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China Custom Nmrv Induction Motor and Gearbox Nmrv030/040/050/060 cvt gearbox

Product Description

Product Description

 

Type Worm Gear Speed Reducer/ gearbox
Model WMRV 25/30/40/50/63/75/90/110/130/150/185
Ratio 7.5,10,15,20,25,30,40,50,60,80,100.
Color Blue(RAL5571)/Silver grey (K9149) Or On Customer Request
Material Housing: Aluminum alloy(size 25~90) / Cast iron(size 110~185)
Worm wheel: Aluminum Bronze or Tin Bronze
Worm shaft: 20CrMn Ti
Output Shaft: steel-45#
Packing Carton, Honey Comb Carton, Wooden Case with wooden pallet
Warranty 1 Year
Input Power 0.09kw,0.18kw,1.1KW,1.5KW,2.2KW,3KW,4KW,5.5KW,7.5KW,11Kw and so on.
Usages Industrial Machine: Food Stuff, Ceramics, CHEMICAL, Packing, Dyeing,Wood working, Glass.
IEC Flange IEC standard flange or on customer request
Lubricant Synthetic oil or worm gear oil
Protection Class IP55

 

Center Distance Motor Flange The Hole Diameter of Shaft
PAM
IEC		 N M P E F Transmission Ratio
7.5 10 15 20 25 30 40 50 60 80 100
NMRV571 56B14 50 65 80 3 10.4 9 – 9 –
NMRV030 63B5 95 115 140 4 12.8 11 –
63B14 60 75 90
56B5 80 100 120 3 10.4 9 –
56B14 50 65 80
NMRV040 71B5 110 130 160 5 16.3 14 –
71B14 70 85 105
63B5 95 115 140 4 12.8 11
63B14 60 75 90
56B5 80 100 120 3 10.4 – 9
NMRV050 80B5 130 165 200 6 21.8 19 –
80B14 80 100 120
71B5 110 130 160 5 16.3 14 –
71B14 70 85 105
63B5 95 115 140 4 12.8 – 11
NMRV063 90B5 130 165 200 8 27.3 24 –
90B14 95 115 140
80B5 130 165 200 6 21.8 19 –
80B14 80 100 120
71B5 110 130 160 5 16.3 – 14
71B14 70 85 105
NMRV075 100/112B5 180 215 250 8 31.3 28 –
100/112B14 110 130 160
90B5 130 165 200 8 27.3 24 –
90B14 95 115 140
80B5 130 165 200 6 21.8 – 19
80B14 80 100 120
NMRV090 100/112B5 180 215 250 8 31.3 28 –
100/112B14 110 130 160
90B5 130 165 200 8 27.3 24 –
90B14 95 115 140
80B5 130 165 200 6 21.8 – 19
80B14 80 100 120
NMRV110 132B5 230 265 300 10 41.1 38 –
100/112B5 180 215 250 8 31.3 28 –
90B5 130 165 200 8 27.3 – 24
NMRV130 132B5 230 265 300 10 41.1 38 –
100/112B5 180 215 250 8 31.3 – 28
NMRV150 160B5 250 300 350 12 45.3 42  
132B5 230 265 300 10 41.3 – 38 –
100/112B5 180 215 250 8 31.3 – 28

 

Mounting Positions

FAQ

Q1: Are you trading company or manufacturer?

A1: We have our own factory.

 

Q2: How long is your delivery time?

A2: Generally it is 7-30 days.it is according to quantity.

 

Q3: Can you send products to my country?

A3: Generally it is 7-30 days.it is according to quantity.

 

Q4: What is your terms of payment?

A4: We accept T/T, Paypal, Western union.

 

Q5: What’s your warranty ?

A5:1 year.

Q6: How to handle if meet quality complaints within warranty?
A6: We afford replaced goods for free in your next shipment.

Q7: How to handle if exceed warranty?
A7: We can afford repair service and clients need pay the accessory cost if replacement.

Q8: Can you give more discounts if more quantity and how many?
A8: We can afford discounts and rate based on updated quantity.

