product description

FZH (copper-based), FZL (aluminum), FZP (resin base) to keep the ball solid, respectively, copper alloy, hard aluminum, POM resin matrix, and on its outer surface, processed orderly, appropriate size, shape special cavities, in its cavities inserts Rolling ball. Mouth using the latest circumferential groove ball lock technology, effective solution to the traditional lock ball and indentation style lock ball can not completely prevent the ball off problems. Hole bottom machined spigot 90 ° free rotation so that the ball in the hole without falling off. Because of a diameter greater than the wall thickness of the ball retainers, so when using the ball up to keep the circle, cylindrical surface, direct contact with the mating hole axis, the matrix (retainer) floating in the middle, and Matching the difference is less than the radius of the hole and shaft diameter steel balls, namely balls and match for the interference fit, with high accuracy, flexible shaft and bore relative motion. A retaining ring replacements.

Advantages and Uses

Traditional hole shaft having relative movement there is a certain gap, and sports a large coefficient of friction, the ball retainer after use, so that the shaft and bore no direct contact between the hole and the shaft, but by the middle of trace interference ball, thus high precision movement, rolling friction instead of dynamic friction, rolling flexible, low friction, long life, in both the rotation, another movement of the occasion, with no oil or fuel compatible with the shaft sleeve, although able to meet, but the movement precision low rolling bearings, only to meet the shaft relative rotation of the occasion, and the ball retainer, the above two conditions are met, it has been widely used die roll mold, high-precision machine tools, machine tool accessories and high accuracy is required axial or axial-radial motion simultaneously occasion.