Standard test method for torque stability wear and brine sensitivity evaluation of ball joint greases

Journal Article · Sat Jan 01 04:00:00 EST 1977 · Annu. Book ASTM Stand.; (United States)

OSTI ID:6724627

Two procedures, the torque stability test and the brine sensitivity test, are described for evaluating the stability of greases for use in automobile chassis ball joints. The lubricated joint stud and bearing, confined in a fixed housing, is rocked through an arc under prescribed conditions of rocking frequency, rocking amplitude, load, and time. The noise, wear, and torque are observed and recorded. Both the torque stability test, which provides a measure of the frictional and antiwear properties of grease when subjected to load and prolonged working under oscillating motions, and the brine sensitivity test, which measures the ability of a grease to prevent noise from an oscillating ball joint when that joint is exposed to brine, are intended as screening aids in selection of greases. The apparatus and procedure for both the tests are described in detail. The apparatus is depicted both pictorally and schematically.

• OSTI ID: 6724627
• Journal Information: Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 25; ISSN ASTSA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000* -- Petroleum-- Properties & Composition
BALL BEARINGS
BEARINGS
BRINES
GREASES
LUBRICANTS
NOISE
PHYSICAL PROPERTIES
TORQUE
WEAR