2, deep groove ball bearing type Post code C2 is smaller than normal internal radial clearance clearance C3 internal clearance greater than normal radial clearance C4 greater than C3 radial internal clearance C4 C5 is greater than the internal radial clearance DB layout back to back matches in the installation of two single deep groove ball bearings. DF matching layout in the face to install two separate deep groove ball bearings.

1: fag bearing installation:1, cleaning bearings and related partsHas been greased on both sides with bearings and oil seals or dust cover, seal bearings before installation without washing.2, InstallationBearing installation should be based on bearing structure, size and bearing components with the nature of the pressure should be directly added to the tight end with the ring surface was not passed through the rolling pressure,
 

1: Thrust ball bearings features:1, one-way thrust ball bearings can only support axial load in one direction from the axis of its ring structure, with a full set of ball seat and maintain the frame. Which axis ring installed in the shaft seat ring bore hole bigger than the shaft, seat hole can not be grinding.2, two-way thrust ball bearings can withstand import axial load in both directions on both sides it has a ring with the axial channel and the two seat,
 

1: bearing steel ball production process:1, grinding: the ball into the rough match with the rough size, upper and lower multi-channel measurements with the same concentric ring section slot grinding mill for the triangle, add oil, crude abrasives; on the disc rotation, the next disc Fixed. Ball machine, said more than rough mill. Necessary, coarse grinding can have Road.2, system of embryos: use of a variety of processes to produce a variety of spherical rough way.
 

1: How to improve the bearing accuracy:1, the precision spindle bearings and can not meet the requirements, after the bold and the fabrication journal roller to replace the inner ring and ball were measured waxy close to a size for every three groups ball close to 120 ° intervals to take separately, due to a decrease of the surface of a re-processing, but also reduces the surface with a weight, while improving the axial stiffness of a bearing system,

On the geometric accuracy, precision motion and positioning precision are high precision guide (such as CNC machine tools and measuring machines guide), the design should follow the following principles:Error compensation principle, meet the following three requirements in order to guide the system to achieve mutual error compensation:(1) rail link between the flexibility must be set to the middle,

1: bearing grease methods:Note fat content on the sealing performance of a large number of tests that, when the amount of grease within the bearing cavity volume is about 30% or less, due to the internal bearing no saturated fat, so very little grease leakage. Note more than 30% fat, bearing the internal local produce saturation, when the grease reaches 50%, the bearing grease to reach full saturation, excess fat is "squeezed" out. Special attention,

1, long life and resistance to wear - full ceramic bearing steel bearing fatigue life longer than expected 10-50 times, hybrid ceramic bearing, steel bearing life than the life span of 3-5 times higher;2, high speed and acceleration - can dn value of more than 3 million under the conditions of operation, and skidding, wear and heat can be reduced;3, corrosion-resistant - inert materials as ceramic materials, it is more corrosion and abrasion;