The type of import bearings is more , and domestic bearing type basically is about the same, including the spherical ball bearings.

Insert ball bearing is actually the deep groove ball bearing a form, characteristic is its outer diameter for spherical surface, can match the bearing of the corresponding concave spherical play a role in the heart. Although the basic performance and deep groove ball bearing should be similar, but because this is mostly used in bearing is coarser mechanical, installation is not very precise positioning, axes and a hole on the axis of the neutral difference, or axial length and deflection etc, and bearing itself precision is not quite high, some structure also relatively rough, so common of actual performance compared to the same specifications of deep groove ball bearings to play on a discount.

For example take top of silk ball bearings are used in the sphere of the stiffness sent deflection axis, the bearing with seals at both, can prevent sewage closely into, the factory has a moderate amount of lubricant when loading, before the installation, do not need to clean, do not need to add lubricant, bearing inner circle on the top of the silk from the shaft screw fastening. Allowed axial load may not exceed 20% of the rated dynamic load.

With eccentric set outside of spherical ball bearings and covered the spherical bearing the silk performance basic same, just top silk does not, the circle, but eccentric set in. Insert ball bearing the taper hole with conical taper 1:12 for hole, can be directly mounted in the tapered axis, or with tight set bushing installed in without shaft shoulder axis, and can fine-tune bearing clearance.

 



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