Home > Linear motion > Ball nuts & screws > Ball screw accessories > Ball screw support units > WBK40DF-31-NSK WBK40DF-31-NSK Ball screw support units Summers Code: WBK40DF-31-NSK Brand: NSK Category: Ball screw support units HS Code: 8482 99 00 90 Check Stock − + units Get a quote Product Details NSK Ball Screw Support Units Heavy load DF: Face t Additional information NSK Standard Ball Screws Compact FA Series Catalogue NSK Super Precision Bearings Catalogue NSK catalogue – but includes RHP