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NMRV 75 Gear Box

NMRV 75 Gear Box Specification

Gear Type
Worm Gear

Material
Aluminum Alloy Housing, Hardened Steel Gear

Processing Type
Precision Casting

Gear Tooth Profile
Worm

Gearing Arrangement
Worm

Direction
Bidirectional

Output Torque
380 Nm

Rated Power
Up to 4 kW

Input Speed
1400 rpm

Output Speed
14-186 rpm (Depending on ratio)

Voltage
220V/380V, 3 Phase

Efficiency
Up to 85%

Working Temperature
-10C to 60C

Lubrication
Synthetic Oil

Reduction Ratio
7.5:1 to 100:1

Noise Level
Below 65 dB

Shaft Diameter
28 mm (Standard)

Mounting Type
Flange/Foot Mounted

Protection Grade
IP55

Housing Color
Blue/Grey Painted Finish

About NMRV 75 Gear Box

The Worm Gear Box for Lift is a specially designed gear unit that ensures smooth, safe, and efficient lifting performance. It delivers high torque output with compact design and superior load-holding capacity, making it ideal for lifts, elevators, and material-handling systems.

Built with a precision-engineered worm and wheel mechanism and a rugged cast iron housing, this gear box provides quiet operation, high efficiency, and long service life. Its self-locking feature offers additional safety, preventing reverse motion during lift operations.

Versatile Gearbox with Reliable Performance

The NMRV 75 Gear Box delivers exceptional power transmission and adaptability for industrial applications. Its durable aluminum alloy housing, paired with hardened steel worm gears, ensures long-term reliability and consistent performance. Engineered for both flange and foot mounting, it accommodates diverse installation needs. The gearbox maintains efficient operation-up to 85%-while sustaining low noise levels and withstanding demanding environmental conditions.

Engineered for Efficiency and Safety

With protection grade IP55, the NMRV 75 is protected against dust and water ingress, extending its service life. Operating efficiently with synthetic oil, it supports a broad range of power inputs (up to 4 kW) and voltage options (220V/380V, 3 phase). Its noise-reducing design and precision casting process guarantee not only high performance but also a safer and quieter working environment for users.

FAQ's of NMRV 75 Gear Box:

Q: How is the NMRV 75 Gear Box typically installed?

A: The NMRV 75 Gear Box can be mounted using either the flange-mounted or foot-mounted options, offering flexible installation for various industrial setups.

Q: What maintenance process is recommended for this gearbox?

A: Regularly checking and maintaining synthetic oil levels is crucial for optimal performance. Ensure all seals are intact and inspect for wear or debris every few months for reliable operation.

Q: When is it ideal to use synthetic oil for lubrication?

A: Synthetic oil should be used consistently as specified, as it enhances lubrication, increases efficiency, and extends the lifetime of the gearbox, especially under variable temperature conditions (-10C to 60C).

Q: Where can the NMRV 75 Gear Box be operated safely?

A: This gearbox operates safely in environments with temperatures between -10C and 60C, and its IP55 protection grade ensures resilience against dust and water, making it suitable for most industrial facilities.

Q: What are the benefits of the hardened steel gear and aluminum alloy housing?

A: The hardened steel gears provide excellent wear resistance while the lightweight aluminum alloy housing ensures corrosion protection and improved heat dissipation, leading to a longer service life and reliable performance.

Q: How does the reduction ratio affect the output speed and torque?

A: The reduction ratio, which ranges from 7.5:1 to 100:1, determines the output speed and torque. Lower ratios yield higher output speeds and lower torque, while higher ratios offer lower speeds but greater torque for demanding applications.

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