Precision Ball Bearings
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Precision Ball Maintenance - Best Practices for Maximizing Ball Life


Precision balls and ball bearings are critical components in many mechanical systems and equipment. Proper handling and maintenance is key to maximizing their lifespan and preventing premature failures. In this blog post, we'll provide an overview of best practices for cleaning, installing, lubricating, and storing precision balls and ball bearings. Following these simple procedures will help prevent damage and wear and extend the usable life of your precision balls.

Cleaning Precision Balls:

  • Use a lint-free cloth dampened with a cleaning solvent to gently wipe dirt, grease and contaminants from the ball's surface. Avoid abrasives.
  • For thorough cleaning, an ultrasonic cleaner with a precision ball cleaning solution can be used to agitate and dissolve contaminants.
  • Rinse thoroughly in a solvent bath afterwards to remove any residual cleaning solution.
  • Allow to air dry fully before re-lubricating or reinstalling.

Installing Precision Ball Bearings:

  • Avoid pressing directly on the balls when installing ball bearings, as point stresses can damage the sphere. Use sleeves or appropriate tools.
  • Align the bearing properly to the shaft or housing bore when inserting to prevent damaging eccentric scratches.
  • Apply installation force slowly and evenly via a press or by tightening the retaining nut methodically.
  • Ensure proper clearance between the inner and outer race to allow free rotation.

Lubricating Precision Balls:

  • Apply only small amounts of lubricant specifically designed for precision balls. Excess lube attracts contaminants.
  • Use sparingly and spread evenly over the ball surface to create a thin film for smooth rolling with low friction.
  • Periodically wipe and reapply fresh lubricant after cleaning to prevent varnish buildup.

Storing Precision Balls:

  • Keep in a dry, clean environment away from vibration, humidity, temperature swings and contaminants.
  • Individual Precision balls can be stored in partitioned trays, cases or ball coves to prevent contact during storage.
  • For assemblies, support the inner and outer race so as not to put pressure on the balls during storage.
  • Rotate stock to use older inventory first and prevent prolonged storage.


Following basic procedures for precision ball handling can significantly increase their lifespan and prevent damage from mishandling or improper maintenance. With proper cleaning, installation, lubrication and storage, precision balls will provide many years of smooth, reliable operation. Contact us if you need any assistance maintaining the precision ball components in your mechanical equipment.