We frequently receive inquiries about lubricating sintered bearings in old record players, tape recorders, cassette recorders, film projectors, etc.
For this purpose, we recommend our TS5200 Oil Clock 992.
The TS5210 Gyrosynth 992 and TS5200 Clock 992 products are comparable in terms of formulation and performance characteristics. They feature a fully synthetic formulation based on various ester oils and have low viscosity. Gyrosynth 992 is designed for industrial applications in micro-precision engineering for the lubrication of precision ball bearings, micro-gears, radial and axial bearings, plain bearings, etc., where higher ambient temperatures may occur during continuous operation.
Clock 992 is used in watchmaking and precision engineering for the same technical applications, although operating temperatures in those environments tend to be lower. Clock 992 is therefore available in various small containers from the authorized dealers listed under “Where to Buy.”
Clock 992 can be used as a lubricant for sintered bearings. Typically, the sintered bearings are impregnated with the oil under vacuum to ensure that the oil penetrates all capillaries and pores.
If the oil is used for relubrication, it is miscible with standard mineral oil- and ester-based lubricants. It is not compatible with sintered bearings containing silicone oil, but these are mainly used in applications that must operate at temperatures as low as -40 °C. We do not assume that such lubricants were or are used in the sintered bearings of record players, tape recorders, cassette recorders, and film projectors.