On the supporting part of the machine, in order to prevent the tapered bearing inner ring and shaft, the outer ring and shell hole relative slip occurred in the operation of the machine, must choose the right fit. A small amount of interference, will cause withsliding, lead to wear, damage to the shaft or housing surface, wear powder into the thin section bearing internal, will cause vibration and heating, and cause failure. The amount of interference is too large, will cause the bearing clearance work greatly reduced or completely disappeared, normal operation so as to affect the bearing or prematurefailure.
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