Behavior of lubricating greases in rolling-contact bearings at low temperatures

Journal Article · Sun Jan 01 04:00:00 EST 1984 · Chem. Technol. Fuels Oils (Engl. Transl.); (United States)

OSTI ID:6726650

Lagunov, V B; Goloshchapov, G A; Korneev, S V; Svechinkova, F I

This article examines the process of grease mixing in ball bearings in a simulation of the operation of a frictional component in a cold chamber down to -60/sup 0/C. The greases Solidol S, Litol-24, TsIATIM-201, and EF-507 were tested in a specially designed test stand with test sections equipped with covers with singlegroove labyrinths that do not prevent grease throwout. Two No. 407 bearings were operated simultaneously in comparative tests on the greases with a load of 1.75 kN and an inner race speed of 950 rpm. A thermal calculation showed that at the load and speed used in the tests, the temperature of the friction unit should be 10-15/sup 0/C higher than the air temperature in the chamber. It is determined that the greases TsIATIM-201, Litol-24, and EF-507 are serviceable in components with rolling-contact bearings at ambient air temperatures of -50 to -60/sup 0/C; that the Solidol S grease, for which the standard GOST 4666-76 calls for operating temperatures down to -50/sup 0/C, operates more poorly under these conditions, and the wear rate of the rolling elements is considerably greater; that the character of operation of the lubricant in rolling-contact bearings at low temperatures is similar in general form to an autooscillatory process; that a leveling of the oscillations corresponds to a critical temperature; and that with a further reduction of temperature, the bearing wear increases.

• Research Organization: Siberian Automotive and Highway Inst.
• OSTI ID: 6726650
• Journal Information: Chem. Technol. Fuels Oils (Engl. Transl.); (United States), Journal Name: Chem. Technol. Fuels Oils (Engl. Transl.); (United States) Vol. 19:5-6; ISSN CTFOA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
BALL BEARINGS
BEARINGS
COMPARATIVE EVALUATIONS
CRITICAL TEMPERATURE
FRICTION
GREASES
LOADING
LOW TEMPERATURE
LUBRICANTS
LUBRICATION
MATERIALS HANDLING
MATERIALS TESTING
MIXING
OPERATION
OSCILLATIONS
PHYSICAL PROPERTIES
SIMULATION
TESTING
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VELOCITY
WEAR