Description: STRUCTURE OF BEARING: W : ONE-PIECE STEEL CROWN TYPE J : TWO-PIECE STEEL RIBBON TYPE TW : ONE-PIECE NYLON CROWN TYPE The
stainless steel pressed cage is inner ring guided. It shows excellent performance in low torque, low speed applications. Consists of two mating
steel pressings, the cover side and the finger side.Usually guided by the rolling elements and designed to reduce frictional torque. Moulded nylon cage. Reduces the fluctuation in running torque. Suitable for high speeds.Guided by the rolling elements.