10—Bearing Handling

Since bearings are precision machine elements, their performance may suffer if they are handled or stored improperly. Take the following precautions after purchase to ensure that bearings operate properly to their expected life.

Precautions for Handling Bearings

Rolling bearings are precision components and should be handled with the utmost care.
Incorrect handling prevents bearings from reaching their expected performance, no matter the type of bearing used. ​

Basic Handling Guidelines

  • Keep Bearings and Surroundings Clean
    Dust and contaminants that enter the bearing harm lubrication performance and can lead to damage that reduces service life.
    Prevent dust and other foreign matter from entering the bearing.
  • Handle Carefully
    Avoid scratches, cracks, dents, and other damage from strong impacts.
  • Use Proper Tools
    General-purpose tools can cause injuries and generate unexpected bearing loads.
  • Prevent Corrosion
    Even sweat on the hands can cause rust. Keep hands clean and use gloves whenever possible.
    Monitor for rust caused by corrosive gases or moisture in the environment.

Bearing Storage

Bearings are treated with a rust preventive before they are packaged. Poor storage conditions greatly reduce the effectiveness of anti-corrosion measures, so give careful consideration to where and how bearings are stored.

How to Store Bearings

  • Bearing Storage Location
    Environments with high heat or humidity significantly reduce the effectiveness of rust preventives/inhibitors (anticorrosive agents) and are not suitable for storage. A location outside of direct sunlight with low humidity and a stable temperature is recommended.
  • Important Points When Storing Bearings
  1. Consider the size and weight of the bearings and how they will be stored and retrieved safely. Avoid any impacts during storage/retrieval and ensure space and the necessary equipment for transport. 
  2. Shelving at least 30 cm above the floor is recommended. Do not place bearings directly on the floor. 
  3. When stacking bearings, consider stability and avoid damage to packaging by adjusting the stacks for the size and weight of the bearings.