China Power Transmission Worm Gearbox Ratio 5 to 100 double enveloping worm gearbox

Merchandise Description

RV Series Worm Gear Bins Gearbox Pace Reducer with Electrical Motors

Input Configurations

Double or one input shaft (NRV)

Round Enter Flange for IEC B5/B14 motor (NMRV)

  Square Enter Flange for Servo Motor (NMRV) 

Output Configurations

 

Double Output Shaft (AB) or Single Output Shaft (AS)

Output flange

Specification

Design

Motor Enter Flange (circle)

Transmission Ratio

Electrical power

(kw)

Ratio

(i)

Nominal Torque

(Nm)

PAM / IEC

Inner Dia.

Dis. Between Diagonal Screw Holes

Exterior Dia.

Width of Important Slot

5

7.five

ten

15

twenty

twenty five

30

forty

50

sixty

eighty

one hundred

N

M

P

E

Diamter of Input Shaft

NMRV25

56B14

fifty

sixty five

80

3

9

9

.06

7.5-60

two.6-fourteen

NMRV30

63B5

ninety five

115

a hundred and forty

4

11

.06-.18

seven.5-eighty

two.6-14

63B14

60

75

90

56B5

eighty

one hundred

a hundred and twenty

three

9

56B14

fifty

sixty five

eighty

NMRV40

71B5

one hundred ten

a hundred thirty

one hundred sixty

5

fourteen

.09-.37

7.5-100

11-fifty three

71B14

70

eighty five

one hundred and five

63B5

95

one hundred fifteen

140

4

11

63B14

60

seventy five

90

56B5

80

a hundred

120

3

9

NMRV50

80B5

one hundred thirty

165

200

six

19

.twelve-.75

seven.5-100

21-89

80B14

80

a hundred

a hundred and twenty

71B5

110

a hundred thirty

one hundred sixty

5

fourteen

71B14

70

85

one hundred and five

63B5

95

a hundred and fifteen

a hundred and forty

four

11

NMRV63

90B5

a hundred thirty

165

200

8

24

.twenty five-1.five

7.5-100

fifty six-166

90B14

95

one hundred fifteen

140

80B5

a hundred thirty

a hundred sixty five

200

6

19

80B14

80

one hundred

120

71B5

a hundred and ten

130

a hundred and sixty

5

fourteen

71B14

70

85

a hundred and five

NMRV75

one hundred/112B5

180

215

250

eight

28

.fifty five-four

seven.5-one hundred

ninety-269

a hundred/112B14

a hundred and ten

130

160

90B5

a hundred thirty

a hundred sixty five

200

8

24

90B14

95

a hundred and fifteen

one hundred forty

80B5

a hundred thirty

165

two hundred

6

19

80B14

eighty

a hundred

120

71B5

a hundred and ten

one hundred thirty

a hundred and sixty

fourteen

NMRV90

100/112B5

180

215

250

8

28

.55-4

seven.5-a hundred

a hundred and one-458

one hundred/112B14

a hundred and ten

one hundred thirty

one hundred sixty

90B5

130

one hundred sixty five

200

8

24

90B14

95

a hundred and fifteen

140

80B5

one hundred thirty

a hundred sixty five

200

six

19

80B14

80

a hundred

a hundred and twenty

NMRV110

132B5

230

265

three hundred

ten

38

1.1-7.five

seven.5-100

242-660

132B14

one hundred thirty

one hundred sixty five

200

a hundred/112B5

a hundred and eighty

215

250

eight

28

90B5

a hundred thirty

one hundred sixty five

two hundred

24

90B14

ninety five

one hundred fifteen

140

80B5

130

one hundred sixty five

200

19

 NMRV130 

132B5

230

265

300

10

 – 

38

 – 

 2.2-7.5 

 7.5-100 

 333-1596 

132B14

130

one hundred sixty five

two hundred

100/112B5

one hundred eighty

215

250

8

28

90B5

one hundred thirty

165

200

24

90B14

95

one hundred fifteen

a hundred and forty

NMRV150

160B5

250

three hundred

350

12

forty two

two.2-fifteen

seven.5-a hundred

570-1760

132B5

230

265

300

ten

38

132B14

one hundred thirty

one hundred sixty five

two hundred

a hundred/112B5

a hundred and eighty

215

250

eight

28

Company profile

FAQ

Q1: I want to purchase your goods, how can I shell out?
A: You can pay out by way of T/T(thirty%+70%), L/C ,D/P and many others. 

