First of all, the bearing precision bearing assembly hole size, shape, bad cases, the bearing will be affected, not play the best performance. For example, if the mating part accuracy and shape accuracy of bearing inner hole size is bad to can cause deformation of the bearing outer ring, leads to the deterioration of the bearing inner hole roundness; If retaining shoulder precision is not good, can produce bearing outer ring, roller tilt, intensifying concentrated load, the bearing fatigue life down, more serious can lead to a retainer breakage, sintering; If the bearing inner ring of the precision of the spindle blade bearing retainer is bad, such as size, roundness, cylindricity, waviness and roughness, etc. The accuracy of the position degrees will obviously result in a complete set of spindle vibration value increase.

Second, the complete bearing carefully before assembling precision matching, so users before use, the scattered without measurement selection, bearing parts can't be used interchangeably.

Third, about the spindle bearing and spindle foot cleaning problem. Due to the spindle foot structure is compact, bolsters cavity, there are many other parts of their cleanliness may also affect work bearing cleanliness within the cavity. Therefore, pre-cleaning USES the spindle foot parts before assembly, assembly after assembly, then for assembly including spindle foot bearing precision cleaning process is more reasonable technological process.

Fourth, the bearing should not be impacted by knock against and, when it is assembled knock against and the impact of the collision between the bearing parts, bearing failure.

Fifth, the bearing edge when should pay attention to control the edge of the Angle and intensity factors, avoid the edge is not reasonable cause deformation and failure of bearing parts.

Sixth, to more than rust bearing for a longer time period or stored, rust or may arise because of anti-rust oil to dry up and die roller sticky situations.