JTEKT-KOYO 6308-C4 Deep Groove Ball Bearing - 40 mm ID, 90 mm OD, 23 mm Width Linear Plain Bearing Unit using maintenance-free or steel/steel sliding

using maintenance-free or steel/steel sliding contact surfaces

creating a mechanical self-locking grip that resists loosening from vibration

Tube OD: 1/4″

Bore Diameter 17 mm Overall Height 12 MM Outside Diameter 40 mm Overall Length 12 MM Bore Type Round Closure Type Single Shielded Overall Width 40 MM Outer Ring Width 12 mm Cage Material Steel Precision Rating ABEC 1 (ISO Class Normal) Operating Temperature Range Maximum of +250 °F Dynamic Load Capacity 9550 N Fillet Radius 0

The impact sleeves are spare parts for the steering head bearing installation kits of series 71-M

JTEKT-KOYO 6308-C4 Deep Groove Ball Bearing - 40 mm ID, 90 mm OD, 23 mm Width Linear Plain Bearing Unit using maintenance-free or steel/steel slidingDeep 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.