NSK 51238-M Axial Deep Groove Ball Bearing - 190 mm ID, 270 mm OD, 62 mm Width Covers/Caps The Whittet-Higgins PW-30 is a

The Whittet-Higgins PW-30 is a precision lockwasher in the PW series

Other useful features:

The tool and drill holders with ratchet from series 280 are tool holders for thread cutting and reaming deep-seated workpieces

a hardened alloy compression ring of matching outside diameter

Provides clockwise torque-control and 45-tooth ratchet mechanism

NSK 51238-M Axial Deep Groove Ball Bearing - 190 mm ID, 270 mm OD, 62 mm Width Covers/Caps The Whittet-Higgins PW-30 is aAxial Deep Groove Ball Bearing NSK axial (thrust) deep groove ball bearings are designed to support pure axial loads and consist of shaft and housing washers and a ball and cage assembly. Single direction and double direction variants are available; single direction handles thrust in one direction only.