Refers to metric series miniature bearings, diameter less than 9mm; Inch Series, diameter less than 9.525mm in all kinds of bearings! The main materials are carbon steel, bearing steel, stainless steel, plastics, ceramics, etc., which can be done a minimum internal diameter of 0.6mm, general internal diameter of 1mm more.
2 Features
In the ultra-small aperture miniature bearings, agricultural bearings deep groove ball bearing type miniature metric of 68 series, 69 series, 60 series, Inch R series of six kinds, on this basis, can be divided into steel dust band ZZ cover bearing series, with RS rubber seals series of miniature bearings, Teflon bearing seals series and with flange wall series and so on.
Three main purposes
Miniature Bearings for all types of industrial equipment in the field, small rotary motor high-speed low-noise, such as:
Office equipment, micro-motors, instrumentation, laser engraving, small clocks, soft drive, pressure rotor, dental drills, hard drive motors, stepper motors, VCR drum, toys, models, slewing bearing computer cooling fan, cash registers, fax machines etc. related fields.
Miniature Bearing Failure
About 40% of the failures miniature ball bearings are contaminated by dust, dirt, debris and corrosion. Pollution is usually caused by improper use and poor use of the environment, it can also cause problems torque and noise. Miniature bearing failure by the environment and pollution generated can be prevented, but by simple visual observation can determine the cause of such failure. As long as the reasonable use and install, miniature bearings erosion is easy to avoid. Erosion is characterized in miniature bearing ring raceway indentations left by shock loads or incorrect installation produced. Erosion usually occurs when the load exceeds the material yield limit. If not properly installed so Other bearing that the load across a miniature bearing ring will produce erosion. Also miniature bearing ring indentation on noise, vibration, and additional torque.
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