BU Support Bearing Units

The BU Support Bearing Units are specially designed for use with planetary roller screws. The design incorporates a set of 7300 series angular contact ball bearings (up to 6) as well as lip seals on each end. Each unit comes with a precision locknut. These can be mounted to the roller screw before shipment to the customer.


    • For shaft with a bearing journal diameter of 12 to 100 mm
    • Ca (dynamic axial capacity) up to 1158 kN [260 000 lb]
    • Greased for life
    • Includes Lip Seals on both ends
    • Includes a precision locknut


A neatly designed package which inlcludes the bearings, seals and locknut. Specifically designed to be ued with high capacity rollers screws.

BU Mounted on a Roller Screw

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catalogue 2019