China Standard Gearbox Test Bench Hydraulic Motor Test Bench Worm Gearbox components of gearbox

Product Description

Product Description

ZJ-A type large torque speed sensor is capable of measuring various Super torque. The detection is mainly used in large motor, engine, internal combustion engines and other rotating power equipment output torque and power; detection of fan and water pump, gear box, torque wrench, torque and power; detection of railway locomotive, automobile, tractor, aircraft, shipbuilding, mining machinery in torque and power.


Model Range 
Maximum speed
ZJ-500K A 500K 800 ±0.2% F.S
ZJ-750K A 750K 710 ±0.2% F.S
ZJ-1000K A 1000K 710 ±0.2% F.S
ZJ-1200K A 1200K 560 ±0.2% F.S
ZJ-1500K A 1500K 560 ±0.2% F.S
ZJ-2000K A 2000K 480 ±0.2% F.S


ZJ torque speed sensor (dynamic) adopts strain gauge measurement technique.The electrical signal of elastic shaft under torsion can be measured by providing power for the strain gauge bridge. After amplified,and voltage/frequency conversion, the strain signal is converted into the frequency signal directly proportional to torsional strain.

Product features:

1. Torque measurement;energy and signal non-contact transmission; output signal digitized .
2. High testing precision, high stability and anti-inter ference ability. 
3.Repeating zero setting is not required continuous 
4. Both static torque and dynamic torque can be measured. be used independently without secondary instrument, output signal can directly use by PLC or PC . 
6.Can be customized according to customer requirements.

Main Function and Performance Index:

Torque indication error: <± 0.2 % F · S   
Sensitivity: 1±0.2 mv / V              
Nonlinear: ≤±0.2 % F·S    
Repeatability: ≤±0.2% F·S      
Lag: ≤0.2 % F·S       
Zero drift (24 hours) : ≤0.1 % F·S   
Output impedance: 1KΩ ±3Ω           
Insulation resistance: >500MΩ
Static overload: 150 %    
Breaking load: 200 %  
Power supply voltage:DC±15V±5% ,DC 24V( optional)
Speed output signal: 60-2000 pulse / turn(optional)
Zero torque frequency output:10KHZ       
Positive torque full scale frequency output :15KHZ    
Reverse torque full scale frequency output :5KHZ      
Signal duty ratio: (50±10)%  
Power consumption of the sensor: 4W
Temperature when use: -20 ~ 70ºC 
Relative humidity: ≤90%RH 

Related Products

Main application: 

DWZ disc eddy current brake is mainly used as load in loading dynamometer equipment. it is experimental apparatus which can measure the dynamic mechanical properties, especially in dynamic loading test whose power value is small or tiny, also can be treated as suction power devices of other dynamic devices. 

DW series disc eddy current dynamometer is, is that add device for measuring torque and rotational speed on DWZ series disc eddy current brake, it is experimental apparatus which can measure the dynamic mechnical properties, especial in dynamic loading test whose power value is small or tiny.

CW eddy current brake as a load is mainly used to measure the mechanical characteristics of inspection equipment, it and other control instrument (including loading apparatus, torque speed sensor and torque power acquisition instrument etc.) can be composed of eddy current dynamometer can be used for performance testing of the internal combustion engine, motor, gas turbine, automobile and its dynamic mechanical components, compared with other power measuring device, the CW series power measuring device has the advantages of reliability, high stability and practicability.

Company Information:

Product Line:




Worm Gearboxes in Conveyor Systems: Benefits and Considerations

Worm gearboxes play a crucial role in conveyor systems, offering several benefits and considerations for their effective integration:

  • Space Efficiency: Worm gearboxes have a compact design, making them suitable for applications with limited space, such as conveyor systems.
  • High Reduction Ratios: Worm gearboxes can achieve high reduction ratios in a single stage, allowing for slower conveyor speeds without sacrificing torque.
  • Self-Locking: Worm gearboxes have inherent self-locking properties, preventing the conveyor from moving when the motor is not actively driving it.
  • Directional Control: Worm gearboxes facilitate directional control, enabling the conveyor to move forward or reverse as needed.
  • Low Noise: Worm gearboxes often produce lower noise levels compared to other gearbox types, contributing to quieter conveyor operation.

However, there are also considerations to keep in mind when using worm gearboxes in conveyor systems:

  • Efficiency: Worm gearboxes may have lower mechanical efficiency compared to some other gearbox types, leading to energy losses.
  • Heat Generation: Worm gearboxes can generate more heat due to sliding contact between the worm and gear, necessitating proper cooling mechanisms.
  • Lubrication: Proper lubrication is critical to prevent wear and ensure efficient operation. Regular maintenance is required to monitor lubrication levels.
  • Load and Speed: Worm gearboxes are well-suited for applications with high torque and low to moderate speed requirements. They may not be optimal for high-speed conveyors.

Before integrating a worm gearbox into a conveyor system, it’s important to carefully consider the specific requirements of the application, including load, speed, space constraints, and efficiency needs. Consulting with gearbox experts and manufacturers can help ensure the right choice for the conveyor’s performance and longevity.

Slip Power Water Cooling: 10 Kw
Slip Power Self Cooling: 1.2 Kw
Warranty Period: One Year
After Sales Service: One Year
Current: 5 a
Allowable Rotational Speed: 250 R/Min


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 s

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.

peed 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 Standard Gearbox Test Bench Hydraulic Motor Test Bench Worm Gearbox   components of gearbox	China Standard Gearbox Test Bench Hydraulic Motor Test Bench Worm Gearbox   components of gearbox
editor by CX 2023-08-17