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What are the causes of overheating of servo motor bearings?

What are the causes of overheating of servo motor bearings?

Motor causes:
(1) the inner and outer rings of the bearing with too tight.
(2) parts of the shape and position tolerance problems, such as shaft, end cover, frame and other parts of the coaxiality.
(3) bearings do not fit the motor.
(4) bearing lubrication or cleaning is not clean, grease contains sundries.
(5) axis current effect.

Reasons for use:
(1) unit installation problems, such as coaxiality of  motor shaft and shaft of driving device does not reach the standard.
(2) pulley is pulled too tight .
(3) improper maintenance of bearings, grease or not regular replacement, deterioration or dry



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Advantages and disadvantages of rare earth permanent magnet synchronous motor compared with squirrel-cage asynchronous motor

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