China OEM Double Worm Gearbox Nmrv063/030 Power Transmission Mechanical sequential gearbox

Product Description

HangZhou CHINAMFG Machinery Co., Ltd.has been specialising in the manufacture and export of RV series worm gearboxes and other power transmission products for years, dedicated to provide to our customers good quality products in competitive prices. The main products are RV series worm gear speed reducers, UD series mechanical speed variators, G3 series helical geared motors and the specially designed reducers for polishing machines. Our products are widely used in the mechanical apparatus for foodstuff, ceramics, package, chemical, printing, and plastics, etc.

Xihu (West Lake) Dis.d by the idea, “Quality is the very key.”. the company proceeds in strict quality control to all the products, complying with the requirements of ISO9001:2008, and certificated, which has enabled our products to have enjoyed the successful sales, popularity and good reputation among the markets of Europe, Mid-east, and Souteast Asia..

Innovation, good quality, customers’ satisfication, and excellent service are the principles of the company. All customers at home and abroad are warmly welcome to contact us and negotiate for mutual business expansion.

Characteristics:
RV series worm gearbox / speed reducer is a new generation of products developed by our company with combination of advanced technology both at home and abroad. It feature in:
1) Aluminium alloy die cast casing for RV 571,030,040,050,063,075,090,light weight and non-rusting;cast iron casing for RV110,130,150.
2) large output torque.
3) stable transmission with lower noise.
4) high geat-radiation efficiency.
5) elegant shape,small volume and durable serving life
6) suitable for omnibearing installation
 
Model & Mark :NMRV 063-40 E F1 AZ B3
 

NMRV NMRV means hole input with flange NRV  means shaft input without flange
063 Distance between the centers of worm and worm gear
40 Speed ratio of worm gear speed reducer
E “E” means double extension worm shaft, no mark means single extension worm shaft
F1 “F” means output flange, “FL” means high output flange,no mark means output without flange
AZ “AZ”means bidirectional output shaft, “GZ”means unilateral output shaft and no mark means hole output
B3 Installation position code

The speed reducer NMRV063/030 Accessories outline dimension

  K1 G KG KH R
NMRV063 150 14 49 10 18

Speed reducer Size of Single Extension & Double extension

  D(h6) B B1 G1 L L1 f b1  t1
NMRV063 25 50 53.5 112 173 219 M10 8 28

Worm gearbox of Double extension worm shaft
 

  G2 d(j6) B F b1 t1
NMRV063 75 19 40 M6 6  21.5

The Worm gearbox NMRV063/030 With Motor

IEC Motor adapters
Model PAM(IEC) N M P ration Shaft:D
 
NMRV030
63B5 95 115 140 7.5 11
63B14 60 75 90 7.5 11
56B5 80 100 120 7.5 9
56B14 50 65 80 7.5 9
NMRV063 90B5 130 165 200 40
90B14 95 115 140    40
80B5 130 165 200 40 19
80B14 80 100 120 40 19
71B5 110 130 160 40 14
71B14 70 85 105 40 14

Worm gearbox of Mounting positions
 
 
Worm gearbox of Position diagram for output flange
 
 
Worm gearbox of position diagram for torque arm
 
Worm gearbox of position diagram for one-way output shaft

 
Notice for ordering:
 
1) when ordering,please refer to the details of the products and tell us the exact type your need according to your requirements,like input speed,output torque,configuration,installation,etc:the installation position of the products in the order should accord with your actual needs,otherwise, it will result in oil leakage, which will impact the serving life of the products negatively.if there is special requirement to the installation position,please stress it and inform us.
 
