RV Worm gear speed reducer 50ratio for building equipment gearbox cover


Quick Details

Place of Origin:

Zhejiang, China

Brand Name:


Gearing Arrangement:


Output Torque:


Input Speed:


Output Speed:


Applicable Industries:

Building Material Shops, Manufacturing Plant, Food & Beverage Factory, Farms, Printing Shops, Construction works, Energy & Mining, Food & Beverage Shops, Advertising Company

Model Number:

RV series worm gearbox

Gear ratio:

7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100

Toothed Portion Shape:

Spur Gear


Metal Gears

Manufacturing method of gear:

Cast Gear


Silver or Blue

Mount Position:

Flange Mounted


Converyors, Packaging, Loading, Automation


One Year


Wooden Box

Supply Ability

Supply Ability:
1000 Set/Sets per Week

Packaging & Delivery

Packaging Details
Strong wooden case and pallets for gear reducer
Picture Example:
Lead Time
Quantity(Sets) 1 – 200 >200
Est. Time(days) 15 To be negotiated

Online Customization

RV Worm gear speed reducer for building equipment gearbox cover

Product Description

RV worm Reduction Box

Ordering Information
When buying a RV worm gearbox, please note the following:

>You need to consider the following parameters: such as reduction gear ratio and frame size.
>Select the right input power of reducer. It depends on output torque and rotation speed of reducer.
>Select the right model of reducer and combined reduction gear units. It should not exceed 1400 RPM input speed.
>If you need a gearbox with higher input speed, specify the requirements in your order.
>Specify the parameters such as gear teeth clearance and operating conditions when placing your order.
>When you select combined worm gear worm speed reducer and step-less speed variation, the output rotation speed will be better in the middle stage of variable rotation speed limits.
>It is recommended to select a standardized model.
>If you order worm gear of size 110 to 150, you must make mounting positions of the reducer for installing a pressure reducer to avoid oil leakage.

Make sure to mention your order quantity, expected price, and packing requirements, among others.


1.RV Worm Gearbox/NMRV Worm Gearbox
2.The RV series, featuring a worm wheel set, is available in two versions NRV (worm reduction unit) and NMRV (mounting with motor).
3.Size (center distance): 25, 30, 40, 50, 63, 75, 90, 110, 130
4.Power transmitted from 0.06KW to 15KW
5.Extensive range of ratio: ratio of a single-stage reducer is from 5 to 1 until 100 to 1, ratio of a double-stage reducer is up to 5000 to 1
6.It has small gear teeth clearance and low noise. It can be connected to a servo (stepper) motor.
7.Aluminum die-casting alloy case, lightweight, high strength, and distributes heat easily.
8.The teeth of worm gear are made of highly durable copper alloy. But, the worm is made of carbon carburizing (40Cr or 20CrMnTi) steel alloy. The teeth of the worm have been quenched and ground to increase their life.
9.The operation is simple as five sides of the reducer can be used to installation.
10.The cases of frame sizes from 25 to 90 are made of aluminium die. But, the cases of frame sizes from 90 to 150 are made of iron die casting.
11.The wheel axle is made of forged steel casting. However, the teeth of worm gear are made of wear-resisting bronze alloy.
12.Lubricant: synthetic oil (25 to 90) and mineral oil (110 to 150).
13.Bearing: trademark HRB/HRE/NSK
14.The surface of the aluminium alloy case is sprayed with steel pill treatment first, and then spray painted and finally given a baking finish treatment.

15.The colour is blue or silver.

Outline Drawing over View

RV Series Worm Gearbox Design:

Please read before use:
1. Load condition
2. Speed of rotationi or speed ratio (combination with combine speed reducer can get extra low outputing rotational speed)
3. Work circumstance (temperature, humidity, corrosion etc.)
4. Space of installation

Packaging & Shipping

Packaging Details
1.Inside :Plastic bags with Chemical Desiccant For Gear Housing
2.Middle :Individual Carton packaging
3. Outside :Wooden Box

Our Services

A satisfying one-stop service comes from our continuous innovation team and our rigorously-inspected sub-contracters!
Our products are widely applied to machine tools, industrial robot,textile machine,packing machine,food machine, medical appliance,CNC system and air condition and so on!

Company Information

Zhengzhou Lunyee Industries Development Co., Ltd. is a leading manufacturer for factory automation(FA) products!We are dedicated in power transmission and motion control solutions!
We manufacture power transmission products like AC and DC(brush/brushless) gear motor,high precision planetary gearbox(spur/helical gear)for servo motor and stepping motor,linear motion products like linear bushing,linear guide, ball screw,locking nut and coupling and so on!


1. Q: What’s type of your company.
A: We are manufacturer.
2. Q: what should I provide when I choose gearbox/speed reducer?
A: 1) load condition
2) speed of rotation or speed ratio(combination with combine speed reducer can get extra low out putting rotational speed)
3) work circumstance(temperature, humidity,corrosion etc.)
4) space of installation
3. Q: How long dose it take to finish my order?
A: It depends on your quantity.
4. Q: How can i know the process of my order?
A: Detailed picture of the production process will be sent to you to confirm before shipping.
Consummation QC system makes it possible to offer you reliable quality

5. Q: When is the best time to contact you?

A: Any time,7 days,24 hours constantly on duty.Contact us: sales002 @lunyee.net ,P:86-13223091060

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Worm gearbox

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