NMRV030 Installation Dimensions
The NMRV030 dimension drawing shows the main gearbox size, input interface and hollow output bore.
| Specification | NMRV030 configuration |
|---|---|
| Gearbox size | RV30 / NMRV030 |
| Reference height | 97 mm |
| Reference dimensions | 56 × 80 mm |
| Output bore | 14 mm |
| Round flange input bore | 9 / 11 mm |
| Gear ratios | 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
NMRV030 Motor Flange Options
| Input bore | Illustrated compatible motor power | Flange diameter |
|---|---|---|
| 9 mm | 0.06 / 0.09 kW | 80 mm / 120 mm |
| 11 mm | 0.12 / 0.18 kW | 90 mm / 140 mm |
Always confirm motor shaft diameter, flange pilot and bolt pattern before production.
NMRV030 Square Flange Dimensions
Square flange options may be used with compatible stepper or servo motors.
| Flange size | Pilot bore | Diagonal bolt distance | Input bore |
|---|---|---|---|
| 57 mm | 38 mm | 67 mm | 9 mm |
| 60 mm | 50 mm | 70 mm | 11 mm |
| 90 mm | 83 mm | 104 mm | 11 mm |
| 104 mm | 94 mm | 120 mm | 11 mm |
RV30 Ratio and Output Speed
Example assumption: a 1400 rpm motor.
| Ratio | Approx. output speed |
|---|---|
| 10:1 | 140 rpm |
| 20:1 | 70 rpm |
| 30:1 | 46.7 rpm |
| 50:1 | 28 rpm |
| 80:1 | 17.5 rpm |
| 100:1 | 14 rpm |
Actual output speed may vary with motor rated speed, load and operating conditions. Use the ratio and torque calculator for an initial estimate.
How to Select the Right RV30
Confirm required output speed, motor power, motor shaft size, output bore and mounting position. For replacement projects, send the existing gearbox nameplate and installation dimensions. See the NMRV size guide, mounting-position guide and NMRV worm gearbox range for related references.
Need an NMRV030 Dimension Drawing?
Send SMK your motor model, power, ratio, output speed and mounting requirements. We can check a compatible RV30 configuration and provide the appropriate dimensional drawing.