Separated from the bearing often due to lack of maintenance and the lack of oil, or by the natural wear and tear of the gear pump bearing loose, and even damaged. Separated from the bearing should be rolling sensitive, view the method is: the bearing press the bearing sleeve rolling, if the block, the bearing seat or ball wear, should be replaced. If the rolling sensitive, but slightly sand sliding oil-free bush SF-1 sand sound, compared to the lack of oil scene.

① clean the bearing clean, fixed bearing inner edge, rolling the outer edge, while in the axial pressure, should be rolling steel sleeve moving sensitive. If there is a block or a significant gap (axial clearance greater than 0.60mm, radial clearance greater than 0.30mm), on the permanent pre-smooth bearing, should be replaced.

② For non-permanent pre-smooth bearings, if the above view, the gap is greater than the standard, the use of screw screwdriver from the bearing back cover to see the raceway wear conditions, roller mottled or wear more than 0.30mm, or ball ablation, Bearing cover abrasion, you should replace the new pieces; if normal, it should be added after the grease, riveting good bearing back cover, and then flanging complex.

③ When the bearing noise can not be eliminated, it is necessary to replace.

④ on the permanent smooth bearing, do not need to open the protection, cleaning agent can not be used, if dirty, can be wiped with a dry cloth. If it is not necessary, do not disassemble this bearing at will.

⑤ After the bearing fails, it should be replaced.

⑥ according to the bearing structure characteristics, smooth.