NMRV aluminum worm gear electric motor speed reducer gearbox

Model Number: NMRV 025
Gearing Arrangement: Worm
Output Torque: 1-20
Rated Power: 0.25-0.95KW
Input Speed: 1400-3200
House: Alloy
Packaging Details: PP+bag +Carton +Wooden box( We will follow costomer demanded).
Port: Ningbo

NMRV aluminum worm gear electric motor speed reducer gearbox Product summary
NMRV series worm gear reducer is a new generation of products combining the international advanced technology based on the original WP series products. It adopts advanced square box structure, high quality die-casted Aluminum alloy. It has small volume, light weight, high strength, and heat dissipation, attractive and durable.
The reducer has big output torque, smooth transmission and low noise, it adopts all-closed structure, good sealing, free of maintenance, can adapt to comprehensive installation.

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Versions

NMRV Model & Marker

NMRV-075-60-vs-F1(FA)-AS-80B5-0.55kw-B3
NMRV Worm geared motor
NRV Worm reduction unit
075 Center distance
60 Reduction ratio
VS Double input shaft F1(FA) Output flange
AS Single output shaft AB Double output shaft
PAM Fitted for motor coupling 80B5 Motor mounting facility
0.55 KW Electric motor power B3

Demention For NMRV025 worm gear speed reducer

Mounting Positons For NMRV worm gear speed reducer

predisposition

Flange F-FL

position of output shaft

Double extersion worm shaft & 84299353 Bevel Gear 1632T Suitable for Case Tractor parts 580N 580SN 590SN Position of torque arm

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Company Information
FAQ

Solution and reason for the general faults of reducer

Fault description Reasons Solutions
Overheating Overloading
Insufficient oil
Inferior oil
Bad rejection of heat of the enclosure
Adjust loading or select large unit
Fill in adequate oil
Fill in proper oil
Clean the surface of the enclosure
Noise Poor fit between gear and shaft
Worn wheel over-damaged
Bearing damaged or clearance too large
Insufficient oil
Invaded by foreign objects
Finish the surface of worn-gear
Replace worm
Replace bearing
Fill in adequate oil
Remove foreign objects and replace oil
Worm wheel
over-damaged
Over loading
Insufficient oil
Inferior oil
Adjust loading or select large unit
Fill in adequate oil
Replace proper oil
Oil leakage Oil seal damaged
Gasket damaged
Excess oil
Oil filler Loosed
Oil-level plug damaged
Replace oil seal
Replace gasket
Adjust quantity of oil
Tighten oil filler
Replace oil-level plug

Service factor
The service factor (f.s.) depends on the operating conditions the gearbox is subjected to. Following parameters need to be takes select the right service factor:
–type of load of the operating machine A-B-C
–length of daily operating time: hours/day (Δ)
–start-up frequency: starts/hour (*)
Type of load: A- uniform, fa≤0.3
B-moderate shocks, fa≤3
C-heavy shocks, fa≤10

Installation notes
–The mounting on the machine must be stable to avoid any vibration.
–Check the correct direction of rotation of the reduction unit output shaft before fitting the unit to the machine.
–In the case of particularly lengthy of storage (4-6 months) if the oil seal is not immersed in the lubricant inside recommended changing it since the rubber could stick to the shaft or even has lost the elasticity it needs to function prober.
–For a shaft mounting, for reduction units with a hollow output shafts, use the torque arms motion clinic can supply. If it is make sure that the constraint is axially free and with such as play as to ensure free movement to the reduction unit.
–Whenever possible, protect the reduction unit against solar radiation and bad weather.
–Ensure the motor cools correctly by assuring good passage of air from the fan side.
–In the case of ambient temperatures< Highly-Modular Parallel Shaft Helical-Gear Reducer Box -5°C and >+40°C contact motion clinic.
–The various parts (pulleys, gear wheels, couplings, shaft, etc.) must be mounted on the solid or hollow shafts using special holes or other systems that anyhow ensure correct operation with-out risking damage to the bearing or external parts of the unit.
–Painting must definitely not go over rubber parts and the holes on the breather plugs, if there are any.
–Taking out the seal embolism of the oil hole.
–Check the height of the oil level.
–Supposing the gear units have not coupled with the motor, please pay attention to the following items to make sure rightly connection. To mounting as the B5, B1.
–Check the whether the tolerance between the shaft and motor flange fit for the essential standard.
–Washing the dirt and the paint on the surfaces of the shaft, center bore and the flange.
–Mounting avoid the gear unit incur strength.
–Check the position and the deviation of the motor key slot.
–Lubricate the surface in contact to avoid seizure or oxidation.
–Starting must take place gradually, agricultural drone sprayer agriculture spray drone spraying with battery parts spare without immediately applying the maximum load.
–When there are parts objects or materials under the motor drive that can be damaged by even limited spillage of oil, special should be fitted.