A properly preloaded bearing will maximize the life of your bearings in their application. Preloading does this by ensuring that the rolling elements and the raceways are in constant contact; this will keep the bearing rolling instead of sliding.
BMC has the capability to change preloads on angular contact bearings to ensure your bearings are running correctly in your application. All of the bearings we preload are held to a tolerance of +0.0000’’/-0.0001 to ensure correct running accuracy and life of the bearing. All of our preloaded and flush ground bearings are 100% inspected in our temperature-controlled facility.
BMC can also change the arrangement of your angular contact pairs. (DB, DF, tandem, universal). If you are unsure of the arrangement, we can change them to universal to run in an application at any arrangement.
Need to replicate an existing preload, but have no idea on arrangement or loads? BMC can take your current bearing sets, verify, and grind brand new sets to match, No Hassle.We also can preload and pair radial ball bearings to your customers’ specific requirements.
Most preload values on angular contacts are designated by light, medium, and heavy preload identifiers. This value plays a crucial part in determining which preload is needed in your application. There are some cases where an application might need a custom preload that is in between one of the preload values listed by the manufacturer. We can change to specific values for any application.
Paired bearings: DUL, DUM, DUH
Single bearings: SUL, SUM, SUH
Triplex bearings: DUDL, DUDM, DUDH
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