50:1 Worm Gearbox NMRVS30 Worm Gear Speed Reducer 11mm Input Shaft Diameter
from
$41.73
10 or more $38.43
100 or more $35.61
- Model: NMRVS30-G50-D11
- Weight: 1.22kg
Available Options
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Custom Design Options
Select from the customization options below.
The size of this gearbox is 57mmx57mm and the input shaft diameter is 11mm. This worm gearbox is designed for Nema 23 Stepper Motor or other 57mmx57mm size motor, the output shaft is offset by 90°from the drive shaft. Besides big cases, no gap structure of box means a maintenance-free that is hermetically sealed. It prevents the lubricant from easily losing and going bad, and exchanging.
Feature
- High torque and high strength
- Worm wheel: Bronze Cu Sn12 Ni2 (UNI7013-10)
- Excellent mechanical strength and particularly lightweight
- Aluminium units are supplied complete with synthetic oil and allow for universal mounting positions, with no need to modify lubricant quantity
Gearbox Specifications
- Part Number: NMRVS30-G50-D11
- Gearbox Type: Worm Gearbox
- Gear Material: Alloy Steel
- Gear Ratio: 50:1
- Output Max.Permissible Torque: 17Nm(150.46lb-in)
- Output Max. Radial Load: 1.28kN
- Output Type: Hollow Bore
- Output Bore Diameter: Φ14mm
- Input Shaft Type: Key way
- Input Shaft Diameter: Φ11mm
- Input Shaft Max. Length: 25mm
Note
- Recommend Input Speed <=1500rpm.
- Due to high backlash, worm gearboxes are not suitable for positioning applications.

Using shaft sleeve adaptors RV30-K11-D8 or RV30-K11-D6.35 to convert 11mm input diameter to 8mm or 6.35mm.
If you would like to know more about the difference between old and new worm gears, please read this article.
Worm gearboxes are generally recommended to use B3 installation type, if you use other installation types, please contact us for customization.
| Physical Specification | |
| Input Shaft Max. Length | 25mm |
| Matching Motor Type | Nema Size Stepper Motor |
| Gearbox Size | 030 |
| Input Shaft Diameter(mm) | 11 |
| Gear Ratio | 50 |
| Gearbox Type | Worm Gearbox |
| Inventory Method | Dedicated Inventory |