High speed miniature ball bearing 688 zz details

Miniature ball bearing 688 zz is simple in design, non-separable, suitable for high and even very high speeds and are robust in operation, requiring little maintenance.Miniature ball bearing 688 zz has higher load ratings for their size than shallow-groove , but are also less tolerant of misalignment of the inner and outer races.

miniature ball bearing 688 zz is the ideal choice for compact and high-performance designs, capable of running at low friction and high speed, and minimizing the need for later maintenance. These silent-running bearings are strong and durable, and can withstand light to moderate radial and thrust loads, and are available in a variety of types and designs.

688 zz main purpose

688 zz is suitable for all kinds of industrial equipment, small rotary motors and other high-speed and low-noise fields, such as: office equipment, micro motors, instrumentation, laser engraving, small clocks, soft drives, pressure rotors, dental drills, hard disk motors , Stepper motors, video recorder drums, toy models, computer cooling fans, currency counters, fax machines and other related fields.

Causes of miniature bearing 688 zz failure

About 40% of the failed 688 zz miniature deep groove ball bearingare caused by dust, dirt, debris contamination and corrosion. Pollution is usually caused by incorrect use and poor use environment. It can also cause torque and noise problems. The failure of miniature bearings caused by environment and pollution can be prevented, and the cause of such failure can be determined by simple visual observation. As long as the use and installation are reasonable, the erosion of 688 zz miniature bearing is easy to avoid. The feature of erosion is that there are indentations on the raceway of the 688 zz miniature bearing ring caused by impact load or incorrect installation. Erosion usually occurs when the load exceeds the yield limit of the material. If the installation is not correct so that a certain load traverses the miniature bearing ring, corrosion will also occur. The pressure pits on the miniature bearing ring can also generate noise, vibration and additional torque.

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