Ball sets known as: ball sets, ball bushings, cage, ring, sand frame ball sets with high-precision axial motion and radial motion, with the shaft and the sleeve using interference fit, you can achieve seamless assembly, combination of high precision, so it is widely used in the mold industry, machinery and equipment industry, and high-precision operation or movement of the industry. Ball sets by the matrix material can be divided into: plastic, aluminum, copper categories. Ball sets are arranged by ball can be divided into: standard, high rigidity categories. Ball sets OD formula: OD ≈ ID + (ball diameter * 2) Ordering Information (Dimensions Note: ball sets used in combination with the shaft and the sleeve is actually slightly larger than the shaft diameter ball sets while slightly less than the sleeve diameter, ball sets The actual diameter: Shaft +0.5; ball sets an outer diameter: set diameter -0.5)