NSK ROLLED BALL SCREWS R SERIES - Dimensor

(1) Support units1 ClassificationBall screw support units are classified intocategories by their shape (Table I-6.6). Select thetype that is appropriate for you to use.2 Features• Short delivery time: Standardized items in stock• Use most suitable bearingsOn the fixed support side, the angular contact ballbearing is used. It has great rigidity and low frictiontorque which match the rigidity of the ball screw.The thrust angular contact ball bearing with highprecision and great rigidity is another choice for thefixed support side.• High dust prevention, and low friction torqueOil seal is installed in small clearance on the fixedsupport side. A deep-groove ball bearing with ashield on both sides is used on the simple supportside. This minimizes friction torque.• Lock nut is provided.A lock nut of fine grade finish is provided to fix thebearing with high precision.3 Reference number and applicable ball screwSupport unit product code(For light load) WBK 08 S-01Nominal sizeSupport side code No code:Fixed support sideSSF:Simple support sideR:Fixed support side (support kit)Design serial numberNominal size(For heavy load) WBK 25 DF-31Bearing combinationDF (duplex), DFD (triplex), DFF (quadruple)Design serial numberB274B274