Clearance of the bearings and shaft must be suitable to make bearings long life, including detection of radial clearance of bearings can be used the following methods:
Detection of when, first open bearing cover, selection appropriate diameter of wire, will its stopped into 15~40 mm long of small paragraph, placed in axis neck Shang and the upper and lower bearing points interface Department, cover Shang bearing cover, by provides torque screwed tight fixed bolt, then again screwed pine bolt, remove bearing cover, with micrometer detection pressure flat of wire thickness, seeking out bearing top clearance of average.
If the gap is too small, capable of integrating in the upper and lower Watts put mats on the surface. If it is too large, scraping down the pad, the Institute or pouring again w.
Bearing force adjustment: in order to prevent Bush from work processes that may occur in rotational and axial movement, in order to tie outside interference and moving parts, bearing the required bearing cover to squeeze, measuring methods and measuring method of top clearance, soft wire thickness, measured, calculated bearing strength.
General bearing 0.02~0.04 mm clamping force. If the clamping force is not compliant, you can increase or decrease the bearing and the bearing seat gasket thickness by the land Department to adjust, back not to add cushions.
Other than bearing radial clearance in addition to guarantees, should also ensure that the axial clearance. Axial clearance is detected, the axis moves to an extreme position, and then using a feeler gauge or dial gauge measurement axis from one extreme position to another extreme play on the location of the axial clearance. When the bearing clearance does not meet the requirements, should be adjusted. Radial clearance of bearings often use shims to adjust outside.
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