20:1 Worm Gearbox NMRVS50 Worm Gear Speed Reducer 19mm Input Shaft Diameter
from
$73.11
10 or more $67.33
100 or more $62.39
- Model: NMRVS50-G20-D19
- Weight: 3.87kg
Available Options
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Custom Design Options
Select from the customization options below.
The size of this gearbox is 110mmx110mm and the input shaft diameter is 19mm. This worm gearbox is designed for Nema 42 Stepper Motor or other 110mmx110mm 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: NMRVS50-G20-D19
- Gearbox Type: Worm Gearbox
- Gear Material: Alloy Steel
- Gear Ratio: 20:1
- Output Max.Permissible Torque: 70Nm(619.55lb-in)
- Output Max. Radial Load: 2.5kN
- Output Type: Hollow Bore
- Output Bore Diameter: Φ25mm
- Input Shaft Type: Key way
- Input Shaft Diameter: Φ19mm
- Input Shaft Max. Length: 43mm
Note
- Recommend Input Speed <=1500rpm.
- Due to high backlash, worm gearboxes are not suitable for positioning applications.

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 | 43mm |
| Matching Motor Type | Nema Size Stepper Motor |
| Gearbox Size | 050 |
| Input Shaft Diameter(mm) | 19 |
| Gear Ratio | 20 |
| Gearbox Type | Worm Gearbox |
| Inventory Method | Dedicated Inventory |