model would be 5IK120RGU-AF.

Q5: What is the maximum permissible torque for this gearbox?
A: For the 90mm 5GU series, the maximum permissible torque is typically around 20 N·m, depending on the ratio.

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