Using a wave spring for bearing preload: How and Why

Using a wave spring for bearing preload: How and Why

Do you know why a bearing is designed? A bearing has several moving parts that operate as a single unit and is made to move freely. Accumulation of manufacturing and assembly tolerances might quickly result in issues. Preloading a bearing becomes helpful in this situation. A sustained axial load must be applied to a bearing in order to preload it. Here will see in detail about the bearing preload:

  • How do you preload a bearing?

You can preload a bearing using one of two methods. The first is solid preload, accomplished using a locking mechanism to secure the inner and outer races. Spring preload, produced by utilizing a spring to apply a continuous axial force on one side, is the more popular, easier, and less expensive technique. A Smalley single-turn wave spring provides the necessary preload force between the inner and outer races, which also corrects for any tolerance stack-ups or thermal mismatch. Both radially and axially, play is diminished.

  • Why do you preload bearings?

To preserve bearing longevity and functionality, the disc spring manufacturers in India use this play to control. The constant contact between the bearing type ball, needle, etc., and bearing races are made possible by preloading the bearing. Among other advantages, the disc spring washers sustained load eliminates axial and radial play. Your application will benefit from preloading because its primary goal is to lengthen bearing life.

  • Why use a wave spring for the preload on a bearing?

When used in conjunction with cyclic loading or thermal expansion, a wave spring can offer all the advantages of spring preloading. For a wide variety of applications in numerous industries, TFC offers a wide variety of wave springs.

Choosing the right wave washers for bearings is vital because every application differs. Standard bearing preload wave springs are available from TFC and are made for standard bearing sizes. It must be noted that total specifications will be a key consideration because inadequate or excessive preload on a bearing will affect its longevity and, in high vibration systems, increase noise production.

Proper material selection will also be essential because poor material selection can result in operational failure. TFC can provide wave springs in several alloys to match the operational requirements of an application, even though wave springs are available in both carbon steel and 17-7 stainless steel.

  • Advantages of Spring Preload

Preloading wave washers properly will increase bearing life. Using a spring as preload is vital for high-precision or high-speed applications since it virtually eliminates the need for retaining tighter tolerances and supports high operating speeds.


  • Axial and radial play control: Bearing races and ball complements mate consistently and accommodate dimensional variance.
  • Less wear on bearing: Wave design results in more load distribution between bearings.
  • Vibration and noise reduction: Even in high-vibration situations, quieter assemblies.
  • Eliminate ball skidding: Smooth movement is achieved by applying a constant force.
  • Precise shaft positioning: The wave spring keeps the shaft centered for the best centrifugal dispersal.


Based on the preload, you can choose the spring by approaching the LV Locking Device. They will guide you to choose the best one. The above listed is the clear guidance you need to know about how and why to use a wave spring for bearing preload.


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