2) to attain the excellent state of the variators, the common working speed should be chosen in the middle position,instead,it ismot appropriate to choose in the positions of min,or max.speed
 
3) if your requirements of worm gearbox or speed variator are different from shte standard products as in the catalogue,like:some portion that should be customized or mounted with special motors,please inform us in advance

 

Application: Industry
Layout: Cycloidal
Hardness: Hardened
Installation: Vertical Type
Step: Double-Step
Type: Worm and Wormwheel
Customization:
Available

|

Customized Request

worm gearbox

Calculating Gear Ratio in a Worm Reducer

The gear ratio in a worm reducer is determined by the number of teeth on the worm wheel (also known as the worm gear) and the number of threads on the worm shaft. The gear ratio formula for a worm reducer is:

Gear Ratio = Number of Teeth on Worm Wheel / Number of Threads on Worm Shaft

For example, if the worm wheel has 60 teeth and the worm shaft has a single thread, the gear ratio would be 60:1.

It’s important to note that worm reducers have an inherent self-locking property due to the angle of the worm threads. As a result, the gear ratio also affects the mechanical advantage and the system’s ability to resist backdriving.

When calculating the gear ratio, ensure that the worm reducer is properly designed and that the gear ratio aligns with the desired mechanical characteristics for your application. Additionally, consider factors such as efficiency, load capacity, and speed limitations when selecting a gear ratio for a worm reducer.

worm gearbox

How to Calculate the Input and Output Speeds of a Worm Gearbox?

Calculating the input and output speeds of a worm gearbox involves understanding the gear ratio and the principles of gear reduction. Here’s how you can calculate these speeds:

  • Input Speed: The input speed (N1) is the speed of the driving gear, which is the worm gear in this case. It is usually provided by the manufacturer or can be measured directly.
  • Output Speed: The output speed (N2) is the speed of the driven gear, which is the worm wheel. To calculate the output speed, use the formula:

    N2 = N1 / (Z1 * i)

Where:
N2 = Output speed (rpm)
N1 = Input speed (rpm)
Z1 = Number of teeth on the worm gear
i = Gear ratio (ratio of the number of teeth on the worm gear to the number of threads on the worm)

It’s important to note that worm gearboxes are designed for gear reduction, which means that the output speed is lower than the input speed. Additionally, the efficiency of the gearbox, friction, and other factors can affect the actual output speed. Calculating the input and output speeds is crucial for understanding the performance and capabilities of the worm gearbox in a specific application.

worm gearbox

How Does a Worm Gearbox Compare to Other Types of Gearboxes?

Worm gearboxes offer unique advantages and characteristics that set them apart from other types of gearboxes. Here’s a comparison between worm gearboxes and some other common types:

  • Helical Gearbox: Worm gearboxes have higher torque multiplication, making them suitable for heavy-load applications, while helical gearboxes are more efficient and offer smoother operation.
  • Bevel Gearbox: Worm gearboxes are compact and can transmit motion at right angles, similar to bevel gearboxes, but worm gearboxes have self-locking capabilities.
  • Planetary Gearbox: Worm gearboxes provide high torque output and are cost-effective for applications with high reduction ratios, whereas planetary gearboxes offer higher efficiency and can handle higher input speeds.
  • Spur Gearbox: Worm gearboxes have better shock load resistance due to their sliding motion, while spur gearboxes are more efficient and suitable for lower torque applications.
  • Cycloidal Gearbox: Cycloidal gearboxes have high shock load capacity and compact design, but worm gearboxes are more cost-effective and can handle higher reduction ratios.

While worm gearboxes have advantages such as high torque output, compact design, and self-locking capability, the choice between gearbox types depends on the specific requirements of the application, including torque, efficiency, speed, and space limitations.

China OEM Double Worm Gearbox Nmrv063/030 Power Transmission Mechanical   sequential gearbox	China OEM Double Worm Gearbox Nmrv063/030 Power Transmission Mechanical   sequential gearbox
editor by CX 2023-10-24

worm gearbox

As one of leading worm gearbox manufacturers, suppliers and exporters of products, We offer worm gearbox and many other products.

Please contact us for details.

Manufacturer supplier exporter of worm gearbox.

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Gearbox-Worm

As one of gearbox-worm manufacturers, suppliers and exporters of mechanical products, We offer gearbox-worm and many other products.

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Manufacturer supplier exporter of gearbox-worm.