Q9:Can you make OEM/ODM order?
A9: Yes, we have rich experience on OEM/ODM order and like CHINAMFG NON-DISCLOSURE AGREEMENT before sample making;

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Application: Motor, Machinery
Hardness: Hardened Tooth Surface
Installation: 90 Degree
Step: Double-Step
Type: Worm Reducer
Housing Material: Aluminum
Samples:
US$ 31.5/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

nmrv gearbox

Using NMRV Gearboxes in High-Load Applications

NMRV gearboxes can be used in moderate to high-load applications, but their load capacity is generally limited compared to some other gearbox types. They are best suited for applications with light to moderate loads, such as conveyor systems, packaging equipment, and small machinery. It’s important to consider the specific load requirements and consult with gearbox manufacturers or engineers to ensure the chosen NMRV gearbox can handle the intended application’s load demands.

nmrv gearbox

Common Problems Associated with NMRV Gearboxes

NMRV (worm gear) gearboxes are reliable and durable, but like any mechanical system, they can experience certain issues over time. Here are some common problems that can be associated with NMRV gearboxes:

  • Overheating: Inadequate lubrication or excessive load can lead to overheating, causing accelerated wear and potential damage to the gearbox components.
  • Noise and Vibration: Unusual noises or excessive vibration during operation could indicate misalignment, worn gears, or damaged bearings.
  • Leakage: Oil leaks can occur due to worn seals or damaged gaskets, leading to lubricant loss and potential contamination of the surrounding environment.
  • Worn Gears: Over time, gear teeth can wear down due to friction and load. This can result in reduced efficiency, increased backlash, and compromised performance.
  • Misalignment: Improper installation or mounting can lead to misalignment between the input and output shafts, causing increased friction, wear, and reduced efficiency.
  • Backlash: Excessive backlash between the worm gear and the mating gear can lead to poor positioning accuracy and reduced efficiency in motion control applications.
  • Poor Lubrication: Using incorrect or inadequate lubricants, or neglecting proper lubrication maintenance, can lead to increased friction, wear, and potential failure of gearbox components.
  • Seal Damage: Worn or damaged seals can result in oil leaks and contamination, affecting the performance and lifespan of the gearbox.
  • Shaft Wear: Over time, the input and output shafts can experience wear due to load and friction, affecting the overall operation of the gearbox.
  • Corrosion: Exposure to harsh environments or corrosive substances can lead to corrosion of gearbox components, reducing their lifespan.

To prevent and address these common problems, it’s crucial to follow proper maintenance and servicing practices, use high-quality lubricants, address issues promptly, and consult professionals when needed. Regular inspections and proactive maintenance can help extend the operational lifespan and reliability of NMRV gearboxes.

nmrv gearbox

Key Features of an NMRV Gearbox

NMRV gearboxes, also known as worm gear reducers, offer several key features that make them suitable for various applications:

  • Compact Design: NMRV gearboxes are known for their compact and space-saving design, making them ideal for installations with limited space.
  • High Efficiency: These gearboxes offer relatively high efficiency levels, which ensures efficient power transmission and reduced energy loss.
  • Speed Reduction: NMRV gearboxes are primarily used for speed reduction applications, where the input speed is reduced while torque is increased.
  • Torque Multiplication: The worm and worm wheel mechanism allows for torque multiplication, making NMRV gearboxes suitable for applications requiring high torque output.
  • Self-Locking: The helical design of the worm causes self-locking, preventing the output shaft from back-driving the input shaft and providing mechanical locking.
  • Smooth Operation: NMRV gearboxes offer smooth and quiet operation, making them suitable for applications where noise reduction is important.
  • Wide Range of Ratios: These gearboxes come in a wide range of gear ratios, allowing users to select the appropriate ratio for their specific application.
  • Low Maintenance: The simple design and few moving parts contribute to the low maintenance requirements of NMRV gearboxes.
  • Versatility: NMRV gearboxes are versatile and can be used in various industries and applications, including conveyor systems, food processing, packaging, and more.

It’s important to consider these key features when selecting an NMRV gearbox for your specific application to ensure optimal performance and efficiency.

