Stacked thrust bearing

When the inside and outside boundary dimensions of a thrust bearing are limited, but additional capacity is required, enough axial height is generally available to create a stacked assembly.

Stack assemblies are created by adding load-equalization races or spacers ground in matched sets that enable shared load distribution. Stacks may be made up from Cylindrical, spherical, or tapered roller thrust bearings.

The most common stacked bearing is a simple tandem cylindrical roller thrust bearing. However, multi-high assemblies of 3, 4, or 5 high have also been successfully designed.

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Various stack sizes	Cut-away of a standard tandem cylindrical roller thrust bearing stack	Cut-away of a 4-high cylindrical roller thrust bearing stack

A spherical roller bearing may be combined in tandem or in multi-high stacks, with or without additional modification, depending on size.

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Components of a tandem spherical roller thrust bearing stack	An assembled tandem spherical roller thrust bearing stack	An assembled 3-high spherical roller thrust bearing stack

Tandem cylindrical thrust bearing design	Multi-high cylindrical roller thrust bearing design
A dual acting cylindrical roller thrust bearing design	Tandem spherical roller bearing design
Three-high spherical roller bearing design