NMRV040 Installation Dimensions
The NMRV040 is a compact right-angle worm gearbox suitable for conveyors, packaging equipment, automation systems and other small industrial machines.
| Specification | NMRV040 / RV40 |
|---|---|
| Reference height | 121 mm |
| Reference dimensions | 71 × 100 mm |
| Output bore | 18 mm |
| Input bore | 11 / 14 mm |
| Gear ratios | 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
NMRV040 Motor Flange Options
| Input bore | Illustrated motor power | Flange diameter |
|---|---|---|
| 11 mm | 0.12 / 0.18 kW | Ø90 / Ø140 mm |
| 14 mm | 0.25 / 0.37 kW | Ø105 / Ø160 mm |
The motor shaft diameter and flange dimensions should always be confirmed before ordering.
NMRV040 Square Flange Dimensions
| Flange size | Pilot bore | Diagonal bolt distance | Input bore |
|---|---|---|---|
| 60 mm | 50 mm | 70 mm | 14 mm |
| 80 mm | 70 mm | 90 mm | 14 mm |
| 86 mm | 73 mm | 95 mm | 14 mm |
| 90 mm | 83 mm | 104 mm | 14 mm |
| 104 mm | 94 mm | 120 mm | 11 mm |
For a specific stepper or servo motor, provide the motor drawing so the shaft and flange dimensions can be checked.
What Ratios Are Available for RV40?
Standard illustrated ratios are 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80 and 100:1.
Example: 1400 rpm motor and 50:1 ratio: 1400 ÷ 50 = approximately 28 rpm.
Actual output speed may vary with motor rated speed, load and operating conditions.
How to Select the Right RV40
Confirm motor power, input speed, required output speed, shaft diameter and mounting position. For replacement applications, send the existing gearbox nameplate and installation dimensions. Review the NMRV size guide, mounting-position guide, ratio and torque calculator and NMRV worm gearbox range for related checks.