We offer needle roller cagesneedle roller cagesneedle roller cages for general usage are bearings, which display excellent rotational performance. Since they have a large lubricant holding capacity, lightweight and high rigidity, they can withstand severe operating conditions such as high-speed rotation and shock loads, and they are used in wide range of applications. Available in sizes from bore size: 3 mm to 200 mmseries: kt (k), ktw (k.zw) ktz & ktv used for engines available in big and small ends.