Q2: How can you promise the quality?
A: A single year’s guarantee in opposition to B/L date. If you meet up with with high quality difficulty, please deliver us images or online video to check, we assure to ship spare areas or new items to exchange. Our ensure not include inappropriate procedure or wrong specification assortment. 

Q3: How we select versions and specs?
A: You can e mail us the sequence code (for instance: RC collection helical gearbox) as properly as prerequisite details, such as motor energy,output speed or ratio, service element or your software…as a lot data as achievable. If you can supply some pictures or drawings,it is nice. 

This fall: If we will not discover what we want on your web site, what ought to we do?
A: We offer 3 choices:
one, You can e-mail us the photographs, drawings or descriptions particulars. We will consider to style your merchandise on the basis of our
common models.
two, Our R&D department is skilled for OEM/ODM products by drawing/samples, you can send us samples, we do custom-made design and style for your bulk acquiring.
three, We can build new products if they have excellent industry. We have already produced a lot of products for particular employing effective, these kinds of as special gearbox for agitator, cement conveyor, sneakers equipment and so on. 

Q5: Can we purchase 1 laptop of each and every merchandise for top quality testing?
A: Indeed, we are happy to accept trial get for top quality screening.

Q6: How about your solution delivery time?
A: Usually for 20’container, it requires twenty five-thirty workdays for RV collection worm gearbox, 35-forty workdays for helical gearmotors.

US $18-35
/ Piece
|
20 Pieces

(Min. Order)

###

Application: Motor, Machinery, Agricultural Machinery, Material Handling Machines
Hardness: Hardened Tooth Surface
Installation: B3, B6, B7, B8, V5, V6
Step: Single-Step
Type: Worm Reducer
Rated Power: 0.12 Kw

###

Customization:

###

Input Configurations
Double or single input shaft (NRV)
Round Input Flange for IEC B5/B14 motor (NMRV)
  Square Input Flange for Servo Motor (NMRV) 
Output Configurations
 
Double Output Shaft (AB) or Single Output Shaft (AS)
Output flange

###

Model
Motor Input Flange (circle)
Transmission Ratio
Power
(kw)
Ratio
(i)
Nominal Torque
(Nm)
PAM / IEC
Internal Dia.
Dis. Between Diagonal Screw Holes
External Dia.
Width of Key Slot
5
7.5
10
15
20
25
30
40
50
60
80
100
N
M
P
E
Diamter of Input Shaft
NMRV25
56B14
50
65
80
3
9
9
0.06
7.5-60
2.6-14
NMRV30
63B5
95
115
140
4
11
0.06-0.18
7.5-80
2.6-14
63B14
60
75
90
56B5
80
100
120
3
9
56B14
50
65
80
NMRV40
71B5
110
130
160
5
14
0.09-0.37
7.5-100
11-53
71B14
70
85
105
63B5
95
115
140
4
11
63B14
60
75
90
56B5
80
100
120
3
9
NMRV50
80B5
130
165
200
6
19
0.12-0.75
7.5-100
21-89
80B14
80
100
120
71B5
110
130
160
5
14
71B14
70
85
105
63B5
95
115
140
4
11
NMRV63
90B5
130
165
200
8
24
0.25-1.5
7.5-100
56-166
90B14
95
115
140
80B5
130
165
200
6
19
80B14
80
100
120
71B5
110
130
160
5
14
71B14
70
85
105
NMRV75
100/112B5
180
215
250
8
28
0.55-4
7.5-100
90-269
100/112B14
110
130
160
90B5
130
165
200
8
24
90B14
95
115
140
80B5
130
165
200
6
19
80B14
80
100
120
71B5
110
130
160
14
NMRV90
100/112B5
180
215
250
8
28
0.55-4
7.5-100
101-458
100/112B14
110
130
160
90B5
130
165
200
8
24
90B14
95
115
140
80B5
130
165
200
6
19
80B14
80
100
120
NMRV110
132B5
230
265
300
10
38
1.1-7.5
7.5-100
242-660
132B14
130
165
200
100/112B5
180
215
250
8
28
90B5
130
165
200
24
90B14
95
115
140
80B5
130
165
200
19
 NMRV130 
132B5
230
265
300
10
 – 
38
 – 
 2.2-7.5 
 7.5-100 
 333-1596 
132B14
130
165
200
100/112B5
180
215
250
8
28
90B5
130
165
200
24
90B14
95
115
140
NMRV150
160B5
250
300
350
12
42
2.2-15
7.5-100
570-1760
132B5
230
265
300
10
38
132B14
130
165
200
100/112B5
180
215
250
8
28
US $18-35
/ Piece
|
20 Pieces

