You are here: Home / Products / Electric Motor Gear Motor Speed Reducer / RV Series Worm Gearbox / RV Series Worm Gear Reducer

RV Series Worm Gear Reducer

Share to:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
kakao sharing button
snapchat sharing button
telegram sharing button
sharethis sharing button
This series reducer features a high-quality aluminum alloy die-casting box, with excellent heat dissipation, strong load-bearing capacity, multiple installation forms, small volume, light weight, smooth transmission, low noise, safe and reliable, economical and durable. It is widely used in textile, food, beer and beverage, chemical industry, escalator, automation, metallurgy, tobacco, environmental protection, logistics and other industries. There are 10 types of center distances ranging from 25mm to 150mm.
Availability:
Quantity:

Technical Parameters

Input power

0.09kw~15kw

Output torque

2.3N.m~900N.m

Transmission ratio

5~100

Price

150~9000 yuan


6f260621be4c8c0b748254af9903a407_9fd35606ea9a0b17 1755916458782 1755916709218 1755916748756
1755917237732 1755917256766 1755917392835 1755918048651
1755918074022 IMG_20170114_092407 NMRV减速机 NMRV减速机1
NMRV减速机3 NMRV减速机5 O1CN019EGknr1buUdQ7MfkP_!!3311433525.jpg_q90 双级不带电机
双级不带电机2 双级带电机 双级带电机2 微信图片_20220512154016


What is the Self-locking Function of a Reducer?

What is the self-locking function? Any object has a friction angle. When the direction of the resultant external force on the object is within the friction angle, no matter how large the force is, the object will not be displaced. This is called self-locking.

So what is the principle of self-locking?

The principle is: when the lead angle of the worm is less than the equivalent friction angle between the meshing gear teeth, the mechanism has self-locking properties and can achieve reverse self-locking, meaning it can only be driven by the worm driving the worm wheel, and not by the worm wheel driving the worm. For example, the self-locking worm mechanism used in heavy machinery can provide safety protection through its reverse self-locking property.

S Series Reducers:

1. S series helical gear-worm reducers have high technological content, combining helical gears for integrated transmission, improving the machine's torque and efficiency. This product series has complete specifications, wide speed range, good versatility, adapts to various installation methods, and is safe, reliable, and long-lasting, meeting international standard requirements.

2. The concave-convex surface of the body has a heat dissipation effect, strong vibration absorption, low temperature rise, and low noise.

3. The machine has good sealing performance and strong adaptability to working environments.

4. The machine has high transmission precision, especially suitable for working in situations with frequent starts, can connect to various types of reducers and be configured with various types of motor drives, and can be installed in 90-degree transmission operating positions.

5. Key components of this motor use high wear-resistant materials and have undergone special heat treatment, featuring high machining precision, smooth transmission, small size, large load capacity, and long service life.

6. The reducer can be configured with various types of motors, forming mechatronic integration, completely ensuring the product's quality characteristics.


Advantages and Disadvantages of Ordinary Worm Gear Reducers

Worm gear reducers, as a traditional transmission device, have internal worm gears with involute tooth profiles.

Their advantages include: long service life, allowing for very low input speed ranges, and a large reduction range. They have a self-locking function, making them suitable for lifting operations such as elevators and hoists, where worm gear reducers are indispensable.

Their disadvantages are: low working efficiency, which can only reach between 60% and 70%. Additionally, worm gears typically output through shafts. It is difficult to control backlash, especially after the worm and worm wheel have been in operation for a long time, as the backlash tends to become relatively large.


What is the Self-locking Function of a Reducer?

What is the self-locking function? Any object has a friction angle. When the direction of the resultant external force on the object is within the friction angle, no matter how large the force is, the object will not experience displacement. This is called self-locking.

So what is the principle of self-locking?

The principle is: when the lead angle of the worm is less than the equivalent friction angle between the meshing gear teeth, the mechanism has self-locking properties, achieving reverse self-locking, meaning only the worm can drive the worm wheel, but the worm wheel cannot drive the worm. For example, the self-locking worm mechanism used in lifting machinery can provide safety protection through its reverse self-locking property.

NMRV (Worm Gear) Reducer Structural Features:

1. It can achieve a large transmission ratio and is more compact than crossed helical gear mechanisms.

2. The meshing tooth surfaces between the two wheels are in line contact, with load-bearing capacity significantly higher than crossed helical gear mechanisms.

3. Worm transmission is equivalent to screw transmission, being a multi-tooth meshing transmission, thus providing smooth transmission, very low noise, and self-locking properties.

When the lead angle of the worm is less than the equivalent friction angle between the meshing gear teeth, the mechanism has self-locking properties, achieving reverse self-locking, meaning only the worm can drive the worm wheel, but the worm wheel cannot drive the worm. For example, the self-locking worm mechanism used in lifting machinery can provide safety protection through its reverse self-locking property.

Not all worm gear reducers have good self-locking functions. The self-locking function of worm gears can only be achieved when a certain speed ratio is reached. This is related to the lead angle, meaning that worm gears with small speed ratios do not have ideal self-locking functions.


Previous: 
Next: 
German Grade, Commanded by Lashing 
With 70 Years of Precision Transmission Excellence, Powering Global Industrial Development.

Quick Links

Contact Us
 Tel: +86-22-88692627
 Phone: +86-15522761945
 E-Mail: cnlashing@163.com
 WhatsApp: +8615522761945
Address
 Inside the Industrial Park, Dongqi Street, Jinwei Road, Yixingbu Town, Beichen District, Tianjin, China.
 
 Room 1607, China Overseas Building, Intersection of Heiniucheng Road and Neijiang Road, Hexi District, Tianjin, China.
Copyright 2025 Tianjin Lashing Drive Equipment Manufacturer Co., Ltd. All Rights Reserved. Sitemap | Privacy Policy