Type CSK is a sprag type free wheel integrated in to a 62 series Ball Bearing, (except sizes 8 and 40) it is bearing supported, delivered grease lubricated and protected against dust of more than 0.3 mm the use of additional “nylos” type seals is recomended especially when the working temperature exceeds 50o C. Oil bath lubrication is also possible. All the CSK versions are equipped with “formchromed” sprags. This process increases several times the over running life time. (Series includes CSK, CSK-K/CSK-KK, NSS, NFS, B200 Series and BWC/DC Rachet cages