China wholesaler Nmrv075 Worm Gearboxes for Chemical Machinery car gearbox

Product Description

NMRV/NRV Series Worm and Gear Motor
NMRV Series High Quality Worm Gear Motor contains worm gear reducer and motor(Including 3 phrese AC motor,single AC motor,DC servo motor and DC PM motor).The square aluminum gearbox is manufactured based on GB157188 cylindrical gear parameter.During the process, many advanced technologies are adopted.So it has compact structure, good appearance and excellent heatsink when runing.
This series motor has the following characteristics:smooth running, low noise, large transmission ratio and strange loadcapacity and it may match with different kinds of motors for realizing speed adjustment.
Working principle
High quality ac 230v hollow shaft worm gear motor is used to transfer rotation and torque from motor to working machine,the function is to decrease speed by gears and increase torque
Design characteristics
1:Use low-carbon Aluminium Alloy cementation processing completely.
2:High precision on gear and gear shaft.
3:Small volume with big torque.
Model & Mark :NMRV 075-50 E F1 AZ B3

NMRV NMRV means hole input with flange NRV means shaft input without flange
075 Distance between the centers of worm and worm gear
50 Speed ratio of worm gear speed reducer
E “E” means double extension worm shaft, no mark means single extension worm shaft
F1 “F” means output flange, “FL” means high output flange,no mark means output without flange
AZ “AZ”means bidirectional output shaft, “GZ”means unilateral output shaft and no mark means hole output
B3 Installation position code

Motor power  Model speed ratio output speed output toruqe
0.25kw 1400rpm NMRV075 60 24rpm 68.0N.M
NMRV075 80 18rpm 80.0N.M
NMRV075 100 14rpm 94.0N.M
0.37kw 1400rpm NMRV075 40 35rpm 74.0N.M
NMRV075 50 28rpm 88.0N.M
NMRV075 60 24rpm 97.0N.M
NMRV075 80 18rpm 119.0N.M
NMRV075 100 14rpm 139.0N.M
0.55kw 1400rpm NMRV075 25 56rpm 76.0N.M
NMRV075 30 47rpm 87.0N.M
NMRV075 40 35rpm 108.0N.M
NMRV075 50 28rpm 128.0N.M
NMRV075 60 24rpm 144.0N.M
NMRV075 80 18rpm 177.0N.M
NMRV075 100 14rpm 206.0N.M
0.75kw 1400rpm NMRV075 15 94rpm 66.0N.M
NMRV075 20 70rpm 85.0N.M
NMRV075 25 56rpm 101.0N.M
NMRV075 30 47rpm 117.0N.M
NMRV075 40 35rpm 147.0N.M
NMRV075 50 28rpm 174.0N.M
NMRV075 60 24rpm 196.0N.M
NMRV075 80 18rpm 250.0N.M
1.1kw 1400rpm NMRV075 10 140rpm 66.0N.M
NMRV075 15 94rpm 95.0N.M
NMRV075 20 70rpm 122.0N.M
NMRV075 25 56rpm 148.0N.M
NMRV075 30 47rpm 171.0N.M
NMRV075 40 35rpm 216.0N.M
NMRV075 50 28rpm 263.0N.M
NMRV075 60 24rpm 297.0N.M
1.5kw 1400rpm NMRV075 7.5 186rpm 68.0N.M
NMRV075 10 140rpm 89.0N.M
NMRV075 15  94rpm 129.0N.M
NMRV075 20  70rpm 166.0N.M
NMRV075 25  56rpm 202.0N.M
NMRV075 30  47rpm 233.0N.M
NMRV075 40 35rpm 299.0N.M
2.2kw 1400rpm NMRV075 7.5 186rpm 99.0N.M
NMRV075 10 140rpm 131.0N.M
NMRV075 15  94rpm 189.0N.M
NMRV075 20  70rpm 249.0N.M
NMRV075 25  56rpm 304.0N.M
NMRV075 30  47rpm 247.0N.M
3.0kw 1400rpm NMRV075 7.5 186rpm 135.0N.M
NMRV075 10 140rpm 178.0N.M
NMRV075 15  94rpm 258.0N.M
4.0kw 1400rpm NMRV075 7.5 186rpm 180.0N.M
NMRV075 10 140rpm 237.0N.M

Notice for ordering:
1) when ordering,please refer to the details of the products and tell us the exact type your need according to your requirements,like input speed,output torque,configuration,installation,etc:the installation position of the products in the order should accord with your actual needs,otherwise, it will result in oil leakage, which will impact the serving life of the products negatively.if there is special requirement to the installation position,please stress it and inform us.

