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1. Main uses
The GPM-30 rolling contact fatigue test bench is mainly used to simulate the failure test of rolling contact parts. A constant load is applied to the rolling or rolling plus sliding contact specimen, so that the contact surface is subjected to cyclic contact stress.By controlling and changing load, speed, slip rate, time, friction partner material, surface roughness, hardness and other parameters, the test is conducted to evaluate the comprehensive performance of the sample material.
The machine has a horizontal frame structure, and is controlled by imported AC servo motors for loading and rotation. Each test parameter can be set in units, which is easy to operate and the test readings are accurate and reliable. Each parameter can be easily controlled through a computer. The friction torque-time, test force-friction coefficient and other curves can be displayed in real time, and the test curve can be recorded, saved, and printed.

2. Main technical specifications and technical indicators
serial number | Project name | Technical indicators |
1 | Maximum test force | 40kN |
2 | Test force accuracy | ±1% |
3 | Maximum test torque | 50Nm |
4 | Test torque accuracy | ±2% |
5 | Test speed of driving shaft and accompanying test shaft | 30~1500r/min |
6 | Speed error | ±1% |
7 | RPM display range | 0~999999999 |
8 | Time display range | 0~99999s or min |
9 | Test ring size | φ45×75 |
10 | Testing machine dimensions (mm) | About 1850×960×1210 |
11 | Testing machine net weight | About 1800kg |
12 | Rated power | 25KW |