Product Description
Product description
Good Performance NRV NMRV Series Worm Gearbox for Lawn Mower
| NRV | 030 | 040 | 050 | 063 | 075 | 090 | 110 | 130 | 150 |
| B | 20 | 23 | 30 | 40 | 50 | 50 | 60 | 80 | 80 |
| D1 | 9 j6 | 11 j6 | 14 j6 | 19 j6 | 24 j6 | 24 j6 | 28 j6 | 30 j6 | 35 j6 |
| G2 | 51 | 80 | 74 | 90 | 105 | 125 | 142 | 162 | 195 |
| G3 | 45 | 53 | 64 | 75 | 90 | 108 | 135 | 155 | 175 |
| I | 30 | 40 | 50 | 63 | 75 | 90 | 110 | 130 | 150 |
| b1 | 3 | 4 | 5 | 6 | 8 | 8 | 8 | 8 | 10 |
| f1 | – | – | M6 | M6 | M8 | M8 | M10 | M10 | M12 |
| t1 | 10.2 | 12.5 | 16 | 21.5 | 27 | 27 | 31 | 33 | 38 |
| NRV-NMRV | 030-040 | 030-050 | 030-063 | 040-075 | 040-090 | 050-105 | 050-110 | 063-130 | 063-150 |
| B | 20 | 20 | 20 | 23 | 23 | 30 | 30 | 40 | 40 |
| D1 | 9 j5 | 9 j6 | 9 j6 | 11 j6 | 11 j6 | 14 j6 | 14 j6 | 19 j6 | 19 j6 |
| G2 | 51 | 51 | 51 | 60 | 00 | 74 | 74 | 90 | 90 |
| I | 10 | 20 | 33 | 35 | 50 | 60 | 60 | 67 | 87 |
| b1 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 |
| f1 | – | – | – | – | – | M6 | M6 | M6 | M6 |
| t1 | 10.2 | 10.2 | 10.2 | 12.5 | 12.5 | 16 | 16 | 21.5 | 21.5 |
NMRV571
Weight without motor:0.7kg
Input size: ( Pm, Dm, bm, tm )
NMRV030
Weight without motor:1.2kg
Input size: ( Pm, Dm, bm, tm )
| NMRV040 Output | ||
| D H8 | b | t |
| 18 (19) | 6 (6) | 20.8 (21.8) |
| (..)Only on request Weight without motor:2.3kg Input size (Pm, Dm, bm, tm) | ||
NMRV110
Weight without motor: 35kg
Input size: (Pm, Dm, bm, tm)
NMRV130
Weight without motor: 48kg
Input size: (Pm, Dm, bm, tm)
NMRV150
Weight without motor: 87.8kg
Input size: (Pm, Dm, bm, tm)
Features:
1) Aluminum alloy die-casted gearbox
2) Compact structure saves mounting space
3) Highly accurate
4) Runs CHINAMFG and backward
5) High overload capacity
6) Stable transmission with reduced vibration and noise
Characteristics:
1. High quality aluminum alloy quadrate case .
2. High efficiency.
3. Small size, compact constructure and light weight.
4. Combination of 2 single-step worm gear speed reducers, meeting the requirements of super speed ratio.
Technical Data:
1. Input power: 0.06kW-15kW
2. Output torque: 7.8-1195N.m
3. Speed ratio: (5-100) 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100
4. Adapt for IEC, NEMA, SERVO
Materials:
1. From RV25 up to RV105: Aluminium alloy housing.
2. From RV110 to RV150: Cast iron housing.
3. Seal: CHINAMFG Seal from ZheJiang
4. Bearing :homemade Bearing
Color:
1. RAL5571
2. Blue
3. Silver
Quality control:
1.Quality guarantee: 1 year
2.Certificate of quality: ISO9001:2008
3.Every product must be tested before packing
General Technical data:
Size number:25,30,40,50,63,75,90,110,130,150
Ratio:1/100-1/5000
Color:blue,silver,RAL5571 color
Material:housing -casting iron- HT200-250#/aluminum worm gear-KK alloy worm-20CrMnTi with carburizing and quenching,surface hardness is 58-62HRC shaft-chromium steel-45#
Packing: Inner pack: use plastic bag a Inner pack: use plastic bag and foam box, outer pack: carton or wooden case 1set/bag/carton or based on customer’s requestbearing: CHINAMFG & Homemade bearing
Seal: CHINAMFG seal from ZheJiang
Input power: 0.25kw,0.37kw,0.55kw,0.75kw,1.1kw,1.5kw,2.2kw,3.0kw,4.0kw,5.5kw,7.5kw
Lubricant:Synthetic & Mineral
IEC flange:56B5,63B5,71B5,80B5,90B5,100B5,112B5,132B5
Output form: CHINAMFG shaft,hollow shaft weight: 0.7-87.8KGSapplication: In industrial machine:food Stuff,ceramics,chemical,packing,printing,dyeing,woodworking,glass and plastics
Warranty:1 year
Recommend Products
Gear Reducers For Belt Conveyor
Speed Worm Gear Reducer
HangZhou CHINAMFG Industry Co., Ltd. is a specialized supplier of a full range of chains, sprockets, gears, gear racks, v belt pulley, timing pulley, V-belts, couplings, machined parts and so on.
