Needle Bearing's character:The compare of the needle bearing's Lw and Dw (Lw/Dw) is above 3.The diameter of needle bearing is less than 5 millimeter.The basic structure of needle bearing includes a pair of ferrules, which are with leaded block border and oil hole, and a set of needles.It has tightened structure, little radial size and big charge capacity.It can only endure radial charge usually, and it can not endure axis charge.
