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Special Requirements in Miniature Bearings (MSD):
August 28, 2006
Ball bearing assemblies are an integral part of high performance and precision applications. They mate parts, control movement, locate components, limit torque, and provide rotational or oscillating functionality. Miniature and instrument ball bearings are used in many high precision applications.
Pacamor Kubar Bearings manufactures for such industries as aerospace, aircraft instrument, medical and dental instruments, computers, flow meters, pick and place robots, and many others. High speed miniature bearings in dental handpieces travel at speeds approaching 500K RPM. Flow meter bearings travel at slower speeds but have their own unique set of demands depending on pressure, corrosive conditions and other environmental factors. Many bearings are used in vacuum environments, whether man made vacuums or the natural vacuum of space. To ensure bearings function at their best in the assembled unit, many bearing attributes must be taken into consideration. Radial play, bearing tolerances, material, preloading, lubrication, and coding are just a few examples of design features that can enhance bearing performance.
Within the assembled mechanism, the fit of the ball bearing on its mating components is vital for maximizing bearing life. If the fit is too loose, the bearing will slide around on the shaft eliminating the advantages gained by selecting a ball bearing. If the fit is too tight, the bearing integrity may be compromised by reduction of radial play in the assembly. The perfect fit will enable the bearing to run at peek performance and maximize bearing life in the end product.
Read the entire article as published in MSD