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Condition Analysis Reclamation (CAR)



NES’ industrial bearing Condition Analysis Reclamation (CAR) program provides customers with the highest quality recondition bearings. Through Condition Analysis Reclamation the reconditioned bearing can achieve 87 to 99 percent of the life of a new bearing. Throughout NES’ various inspection and reconditioning processes each of these levels is achieved.

Reclamation Level I

Processing bearings involves inspecting a used bearing and checking/comparing it with new bearing drawing requirements. This process involves:

  • Demagnetization.
  • Cleaning.
  • Nondestructive testing, if applicable.
  • Visual/microscopic inspection.
  • Minor repair: buffing and polishing of inactive and active surfaces, stoning of nicks and gouges in corner radii
  • Dimensional inspection.
  • Reassembly (to include retainer riveting or snap-in retention)
  • Dynamic testing (if required): rotation of bearing rings to permit evaluation of noise level, torque characteristics, and/or similar functional parameters.
  • Lubrication/preservation.
  • Packaging.

Refurbishment Level II

Refurbishment of bearings is rework of bearings that goes beyond the scope of reclamation. This encompasses all of the operations of reclamation plus one or more of the following:

  • Replacing rolling elements.
  • Reworking/replacing retainers.
  • Interchanging used components and/or substituting new components to create a different assembly identity.
  • rinding or polishing and/or plating of mounting surfaces as necessary to return to original drawing dimensions.
  • Honing (superfinishing) raceways not to exceed 0.0005 in. total metal removal per surface.

Restoration Level III

Restoration of bearings involves the removal of material by grinding operation. This term encompasses all of the operations of reclamation and refurbishment plus one or more of the following operations:

  • Grinding races up to 0.003 in. per surface.
  • Installing oversize rolling elements.
  • Installing original or replacement retainer when required.

Remanufacture Level IV

Remanufacturing of bearings involves rework of bearings, where new components beyond the rolling elements and retainers are manufactured. This term encompasses all the operations of processing and may involve either refurbishing or regrinding of the old parts which are reused and one or more of the following:

  • Manufacturing of a new ring.
  • Manufacturing of a new retainer.

Pictured below, are the before and after pictures of a bearing that has been through the Condition Analysis Reclamation (CAR) process.

Additional Custom Bearing Manufacturing Links

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