Linear ball bearings Manufacturer: INA. Series: KB, KBO, KBS, KH, KN, KNO, KS and KSO. Linear ball bearings, also known colloquially as ball bushings or ball bushings. The linear bearings are available as a lightweight series, a compact series and a solid series. PP = lip seals made of NBR on both sides of the bearing, AS = relubricatable. RR = Rust protection through special Corrotect® coating (prices for larger quantities on request)









