China High Quality Gear Motor Nmrv90 Aluminum Worm Gearbox for Industrial Machine Nmrv 90 Gearbox worm gearbox calculation

Merchandise Description

Substantial Top quality Equipment Motor Nmrv90 Aluminum Worm Gearbox for Industrial Equipment Nmrv ninety Gearbox

Enter Configurations

Double or solitary enter shaft (NRV)

PAM / IEC motor enter shaft with circle or sq. flange (NMRV)

Output Configurations

 

Double or one output shaft

Output flange

Specification

Model

Motor Enter Flange (circle)

Transmission Ratio

Electricity

(kw)

Ratio

(i)

Nominal Torque

(Nm)

PAM / IEC

Inner Dia.

Dis. In between Diagonal Screw Holes

Exterior Dia.

Width of Key Slot

5

seven.five

10

fifteen

twenty

25

thirty

forty

fifty

sixty

eighty

100

N

M

P

E

Diamter of Enter Shaft

NMRV25

56B14

50

65

eighty

3

nine

nine

.06

7.5-sixty

two.6-fourteen

NMRV30

63B5

ninety five

a hundred and fifteen

a hundred and forty

four

eleven

.06-.18

seven.5-80

2.6-14

63B14

sixty

75

ninety

56B5

eighty

a hundred

120

three

nine

56B14

50

65

80

NMRV40

71B5

110

a hundred thirty

160

5

14

.09-.37

7.5-one hundred

11-fifty three

71B14

70

85

a hundred and five

63B5

ninety five

a hundred and fifteen

a hundred and forty

four

eleven

63B14

60

75

ninety

56B5

eighty

one hundred

a hundred and twenty

three

nine

NMRV50

80B5

130

one hundred sixty five

200

six

19

.12-.75

7.5-one hundred

21-89

80B14

eighty

one hundred

a hundred and twenty

71B5

a hundred and ten

a hundred thirty

one hundred sixty

five

14

71B14

70

eighty five

a hundred and five

63B5

95

one hundred fifteen

a hundred and forty

four

11

NMRV63

90B5

a hundred thirty

one hundred sixty five

200

eight

24

.twenty five-1.five

seven.5-one hundred

56-166

90B14

ninety five

115

one hundred forty

80B5

130

a hundred sixty five

200

six

19

80B14

eighty

100

120

71B5

110

a hundred thirty

a hundred and sixty

5

14

71B14

70

85

a hundred and five

NMRV75

a hundred/112B5

a hundred and eighty

215

250

eight

28

.fifty five-4

7.5-100

ninety-269

a hundred/112B14

110

130

one hundred sixty

90B5

130

a hundred sixty five

200

eight

24

90B14

95

a hundred and fifteen

a hundred and forty

80B5

130

one hundred sixty five

two hundred

six

19

80B14

80

100

120

71B5

110

130

one hundred sixty

fourteen

NMRV90

100/112B5

180

215

250

eight

28

.55-4

seven.5-a hundred

one hundred and one-458

one hundred/112B14

one hundred ten

130

a hundred and sixty

90B5

130

a hundred sixty five

two hundred

8

24

90B14

ninety five

one hundred fifteen

140

80B5

one hundred thirty

165

200

6

19

80B14

eighty

one hundred

120

NMRV110

132B5

230

265

300

10

38

one.1-7.five

seven.5-one hundred

242-660

132B14

a hundred thirty

a hundred sixty five

two hundred

one hundred/112B5

a hundred and eighty

215

250

eight

28

90B5

one hundred thirty

165

two hundred

24

90B14

95

a hundred and fifteen

140

80B5

a hundred thirty

a hundred sixty five

200

19

 NMRV130 

132B5

230

265

three hundred

ten

 – 

38

 – 

 2.2-7.5 

 7.5-100 

 333-1596 

132B14

a hundred thirty

one hundred sixty five

two hundred

a hundred/112B5

one hundred eighty

215

250

eight

28

90B5

one hundred thirty

one hundred sixty five

200

24

90B14

95

a hundred and fifteen

140

NMRV150

160B5

250

three hundred

350

12

42

two.2-15

7.5-a hundred

570-1760

132B5

230

265

300

10

38

132B14

130

a hundred sixty five

two hundred

100/112B5

a hundred and eighty

215

250

eight

28

Company profile

Circumstance

Packing

FAQ

Q1: I want to buy your products, how can I pay out?
A: You can pay by means of T/T(thirty%+70%), L/C ,D/P and so on. 

Q2: How can you ensure the top quality?
A: A single year’s guarantee towards B/L date. If you meet up with with quality problem, remember to send us pictures or video to check, we assure to send out spare parts or new products to exchange. Our ensure not include inappropriate operation or mistaken specification selection. 

Q3: How we select types and specifications?
A: You can e-mail us the sequence code (for example: RC series helical gearbox) as nicely as necessity particulars, such as motor electrical power,output velocity or ratio, services factor or your software…as significantly information as attainable. If you can provide some pictures or drawings,it is nice. 

This autumn: If we do not find what we want on your internet site, what need to we do?
A: We offer 3 choices:
one, You can e mail us the photographs, drawings or descriptions details. We will try to design and style your items on the basis of our
regular models.
two, Our R&D office is specialist for OEM/ODM products by drawing/samples, you can ship us samples, we do personalized layout for your bulk buying.
3, We can produce new merchandise if they have excellent industry. We have currently produced many products for unique utilizing effective, this kind of as particular gearbox for agitator, cement conveyor, footwear machines and so on. 

Q5: Can we buy 1 pc of every merchandise for top quality tests?
A: Of course, we are glad to acknowledge demo buy for quality testing.

Q6: How about your merchandise supply time?
A: Usually for 20’container, it requires 25-30 workdays for RV collection worm gearbox, 35-40 workdays for helical gearmotors.

US $18-35
/ Piece
|
20 Pieces

(Min. Order)

###

Application: Motor, Machinery, Agricultural Machinery
Hardness: Hardened Tooth Surface
Installation: B3,B6,B7,B8,V5,V6
Layout: Coaxial
Gear Shape: Cylindrical Gear
Step: Single-Step

###

Customization:

###

Input Configurations
Double or single input shaft (NRV)
PAM / IEC motor input shaft with circle or square flange (NMRV)
Output Configurations
 
Double or single output shaft
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
Hardness: Hardened Tooth Surface
Installation: B3,B6,B7,B8,V5,V6
Layout: Coaxial
Gear Shape: Cylindrical Gear
Step: Single-Step

###

Customization:

###

Input Configurations
Double or single input shaft (NRV)
PAM / IEC motor input shaft with circle or square flange (NMRV)
Output Configurations
 
Double or single output shaft
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 High Quality Gear Motor Nmrv90 Aluminum Worm Gearbox for Industrial Machine Nmrv 90 Gearbox     worm gearbox calculationChina High Quality Gear Motor Nmrv90 Aluminum Worm Gearbox for Industrial Machine Nmrv 90 Gearbox     worm gearbox calculation
editor by czh 2023-01-25