2) to attain the excellent state of the variators, the common working speed should be chosen in the middle position,instead,it ismot appropriate to choose in the positions of min,or max.speed

3) if your requirements of worm gearbox or speed variator are different from shte standard products as in the catalogue,like:some portion that should be customized or mounted with special motors,please inform us in advance

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Application: Machinery, Industry
Hardness: Hardened
Type: Worm and Wormwheel


Customized Request

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Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

worm gearbox

How to Install and Align a Worm Reducer Properly

Proper installation and alignment of a worm reducer are crucial for ensuring optimal performance and longevity. Follow these steps to install and align a worm reducer:

  1. Preparation: Gather all the necessary tools, equipment, and safety gear before starting the installation process.
  2. Positioning: Place the worm reducer in the desired location, ensuring that it is securely mounted to a stable surface. Use appropriate fasteners and mounting brackets as needed.
  3. Shaft Alignment: Check the alignment of the input and output shafts. Use precision measurement tools to ensure that the shafts are parallel and in line with each other.
  4. Base Plate Alignment: Align the base plate of the reducer with the foundation or mounting surface. Ensure that the base plate is level and properly aligned before securing it in place.
  5. Bolt Tightening: Gradually and evenly tighten the mounting bolts to the manufacturer’s specifications. This helps ensure proper contact between the reducer and the mounting surface.
  6. Check for Clearance: Verify that there is enough clearance for any rotating components or parts that may move during operation. Avoid any interference that could cause damage or performance issues.
  7. Lubrication: Apply the recommended lubricant to the worm reducer according to the manufacturer’s guidelines. Proper lubrication is essential for smooth operation and reducing friction.
  8. Alignment Testing: After installation, run the worm reducer briefly without a load to check for any unusual noises, vibrations, or misalignment issues.
  9. Load Testing: Gradually introduce the intended load to the worm reducer and monitor its performance. Ensure that the reducer operates smoothly and efficiently under the load conditions.

It’s important to refer to the manufacturer’s installation guidelines and specifications for your specific worm reducer model. Proper installation and alignment will contribute to the gearbox’s reliability, efficiency, and overall functionality.

worm gearbox

Worm Gearbox vs. Helical Gearbox: A Comparison

Worm gearboxes and helical gearboxes are two popular types of gear systems, each with its own set of advantages and disadvantages. Let’s compare them:

Aspect Worm Gearbox Helical Gearbox
Efficiency Lower efficiency due to sliding friction between the worm and worm wheel. Higher efficiency due to rolling contact between helical gear teeth.
Torque Transmission Excellent torque transmission and high reduction ratios achievable in a single stage. Good torque transmission, but may require multiple stages for high reduction ratios.
Noise and Vibration Generally higher noise and vibration levels due to sliding action. Lower noise and vibration levels due to smoother rolling contact.
Backlash Higher inherent backlash due to the design. Lower backlash due to meshing of helical teeth.
Efficiency at Higher Speeds Less suitable for high-speed applications due to efficiency loss. More suitable for high-speed applications due to higher efficiency.
Overload Protection Natural self-locking feature provides some overload protection. May not have the same level of inherent overload protection.
Applications Commonly used for applications requiring high reduction ratios, such as conveyor systems and heavy-duty machinery. Widely used in various applications including automotive transmissions, industrial machinery, and more.

Both worm and helical gearboxes have their place in engineering, and the choice between them depends on the specific requirements of the application. Worm gearboxes are preferred for applications with high reduction ratios, while helical gearboxes are chosen for their higher efficiency and smoother operation.

worm gearbox

Types of Worm Gear Configurations and Their Uses

Worm gear configurations vary based on the arrangement of the worm and the gear it engages with. Here are common types and their applications:

  • Single Enveloping Worm Gear: This configuration offers high torque transmission and efficiency. It’s used in heavy-duty applications like mining equipment and industrial machinery.
  • Double Enveloping Worm Gear: With increased contact area, this type provides higher load capacity and improved efficiency. It’s used in aerospace applications, robotics, and precision machinery.
  • Non-Throated Worm Gear: This type has a cylindrical worm without a throat. It’s suitable for applications requiring precise motion control, such as CNC machines and robotics.
  • Throated Worm Gear: Featuring a throat in the worm, this configuration offers smooth engagement and higher load capacity. It’s used in conveyors, elevators, and automotive applications.
  • Non-Modular Worm Gear: In this design, the worm and gear are a matched set, resulting in better meshing and efficiency. It’s utilized in various industries where customization is essential.
  • Modular Worm Gear: This type allows interchangeability of worm and gear components, providing flexibility in design and maintenance. It’s commonly used in conveyors, mixers, and material handling systems.

Selecting the appropriate worm gear configuration depends on factors such as load capacity, efficiency, precision, and application requirements. Consulting gearbox experts can help determine the best configuration for your specific needs.

China wholesaler Nmrv075 Worm Gearboxes for Chemical Machinery   car gearbox	China wholesaler Nmrv075 Worm Gearboxes for Chemical Machinery   car gearbox
editor by CX 2024-03-13