NMRV90 Worm Gear Reducer 140 for NEMA34
The NMRV90 worm gearbox is a robust and high-performance gear reduction unit designed for demanding industrial and automation applications. Engineered for strength and reliability, it delivers smooth torque transmission with excellent efficiency in heavy-duty systems.
With a 1:40 gear reduction ratio, this gearbox significantly increases torque output while maintaining stable and precise motion control. It is specially designed to work with NEMA 34 stepper motors featuring a 14mm keyed shaft, making it ideal for CNC machines, automation equipment, and robotic systems.
Built with a durable aluminum alloy housing, the NMRV90 ensures long-lasting performance even under continuous load conditions. Its large output bore of 34–35mm allows easy integration with various mechanical assemblies.
Key Features:
Heavy-duty NMRV90 worm gearbox construction
High reduction ratio: 1:40 for increased torque
Compatible with NEMA 34 motors (14mm keyed shaft)
Strong aluminum alloy body for durability
Smooth and quiet operation
Ideal for CNC, automation & industrial machinery
Specifications:
Model: NMRV90
Gear Ratio: 1:40
Motor Compatibility: NEMA 34 (14mm key shaft)
Output Bore: 34–35mm
Dimensions: 23.7 × 20.5 × 13.0 cm









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