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FAG bearings, the speed limit do not generate friction heat can cause burns continuous rotation of the limit value. FAG Bearings speed limit by FAG bearing size, type, lubrication, precision, oil-gap, load and other factors, but the most important or lubricants and the impact of environmental temperature. Rotating at high speed, especially speed close to or exceed the size of table records the limit speed, the principal should pay attention to the following matters:

(1) the use of high-precision FAG bearings;

(2) FAG Bearing internal clearance is more analysis, consider the temperature rise produced by FAG Bearing internal clearance reduction;

(3) analysis of lubrication. For high-speed rotation cycle lubrication, jet lubrication, oil mist lubrication and oil lubrication lubrication methods.

(4) analysis of the type of cage materials. For high-speed rotation, suitable for cutting of copper alloy or phenolic resin cage. There is also a synthetic resin molding for high-speed rotating cage;

For small machinery, hand rotation to confirm whether the rotation smooth. The inspection items include:

1, with or without nick, indentation caused by dysfunctional;

2, whether due to poor installation, mount processing bad moment instability;

3, whether the clearance is too small, and installation errors, seal friction torque and so on.