China Custom Factory Manufacture Worm Gearbox Silver Color Aluminum Body Worm Gear Box with DC Motor best automatic gearbox

Product Description

Factory Manufacture Worm Gearbox Silver Color Aluminum Body Worm Gear Box with DC Motor

Product Description

  • RV – Sizes:–150
  • Input Options: with input shaft, With Square flange,With Input Flange
  • Input Power 0.06 to 11 kW
  • RV-Size from 030 to 105 in die-cast aluminium alloy budy and over 110 in cast iron
  • Ratios between 5 and 100
  • Max torque 1550 N.m and admissible output radial loads max 8771 N
  • Aluminium units are supplied complete with synthetic oil and allow for universal mounting positions, with no need to modify lubricant quantity
  • Worm wheel: Copper (KK Cu). 
  • Loading capacity in accordance with: ISO 9001:2015/GB/T 19001-2016
  • Size 030 and over are painted with RAL 5571 blue
  • Worm gear reducers are available with diffferent combinations: NMRV+NMRV, NMRVpower+NMRV, JWB+NMRV
  • NMRV, NRV+VS,NMRV+AS,NMRV+VS,NMRV+F
  • Options: torque arm, output flange, viton oil seals, low/high temperature oil, filling/drain/breather/level plug.

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

Specification

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

Company profile

Scenario

Packing

FAQ

Q1: I want to buy your products, how can I pay?
A: You can pay via T/T(30%+70%), L/C ,D/P etc. 

Q2: How can you guarantee the quality?
A: One year’s warranty against B/L date. If you meet with quality problem, please send us pictures or video to check, we promise to send spare parts or new products to replace. Our guarantee not include inappropriate operation or wrong specification selection. 

Q3: How we select models and specifications?
A: You can email us the series code (for example: RC series helical gearbox) as well as requirement details, such as motor power,output speed or ratio, service factor or your application…as much data as possible. If you can supply some pictures or drawings,it is nice. 

Q4: If we don’t find what we want on your website, what should we do?
A: We offer 3 options:
1, You can email us the pictures, drawings or descriptions details. We will try to design your products on the basis of our
standard models.
2, Our R&D department is professional for OEM/ODM products by drawing/samples, you can send us samples, we do customized design for your bulk purchasing.
3, We can develop new products if they have good market. We have already developed many items for special using successful, such as special gearbox for agitator, cement conveyor, shoes machines and so on. 

Q5: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.

Q6: How about your product delivery time?
A: Normally for 20’container, it takes 25-30 workdays for RV series worm gearbox, 35-40 workdays for helical gearmotors.

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

Can a Worm Gearbox be Used for High-Speed Applications?

Worm gearboxes are generally not recommended for high-speed applications due to their inherent design characteristics. Here’s why:

  • Efficiency: Worm gearboxes tend to have lower efficiency compared to other gearbox types, which means they can generate more heat and experience more energy loss at high speeds.
  • Heat Generation: The sliding contact between the worm and worm wheel in a worm gearbox can lead to significant friction and heat generation, especially at high speeds. This heat can cause thermal expansion, affecting the gearbox’s performance and longevity.
  • Wear and Noise: High speeds can exacerbate wear and noise issues in worm gearboxes. Increased friction and wear can lead to faster degradation of components, resulting in reduced lifespan and increased maintenance needs.
  • Backlash: Worm gearboxes may have higher backlash compared to other gearbox types, which can impact precision and accuracy in high-speed applications.

While worm gearboxes are more commonly used in applications requiring high torque and moderate speeds, they may not be the best choice for high-speed scenarios. If high-speed operation is a requirement, other gearbox types such as helical, spur, or planetary gearboxes are often better suited due to their higher efficiency, lower heat generation, and reduced wear at elevated speeds.

:

How to Calculate the Efficiency of a Worm Gearbox

Calculating the efficiency of a worm gearbox involves determining the ratio of output power to input power. Efficiency is a measure of how well the gearbox converts input power into useful output power without losses. Here’s how to calculate it:

  • Step 1: Measure Input Power: Measure the input power (Pin) using a power meter or other suitable measuring equipment.
  • Step 2: Measure Output Power: Measure the output power (Pout) that the gearbox is delivering to the load.
  • Step 3: Calculate Efficiency: Calculate the efficiency (η) using the formula: Efficiency (η) = (Output Power / Input Power) * 100%

For example, if the input power is 1000 watts and the output power is 850 watts, the efficiency would be (850 / 1000) * 100% = 85%.

It’s important to note that efficiencies can vary based on factors such as gear design, lubrication, wear, and load conditions. The calculated efficiency provides insight into how effectively the gearbox is converting power, but it’s always a good practice to refer to manufacturer specifications for gearbox efficiency ratings.

Available

|

Customized Request

What is a Worm Gearbox and How Does It Work?

A worm gearbox, also known as a worm gear reducer, is a mechanical device used to transmit rotational motion and torque between non-parallel shafts. It consists of a worm screw and a worm wheel, both of which have helical teeth. The worm screw resembles a threaded cylinder, while the worm wheel is a gear with teeth that mesh with the worm screw.

The working principle of a worm gearbox involves the interaction between the worm screw and the worm wheel. When the worm screw is rotated, its helical teeth engage with the teeth of the worm wheel. As the worm screw rotates, it translates the rotational motion into a perpendicular motion, causing the worm wheel to rotate. This perpendicular motion allows the worm gearbox to achieve a high gear reduction ratio, making it suitable for applications that require significant speed reduction.

One of the key features of a worm gearbox is its ability to provide a high gear reduction ratio in a compact design. However, due to the sliding nature of the meshing teeth, worm gearboxes may exhibit higher friction and lower efficiency compared to other types of gearboxes. Therefore, they are often used in applications where efficiency is not the primary concern but where high torque and speed reduction are essential, such as conveyor systems, elevators, automotive steering systems, and certain industrial machinery.

China Custom Factory Manufacture Worm Gearbox Silver Color Aluminum Body Worm Gear Box with DC Motor best automatic gearbox China Custom Factory Manufacture Worm Gearbox Silver Color Aluminum Body Worm Gear Box with DC Motor best automatic gearbox
editor by CX 2023-09-04