JTEKT-KOYO 4203 Deep Groove Ball Bearing - 17 mm ID, 40 mm OD, 16 mm Width industrial hardware Suitable for bits with a

Suitable for bits with a 1/4" external hexagon drive as per DIN ISO 1173-C 6

spare foam insert for Wera item 9784

They are typically used together with SKF housings in Y-bearing units

Angular Contact Ball Bearing sealed design and lightweight cage

JTEKT-KOYO 4203 Deep Groove Ball Bearing - 17 mm ID, 40 mm OD, 16 mm Width industrial hardware Suitable for bits with aDeep Groove Ball Bearing JTEKT KOYO deep groove ball bearings are versatile, robust, and accommodate radial and axial loads in both directions. Their simple design, low friction, and high speed capability make them suitable for a wide range of industrial applications, from electric motors to gearboxes. Sealed and shielded variants protect against contamination, while open versions allow easy lubrication.