KP6A bearing is one special size ball bearing. It is correspond with USA Military Standard(MS 27461).
1. Bearing material: chrome steel SAE 52100 material for rings and balls.
2. Bearing size: ID 9.525 mm/0.375" * OD 22.22 mm/0.875" * W 7.95 mm/0.313" / W1 6.35 mm/0.25"(W: width of inner ring, W1: width of outer ring).
3. Bearing plating: bearing surface with Cadmium Plated except bearing bore.
4. Bearing cage: no cage, it is Full Complement Ball type.
5. Bearing lubrication: Mobil #28 Synthetic Aviation Grease.