(Min. Order)

###

Application: Motor, Machinery, Agricultural Machinery, Material Handling Machines
Hardness: Hardened Tooth Surface
Installation: B3, B6, B7, B8, V5, V6
Step: Single-Step
Type: Worm Reducer
Rated Power: 0.12 Kw

###

Customization:

###

Input Configurations
Double or single input shaft (NRV)
Round Input Flange for IEC B5/B14 motor (NMRV)
  Square Input Flange for Servo Motor (NMRV) 
Output Configurations
 
Double Output Shaft (AB) or Single Output Shaft (AS)
Output flange

###

Model
Motor Input Flange (circle)
Transmission Ratio
Power
(kw)
Ratio
(i)
Nominal Torque
(Nm)
PAM / IEC
Internal Dia.
Dis. Between Diagonal Screw Holes
External Dia.
Width of Key Slot
5
7.5
10
15
20
25
30
40
50
60
80
100
N
M
P
E
Diamter of Input Shaft
NMRV25
56B14
50
65
80
3
9
9
0.06
7.5-60
2.6-14
NMRV30
63B5
95
115
140
4
11
0.06-0.18
7.5-80
2.6-14
63B14
60
75
90
56B5
80
100
120
3
9
56B14
50
65
80
NMRV40
71B5
110
130
160
5
14
0.09-0.37
7.5-100
11-53
71B14
70
85
105
63B5
95
115
140
4
11
63B14
60
75
90
56B5
80
100
120
3
9
NMRV50
80B5
130
165
200
6
19
0.12-0.75
7.5-100
21-89
80B14
80
100
120
71B5
110
130
160
5
14
71B14
70
85
105
63B5
95
115
140
4
11
NMRV63
90B5
130
165
200
8
24
0.25-1.5
7.5-100
56-166
90B14
95
115
140
80B5
130
165
200
6
19
80B14
80
100
120
71B5
110
130
160
5
14
71B14
70
85
105
NMRV75
100/112B5
180
215
250
8
28
0.55-4
7.5-100
90-269
100/112B14
110
130
160
90B5
130
165
200
8
24
90B14
95
115
140
80B5
130
165
200
6
19
80B14
80
100
120
71B5
110
130
160
14
NMRV90
100/112B5
180
215
250
8
28
0.55-4
7.5-100
101-458
100/112B14
110
130
160
90B5
130
165
200
8
24
90B14
95
115
140
80B5
130
165
200
6
19
80B14
80
100
120
NMRV110
132B5
230
265
300
10
38
1.1-7.5
7.5-100
242-660
132B14
130
165
200
100/112B5
180
215
250
8
28
90B5
130
165
200
24
90B14
95
115
140
80B5
130
165
200
19
 NMRV130 
132B5
230
265
300
10
 – 
38
 – 
 2.2-7.5 
 7.5-100 
 333-1596 
132B14
130
165
200
100/112B5
180
215
250
8
28
90B5
130
165
200
24
90B14
95
115
140
NMRV150
160B5
250
300
350
12
42
2.2-15
7.5-100
570-1760
132B5
230
265
300
10
38
132B14
130
165
200
100/112B5
180
215
250
8
28

