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Help CenterASTM D4290 ADDITION Automotive Wheel Bearing Grease Leakage Tendencies Tester Under Accelerated Conditions
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Automotive Wheel Bearing Grease Leakage Tendencies Tester Under Accelerated Conditions
Product model: JF25962
Product Introduction
This instrument is measuring a laboratory procedure for evaluating leakage tendencies of wheel bearing greases when tested under prescribed conditions.
Testing Principles: The test grease is distributed in a modified, automobile front wheel hub-spindle-bearings assembly. While the bearings are thrust-loaded to approximately 111N, the hub is rotated at 1000 rpm and the spindle temperature maintained at 160.0 °C ± 1.5 °C for 20 h. Leakage of grease or oil, or both, is measured, and the condition of the bearing surface is noted at the end of the test.
Technical Performance:
1. Applicable standards: ASTM D4290
2. Heating method: Heating by electric heating wire
3. Measuring range: Rt ~ 200 ℃
4. Temperature control method: PID digital temperature controller
5. Timing control: Digital timer, 0-99 hours
6. Load loading: Spring loaded
7. Overload protection: Current overload protector
8. Speed control: Speed displayed by digital display meter
of stepless speed regulation
9. Working power supply: AC220/240V, 50/60Hz
10. Engine power: 2000W
11. HS Code: 9027899090
Main Feature
1. Double compressor superposition refrigeration ensures the supply of cooling capacity;
2. The digital display shows the working time, and automatically stops the machine and gives an alarm after the test；
3. Stepless governor control speed 1000r/min, real-time digital display speed;
4. Spring compression loads the bearing load, with a loading force scale for easy operation;
5. Sliding high-temperature box door with safety protection device;
6. Microcomputer temperature controller, PT100 temperature sensor with high precision;
7. Overload protection device can delay 30s.
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