Bearing axial locating method

A, lock nut positioning method using interference fit of bearing inner ring device, usually on inner ring on a shaft shoulder, on the other side is generally use a lock nut ( KMT or KMTA series) Fixed with a taper hole bearing equipment directly on the cone axis neck, usually with a lock nut on the shaft. Spacer positioning method between the bearing ring or the selection of bearing ring with nearby parts between casing or baffle, instead of all the shoulder or bearing shoulder is very convenient, Figure 10. ) 。 In these cases, the size and shape can also be applied to public service related parts. Second, the ladder shaft sleeve positioning another bearing axial positioning method is to use ladder shaft sleeve. The collar is especially suitable for precision bearing equipment, compared with threaded lock nut, beating its smaller, provide higher accuracy. Ladder shaft sleeve is generally used in ultra high speed spindle, about the spindle, the traditional locking devices are unable to offer the satisfied precision. Three, fixed end cover positioning method using interference fit of the bearing outer ring device, usually make on one side of the outer ring by the shoulder, on the bearing with a fixed end cover is fixed on the other side. Fixed end cover and the fixed screw in some cases negative impact on the bearing shape and performance. If the wall thickness between the bearing and the screw hole is too small, or screw fastening too tight, outer ring raceway may be out of shape. The lightest ISO size 19 series more than 10 or more series easily affected by such damage. Choose a lot of small diameter of screw is beneficial. Should avoid using only three or four screws, because the fastening points less, may constitute a bulge in the bearing hole. This will happen variable friction torque, noise, and unstable preload ( When using the Angle touch ball bearing) 。 About the design complexity, space is limited, only can choose thin wall bearing and limited number of screw spindle. In these such as advocated by FEM ( The finite element method) Analysis of deformation accurately. Why the previous: bearing steel after high temperature tempering can improve high temperature resistant function next article: bearing rolling sound check and maintenance method