Nmrv Worm Gear Units

Product Overview

Nmrv series worm gear reducer (Nmrv Worm Gear Units) adopts a double-pitch worm + bronze worm gear precision meshing structure, with a rated output torque ranging from 1.3N·m to 879N·m, and is suitable for 0.06kW-15kW motor power. This series of Worm Gear Units is characterized by right-angle output and compact design. It is designed to provide cost-effective transmission solutions for medium and low loads and intermittent operation scenarios such as food machinery, automatic door control, and packaging production lines. It supports 24-hour continuous working conditions (S5 working system) and has a protection level of IP55.

Product Features

Right-angle transmission efficiency optimization

Worm surface hardness HRC45-50, worm wheel tin bronze material, single-stage transmission efficiency ≥85% (speed ratio 10-100).

Compact and lightweight design

Aluminum alloy housing, the weight of the whole machine is 35% lower than that of cast iron material, and the volume is reduced by 40%.

Bidirectional self-locking function

Mechanical self-locking is achieved when the speed ratio is ≥30, and the vertical load safety factor is ≥2.5 times.

Flexible installation adaptation

Supports 6 assembly modes including input shaft double-side extension and flange inverted installation.

Silent wear-resistant technology

Worm gear tooth surface is mirror polished, and the operating noise is ≤55dB (test distance 1 meter).

Product advantages

Lifetime oil change-free: fully enclosed grease lubrication system, maintenance cycle > 20,000 hours

Global voltage adaptation: optional single-phase 220V/three-phase 380V/415V, 50/60Hz universal

High cost performance: cost is 40% lower than planetary reducer, delivery time is shortened to 5 working days

Customization flexibility: input shaft keyway, flange hole position and special coating (PTFE/epoxy resin) can be customized

Typical application scenarios

Nmrv Worm Gear Units are widely used in the following fields:

Food processing equipment: mixer, slicer, filling line conveyor belt drive

Intelligent security system: gate lift, revolving door central control drive

Medical equipment: bed lifting mechanism, precision positioning of testing instruments

Environmental protection equipment: water treatment valve control, exhaust gas purification device drive

FAQ High-frequency technical questions and answers

Q1: Is the self-locking function of the worm gear reducer absolutely reliable?

The self-locking function is effective under static load, and dynamic load requires additional braking device (recommended safety factor ≥1.5).

Q2: How to choose the appropriate grease?

NLGI grade 2 lithium-based grease (operating temperature -20℃~120℃) is recommended, and relubrication is required after the first 500 hours of operation.

Q3: Can the input shaft be connected to a servo motor?

Yes, a customized flange interface (IEC standard or NEMA standard) is required and an elastic coupling is configured to reduce radial load.

Q4: How to quickly replace the worm gear after it is worn?

With a modular design, the worm gear assembly can be replaced within 10 minutes without disassembling the entire machine (O-ring sealing kit is provided).