NSK adapter and withdrawal sleeves

Used to mount a bearing with a tapered bore onto a cylindrical shaft, NSK manufactures adapter and withdrawal sleeves to fit a wide range of shaft sizes. 

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How do NSK adapter and withdrawal sleeves work?

Adapter Sleeves

Adapter Sleeves are supplied with a lock nut and locking washer. They have a slotted design and an external taper.Adapter sleeves tend to be more popular than withdrawal sleeves, as they allow bearings to be mounted directly on to smooth shafts. They are easier to mount in comparison to a withdrawal sleeve and require no additional location on the shaft.

Withdrawal Sleeves

Bearings on withdrawal sleeves must be mounted against a fixed abutment. Withdrawal sleeves are slotted, have an external taper, and are also coated with a preservative.

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