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Nema 23 Worm Gearbox 20:1 NMRV30 Worm Gear Motor Speed Reducer Motor for Nema 23 Stepper Motor

Nema 23 Worm Gearbox 20:1 NMRV30 Worm Gear Motor Speed Reducer Motor for Nema 23 Stepper Motor
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Our Price:$40.16
Quantity:- +

Bulk Price:
Qty.Range(unit) Price(unit) Discount
5 $38.15 5%
10 $37.35 7%
50 $36.14 10%
100 $34.94 13%
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20:1 Worm Gearbox NMRV30 Worm Gear Speed Reducer 9mm Input Shaft Diameter


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. The advantage for this gearbox is efficiency and self-locking. 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.


Gearbox Specifications

Manufacturer Part Number: NMRV30-G20-D9

Gearbox Type: Worm Gearbox

Gear Ratio: 20:1

Efficiency: 73%

Backlash at No-load: <=1°

Output Max.Permissible Torque: 18Nm(159.31lb-in)

Output Max. Radial Load: 0.94kN

Output Type: Hollow Bore

Output Bore Diameter: Φ14mm

Input Shaft Type: Key way

Input Shaft Diameter: Φ9mm

Input Shaft Max. Length: 25mm


Please note:

The output shaft is available, please contact our technical support for your requirements.

The gear ratios available for this gearbox are: 5:1, 7.5:1, 10:1, 15:1, 20:1, 25:1, 30:1, 40:1, 50:1, 60:1, 80:1 and 100:1.

Due to their relatively high backlash (1°), worm gearboxes are not suitable for positioning applications.



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Physical Specification
Frame Size(mm) Nema 23 (57 x 57)
Input Shaft Diameter(mm) 9mm
Gear Ratio 20
Input Shaft Max. Length 25mm
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