NSK RHP Ball Screw Support Bearings

Angular-contact support bearings for fixed and floating ball screw ends -- axial rigidity and precision positioning.

Support bearing function

Ball screw support bearings are angular-contact bearings arranged to absorb axial loads from the screw while controlling stiffness and thermal growth. A fixed end typically uses a preloaded pair; the floating end allows axial expansion.

NSK literature references BSN, BSF, WBK and TAC series for these arrangements. 60 degree contact angle designs are commonly cited for high axial rigidity in screw support applications.

Catalogue status

Model-level bore, contact angle and load data require governed NSK source verification. Send screw diameter, speed, axial load and mounting arrangement for engineering review.

Fixed vs floating

Fixed end carries axial load; floating end accommodates thermal elongation.

Preload

Preload increases stiffness but raises heat generation at high speed.

Sealing

Contact and non-contact seals for contamination control in machine tool environments.

Request an Engineering Quote

Share shaft bore, speed, torque duty and ordering designation for NSK RHP Ball Screw Support Bearings. Golden Bearing Company supports engineering-led quotation for industrial bearings and couplings.

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