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Significance and Use
Self-lubricating bushings with low creep rates are used in hydropower turbines and other applications in which bushing distortion could cause misalignment of shafts and linkages.
An assumption is made that if the creep is satisfactory at 55 160 kPa (8000 psi), it will also be satisfactory at lower pressures.
1.1 This test method determines the amount of creep exhibited by self-lubricating bushings exposed to a high load for an extended period of time.
1.2 This test method is designed to reproduce conditions typical of those encountered by trunnion bushings in hydropower applications and any other bushings subjected to high continuous loading and low-speed oscillating applications.
1.3 This test method is conducted on cut segments of the bushings.
1.4 The values given in SI units are to be regarded as the standard in all property and dimensional tables.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.
Note 1—There is no known ISO equivalent to this standard.
ICS Number Code 23.100.99 (Other fluid power system components)
UNSPSC Code 31171600(Bushings)
ASTM D7107-04(2010), Standard Test Method for Creep Measurement of Self-Lubricating Bushings, ASTM International, West Conshohocken, PA, 2010, www.astm.orgBack to Top