China Custom Nmrv Induction Motor and Gearbox Nmrv030/040/050/060 cvt gearbox China Custom Nmrv Induction Motor and Gearbox Nmrv030/040/050/060 cvt gearbox
editor by CX 2024-05-14

China high quality Motor Gear Reducer Nmrv Aluminum Worm Gearbox cvt gearbox

Product Description

RV Series Worm Gear Boxes Gearbox Speed Reducer with Electric Motors

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

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

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, Material Handling Machines
Hardness: Hardened Tooth Surface
Installation: B3, B6, B7, B8, V5, V6
Step: Single-Step
Type: Worm Reducer
Rated Power: 0.18 Kw
Customization:
Available

|

Customized Request

nmrv gearbox

Troubleshooting Abnormal Noises in an NMRV Gearbox

Abnormal noises from an NMRV gearbox can be troublesome and might indicate underlying issues. Follow these steps to troubleshoot and resolve the problem:

  1. Identify the Noise: Listen closely to the noise and determine if it’s a grinding, whining, or knocking sound.
  2. Check Lubrication: Insufficient or contaminated lubrication can lead to noises. Ensure the gearbox is properly lubricated.
  3. Inspect Gears: Examine the gear teeth for wear, damage, or misalignment.
  4. Look for Foreign Objects: Foreign objects inside the gearbox can cause noise. Clean and inspect the interior.
  5. Check Bearings: Worn or damaged bearings can be noisy. Inspect and replace them if necessary.
  6. Inspect Seals: Damaged seals can allow contaminants in, affecting performance. Replace damaged seals.
  7. Examine Housing: Ensure the gearbox housing is intact without cracks or misalignment.
  8. Review Load Conditions: Excessive loads can lead to noise. Ensure the gearbox isn’t overloaded.
  9. Check Mounting: Confirm the gearbox is properly mounted and aligned.
  10. Consult Guidelines: Refer to manufacturer guidelines for specific troubleshooting steps.
  11. Professional Help: If the issue persists, seek help from a professional technician or manufacturer.

Follow these steps to identify and rectify abnormal noises in your NMRV gearbox.

nmrv gearbox

Benefits of Using an NMRV Gearbox

NMRV gearboxes offer several advantages that make them a popular choice in various applications:

  • Compact Design: NMRV gearboxes are compact and space-efficient, making them suitable for installations with limited space.
  • High Efficiency: These gearboxes are designed for high efficiency, minimizing energy losses during power transmission.
  • Smooth Operation: NMRV gearboxes provide smooth and reliable operation due to their precise gear meshing and design.
  • Quiet Performance: The design and quality of NMRV gearboxes contribute to quiet operation, reducing noise levels in various applications.
  • Cost-Effective: Their efficient manufacturing processes and durability make NMRV gearboxes a cost-effective choice for power transmission.
  • Wide Ratio Range: NMRV gearboxes are available in a wide range of gear ratios, allowing users to select the most suitable option for their specific application needs.
  • Corrosion Resistance: Many NMRV gearboxes are constructed using materials that offer corrosion resistance, enhancing their longevity and performance in harsh environments.
  • Easy Installation: The compact and lightweight design of NMRV gearboxes makes them relatively easy to install and integrate into various systems.
  • Low Maintenance: With proper lubrication and maintenance, NMRV gearboxes can have a long service life with minimal maintenance requirements.
  • Versatility: NMRV gearboxes are versatile and can be used in a wide range of applications, from industrial machinery to conveyor systems.

These benefits collectively contribute to the popularity of NMRV gearboxes in industries where efficient and reliable power transmission is crucial.

nmrv gearbox

Working Principle of an NMRV Gearbox

An NMRV gearbox, also known as a worm gear reducer, operates based on a worm and worm wheel mechanism. Here’s how it works:

The gearbox consists of two main components: the worm (a screw-like shaft) and the worm wheel (a toothed wheel). The worm is driven by the input power source, while the worm wheel is connected to the output shaft.

As the worm rotates, its threaded shaft engages with the teeth of the worm wheel. The helical shape of the worm causes the teeth of the worm wheel to push against each other, resulting in a smooth and gradual transfer of motion. This mechanism provides the speed reduction and torque multiplication required for various applications.

One key characteristic of NMRV gearboxes is that the worm can turn the worm wheel, but the reverse is not possible due to the high friction generated by the helical threads. This feature prevents the output shaft from back-driving the input shaft, providing mechanical locking and enhancing safety and stability in applications.

The NMRV gearbox’s operation is continuous, and its simple design contributes to its reliability and efficiency. It is important to ensure proper lubrication to minimize wear and heat generation during operation.

China high quality Motor Gear Reducer Nmrv Aluminum Worm Gearbox cvt gearbox China high quality Motor Gear Reducer Nmrv Aluminum Worm Gearbox cvt gearbox
editor by CX 2023-12-04