Preloading method
Position preloading
Constant pressure preloading
Method using matched pair bearing with standout adjusted for preloading (see below).
Method using spacer with dimensions adjusted for preloading.
Method using nut or bolt capable of adjusting preload in axial direction.
In this case, starting friction moment during adjustment should be measured so that proper preload will be applied.
Method using coil spring or diaphragm spring.