Confirm the complete part number before ordering

For a correct NSK replacement, the bearing must match the full machine specification, not just the bore, OD and width. Check these four points against the old bearing and your machine documentation.

• 01

  Seals and shields

  Open, shielded or sealed execution must follow the original design. Short stock codes on repair lists often drop the seal suffix.

• 02

  Internal clearance and accuracy class

  Clearance and tolerance class decide running fit and heat at speed. Quote the full NSK suffix, not a size match.

• 03

  Matched sets

  Spindle and ball screw support positions often run as matched sets. State the arrangement and set quantity per position.

• 04

  Preload and bearing position

  List the preload requirement, and separate drive-end and non-drive-end bearings so quantities and positions stay correct.

Only have the old bearing? Send the marking photos for identification