What is a worm gear reducer gearbox?

A worm gear reducer gearbox is a mechanical device that uses a worm gear and a worm to reduce the speed of a rotating shaft. The gear reducer gearbox can increase the output torque of the engine according to the gear ratio. This type of gear reducer gearbox is characterized by its flexibility and compact size. It also increases the strength and efficiency of the drive.
worm reducer

Hollow shaft worm gear reducer gearbox

The hollow shaft worm gear reducer gearbox is an additional output shaft connecting various motors and other gearboxes. They can be installed horizontally or vertically. Depending on size and scale, they can be used with gearboxes from 4GN to 5GX.
Worm gear reducer gearboxes are usually used in combination with helical gear reducer gearboxes. The latter is mounted on the input side of the worm gear reducer gearbox and is a great way to reduce the speed of high output motors. The gear reducer gearbox has high efficiency, low speed operation, low noise, low vibration and low energy consumption.
Worm gear reducer gearboxes are made of hard steel or non-ferrous metals, increasing their efficiency. However, gears are not indestructible, and failure to keep running can cause the gear oil to rust or emulsify. This is due to moisture condensation that occurs during the operation and shutdown of the reducer gearbox. The assembly process and quality of the bearing are important factors to prevent condensation.
Hollow shaft worm gear reducer gearboxes can be used in a variety of applications. They are commonly used in machine tools, variable speed drives and automotive applications. However, they are not suitable for continuous operation. If you plan to use a hollow shaft worm gear reducer gearbox, be sure to choose the correct one according to your requirements.

Double throat worm gear

Worm gear reducer gearboxes use a worm gear as the input gear. An electric motor or sprocket drives the worm, which is supported by anti-friction roller bearings. Worm gears are prone to wear due to the high friction in the gear teeth. This leads to corrosion of the confinement surfaces of the gears.
The pitch diameter and working depth of the worm gear are important. The pitch circle diameter is the diameter of the imaginary circle in which the worm and the gear mesh. Working depth is the maximum amount of worm thread that extends into the backlash. Throat diameter is the diameter of the circle at the lowest point of the worm gear face.
When the friction angle between the worm and the gear exceeds the lead angle of the worm, the worm gear is self-locking. This feature is useful for lifting equipment, but may be detrimental to systems that require reverse sensitivity. In these systems, the self-locking ability of the gears is a key limitation.
The double throat worm gear provides the tightest connection between the worm and the gear. The worm gear must be installed correctly to ensure maximum efficiency. One way to install the worm gear assembly is through a keyway. The keyway prevents the shaft from rotating, which is critical for transmitting torque. Then attach the gear to the hub using the set screw.
The axial and circumferential pitch of the worm gear should match the pitch diameter of the larger gear. Single-throat worm gears are single-threaded, and double-throat worm gears are double-throat. A single thread design advances one tooth, while a double thread design advances two teeth. The number of threads should match the number of mating gears.
worm reducer

