In order to improve SUNTHAI and F & F actual bearing with precision installation, you must use no bearing deformation measurement methods and tools, the bearing bore and cylindrical mating surface dimensions actual precision measurement can be related to inner and outer diameter measurements all be measured, and the measured data to make a comprehensive analysis on this data, the precision worthy of the shaft and housing bore SUNTHAI and F & F bearing mounting portion size. In actual measurements made with the corresponding shaft and housing bore and geometry, it should be done with the measuring bearing the same temperature conditions.

In order to ensure a higher actual match results, and the seat surface of the shaft and the bearing hole match, the roughness should be as small as possible.

In making these measurements, you should be in the outer and inner hole SUNTHAI and F & F bearings, as well as on the corresponding surface of the shaft and housing bore chamfer at both sides near the assembly were able to make the maximum deviation of the direction showing the two groups mark, so that when the actual assembly, the maximum deviation to match the two parties aligned in the same orientation, so that after assembly, the two sides to partially offset the deviation.

Purpose of making two directional signs, that can compensate for deviations into account, even if supported at both ends of each rotation accuracy has improved, and the seat hole and ends between the two bearing journal concentricity error was partially eliminate. Strengthening measures for the implementation of surface mating surfaces, such as sand blasting, with a diameter slightly larger than the precision plugs plug a hole, etc., are beneficial to improve fitting accuracy.