Due to our CHINAMFG in offering best service to our clients, understanding of your needs and overriding sense of responsibility toward filling ordering requirements, we have obtained the trust of buyers worldwide. Having accumulated precious experience in cooperating with foreign customers, our products are selling well in the American, European, South American and Asian markets. Our products are manufactured by modern computerized machinery and equipment. Meanwhile, our products are manufactured according to high quality standards, and complying with the international advanced standard criteria.
With many years’ experience in this line, we will be trusted by our advantages in competitive price, one-time delivery, prompt response, on-hand engineering support and good after-sales services.
Additionally, all our production procedures are in compliance with ISO9001 standards. We also can design and make non-standard products to meet customers’ special requirements. Quality and credit are the bases that make a corporation alive. We will provide best services and high quality products with all sincerity. If you need any information or samples, please contact us and you will have our soon reply.
FAQ:
Q1: Are you trading company or manufacturer ?
A: We are factory.
Q2: How long is your delivery time and shipment?
1.Sample Lead-times: generally 10 workdays.
2.Production Lead-times: 20-40 workdays after getting your deposit.
Q3. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery.
Q4: What is your advantages?
1. Manufacturer,the most competitive price and good quality.
2. Perfect technical engineers give you the best support.
3. OEM is available.
4. Rich stock and quick delivery.
Q5. If you can’t find the product on our website,what do you next?
Please send us inquiry with product pictures and drawings by email or other ways and we’ll check.
| Output Speed: | 17.5-186.7 R/Min |
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| Applicable Industries: | Hotels, Garment Shops, Building Material Shops |
| Customized Support: | OEM, ODM |
| Customization: | Available | Customized Request |
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| Shipping Cost: Estimated freight per unit. | about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Calculating Torque Requirements for an NMRV Gearbox
Calculating torque requirements for an NMRV gearbox involves several steps: Identify Input Torque, Calculate Output Torque, Consider Efficiency, and Add Safety Margin.
- Identify Input Torque: Determine the input torque required by the application, taking into account factors such as load, speed, and efficiency.
- Calculate Output Torque: Use the gear ratio of the NMRV gearbox to calculate the output torque needed to achieve the desired output speed.
- Consider Efficiency: Take into account the efficiency of the NMRV gearbox. The actual output torque will be influenced by the gearbox’s mechanical efficiency.
- Add Safety Margin: To ensure reliable performance and account for variations in operating conditions, it’s recommended to add a safety margin to the calculated torque requirements.
Formula to calculate output torque: Output Torque = Input Torque × Gear Ratio × Gearbox Efficiency
Keep in mind that torque requirements can vary based on the specific application and factors such as load type, duty cycle, and environmental conditions. Consulting with gearbox manufacturers or engineering experts can help ensure accurate torque calculations for your NMRV gearbox application.
Lifespan of an NMRV Gearbox
The lifespan of an NMRV (worm gear) gearbox can vary based on several factors, including the quality of manufacturing, proper maintenance practices, operating conditions, and the specific application it is used for. However, when designed, manufactured, and maintained properly, NMRV gearboxes can have a long and reliable service life.
High-quality NMRV gearboxes that are made from durable materials, precisely machined, and assembled with care tend to have a longer lifespan. Regular maintenance, including proper lubrication, inspection, and addressing any signs of wear or damage, can significantly extend the gearbox’s operational life.
The operating conditions in which the gearbox is used also play a role in determining its lifespan. Factors such as load, temperature, speed, and environment can impact the wear and tear on the gearbox components.
It’s important to follow the manufacturer’s recommendations for maintenance intervals and procedures to ensure optimal performance and longevity of the NMRV gearbox. By adhering to these guidelines and addressing any issues promptly, users can expect an NMRV gearbox to provide reliable service for many years.
NMRV Gearbox Ratios
NMRV gearboxes are available in a variety of gear ratios to suit different applications and torque requirements. The gear ratio determines the relationship between the input and output speeds of the gearbox. Commonly available ratios include:
- 5:1: This ratio provides higher output torque at a slower output speed compared to the input speed.
- 7.5:1: This ratio offers a balance between torque and speed.
- 10:1: With this ratio, the output speed is further reduced while increasing torque output.
- 15:1: This ratio is suitable for applications requiring higher torque output at the expense of speed.
- 20:1: This ratio maximizes torque output while significantly reducing output speed.
- 25:1: It provides even higher torque output at a further reduced output speed.
- 30:1: This ratio is ideal for applications demanding maximum torque at minimum output speed.
- 40:1 and higher: These ratios are used in applications with very high torque requirements and low output speed.
The choice of gearbox ratio depends on the specific application, desired output speed, and required torque. It’s important to select the right ratio to ensure optimal performance and efficiency in your machinery.
editor by CX 2023-12-07