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Koehler K18595 High Temperature Wheel Bearing Grease Tester
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29 Jan 2020
United States
1 Pieces
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Spesifikasi

Spesifikasi Koehler K18595 High Temperature Wheel Bearing Grease Tester

Test Method

Evaluates the high temperature stability of automotive wheel bearing greases in a modified automotive front wheel hub-spindle-bearings assembly. The ASTM D3527 Life Performance test employs severe conditions–25 lbf (111N) thrust load, 1000rpm, 160°C spindle temperature –to induce grease deterioration and failure. The test continues in a 20/4 hour on/off cycle until grease breakdown causes measured drive motor torque to increase past an established end point. The number of hours to failure is the test result. The ASTM D4290 Accelerated Leakage Tendencies procedure employs similar test conditions for a 20 hour period, after which leakage of grease and oil is measured and the bearings are washed and examined for deposits of gum and varnish.

Specifications

Conforms to the specifications of:

ASTM D3527, D4290, D4950

Digital controls and displays:

Timer: on/off cycle and real time
Chamber Temperature: °C
Spindle Temperature: °C

Motor rpm: 0-1725rpm

Motor Torque: current draw

Elapsed Time: 9999.9 hr.

Maximum Temperature: 177°C (350°F)

Alat Laboratorium Umum

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