Self-locking function

One of the most prominent features of a worm reducer gearbox is its self-locking function, which prevents the input and output shafts from being interchanged. The self-locking function is ideal for industrial applications where large gear reduction ratios are required without enlarging the gear box.
The self-locking function of a worm reducer gearbox can be achieved by choosing the right type of worm gear. However, it should be noted that this feature is not available in all types of worm gear reducer gearboxes. Worm gears are self-locking only when a specific speed ratio is reached. When the speed ratio is too small, the self-locking function will not work effectively.
Self-locking status of a worm reducer gearbox is determined by the lead, pressure, and coefficient of friction. In the early twentieth century, cars had a tendency to pull the steering toward the side with a flat tire. A worm drive reduced this tendency by reducing frictional forces and transmitting steering force to the wheel, which aids in steering and reduces wear and tear.
A self-locking worm reducer gearbox is a simple-machine with low mechanical efficiency. It is self-locking when the work at one end is greater than the work at the other. If the mechanical efficiency of a worm reducer gearbox is less than 50%, the friction will result in losses. In addition, the self-locking function is not applicable when the drive is reversed. This characteristic makes self-locking worm gears ideal for hoisting and lowering applications.
Another feature of a worm reducer gearbox is its ability to reduce axially. Worm gears can be double-lead or single-lead, and it is possible to adjust their backlash to compensate for tooth wear.

Heat generated by worm gears

Worm gears generate considerable amounts of heat. It is essential to reduce this heat to improve the performance of the gears. This heat can be mitigated by designing the worms with smoother surfaces. In general, the speed at which worm gears mesh should be in the range of 20 to 24 rms.
There are many approaches for calculating worm gear efficiency. However, no other approach uses an automatic approach to building the thermal network. The other methods either abstractly investigate the gearbox as an isothermal system or build the TNM statically. This paper describes a new method for automatically calculating heat balance and efficiency for worm gears.
Heat generated by worm gears is a significant source of power loss. Worm gears are typically characterized by high sliding speeds in their tooth contacts, which causes high frictional heat and increased thermal stresses. As a result, accurate calculations are necessary to ensure optimal operation. In order to determine the efficiency of a gearbox system, manufacturers often use the simulation program WTplus to calculate heat loss and efficiency. The heat balance calculation is achieved by adding the no-load and load-dependent power losses of the gearbox.
Worm gears require a special type of lubricant. A synthetic oil that is non-magnetic and has a low friction coefficient is used. However, the oil is only one of the options for lubricating worm gears. In order to extend the life of worm gears, you should also consider adding a natural additive to the lubricant.
Worm gears can have a very high reduction ratio. They can achieve massive reductions with little effort, compared to conventional gearsets which require multiple reductions. Worm gears also have fewer moving parts and places for failure than conventional gears. One disadvantage of worm gears is that they are not reversible, which limits their efficiency.
worm reducer

Size of worm gear reducer gearbox

Worm gear reducer gearboxes can be used to decrease the speed of a rotating shaft. They are usually designed with two shafts at right angles. The worm wheel acts as both the pinion and rack. The central cross section forms the boundary between the advancing and receding sides of the worm gear.
The output gear of a worm gear reducer gearbox has a small diameter compared to the input gear. This allows for low-speed operation while producing a high-torque output. This makes worm gear reducer gearboxes great for space-saving applications. They also have low initial costs.
Worm gear reducer gearboxes are one of the most popular types of speed reducer gearboxes. They can be small and powerful and are often used in power transmission systems. These units can be used in elevators, conveyor belts, security gates, and medical equipment. Worm gearing is often found in small and large sized machines.
Worm gears can also be adjusted. A dual-lead worm gear has a different lead on the left and right tooth surfaces. This allows for axial movement of the worm and can also be adjusted to reduce backlash. A backlash adjustment may be necessary as the worm wears down. In some cases, this backlash can be adjusted by adjusting the center distance between the worm gear.
The size of worm gear reducer gearbox depends on its function. For example, if the worm gear is used to reduce the speed of an automobile, it should be a model that can be installed in a small car.

China Power Transmission Worm Gearbox Ratio 5 to 100     double enveloping worm gearboxChina Power Transmission Worm Gearbox Ratio 5 to 100     double enveloping worm gearbox
editor by czh 2023-01-09

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Mail: sales@worm-gearboxes.xyz

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