Xtb drawn cup needle clutch hf, hfz series is composed of thin wall punched outer ring and plastic retainer. There is a clamping slope which holds the needles tightly on the inradius surface of the alloy steel punched out ring. The abrasion resistance and load capacity is greatly increased after special heat treatment. Metal springs are fitted on the plastic retainer which keeps the correct movement of the needles while the needles are used as clamping unit at the same time. Xtb drawn cup needle clutch and bearing assembly hfl, hflz series has a two-in-one supporting bearing which can be a special space-saving support. The supporting bearings fitted be the two sides of the needle clutch bear the radical load. The support bearings are needles and the plastic retainer.