China Best Sales Gearbox Test Bench Hydraulic Motor Test Bench Worm Gearbox bevel 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:




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

Advantages of Using a Worm Reducer in Mechanical Systems

Worm reducers offer several advantages that make them suitable for various mechanical systems:

  • High Gear Reduction Ratio: Worm gearboxes provide significant speed reduction, making them ideal for applications that require a high gear reduction ratio without the need for multiple gears.
  • Compact Design: Worm reducers have a compact and space-saving design, allowing them to be used in applications with limited space.
  • Self-Locking: Worm gearboxes exhibit self-locking properties, which means that the worm screw can prevent the worm wheel from reversing its motion. This is beneficial for applications where the gearbox needs to hold a load in place without external braking mechanisms.
  • Smooth and Quiet Operation: Worm gearboxes op

    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.

    erate with a sliding motion between the teeth, resulting in smoother and quieter operation compared to some other types of gearboxes.

  • High Torque Transmission: Worm gearboxes can transmit high torque levels, making them suitable for applications that require powerful torque output.
  • Heat Dissipation: The sliding action between the worm screw and the worm wheel contributes to heat dissipation, which can be advantageous in applications that generate heat during operation.
  • Stable Performance: Worm reducers offer stable and reliable performance, making them suitable for continuous operation in various industrial and mechanical systems.

Despite these

Materials Used for Worm Gears

Worm gears are manufactured using a variety of materials to meet different application requirements. Some commonly used materials for worm gears include:

  • Steel: Steel is a popular choice for worm gears due to its strength, durability, and wear resistance. It can handle heavy loads and is often used in industrial applications.
  • Bronze: Bronze offers good lubricity and is commonly used for the worm gear (worm) component. It provides effective wear resistance and works well in applications where quiet operation is essential.
  • Cast Iron: Cast iron is known for its high strength and durability. It’s often used for worm gears in applications where shock loads or heavy-duty conditions are expected.
  • Aluminum: Aluminum worm gears are lightweight and corrosion-resistant, making them suitable for applications where weight reduction is important.
  • Plastic: Some worm gears are made from plastic materials such as nylon or acetal. These materials are often chosen for their self-lubricating properties and quiet operation.
  • Composite Materials: Composite materials can offer a combination of properties, such as lightweight construction and corrosion resistance. They can be suitable for specific applications.

The choice of material depends on factors such as the application’s load, speed, operating environment, and required performance characteristics. It’s important to consider these factors when selecting the appropriate material for worm gears to ensure optimal performance and longevity.

advantages, it’s important to note that worm gearboxes also have limitations, such as lower efficiency compared to other gear types due to the sliding motion and potential for higher heat generation. Therefore, selecting the appropriate type of gearbox depends on the specific requirements and constraints of the application.

China Best Sales Gearbox Test Bench Hydraulic Motor Test Bench Worm Gearbox   bevel gearbox	China Best Sales Gearbox Test Bench Hydraulic Motor Test Bench Worm Gearbox   bevel gearbox
editor by CX 2023-08-16