Sliding bearing clearance test and adjustment

The role of the bearing clearance: shaft neck and the fitting clearance of bearing bush has two kinds: one is the radial clearance, the other is a axial clearance. Bearing clearance is: top clearance can be based on experience, certainly must also by calculation. Bearing clearance measurement: check the bearing radial clearance, normal pressure lead measurement method and the feeler measurement method. 1) Pressure lead measurement method of lead of the lead wire diameter at the beginning of measurement method of measurement is a gap of 1 rule. Five times the length of 30 ~ 100 mm. Lead wire is soft, the operating procedure is: a bearing cover opened the first, will be a short lead wire coated with a little fat, smooth on the upper bearing and on both sides of the upper and lower tile separation, as shown. B and then cover the bearing cap and screw down the bolt, for a little while longer loosen bolts and remove the bearing cover; C use vernier calipers measure the thickness of each section lead, according to the formula of the tip clearance of bearing delta value. 2) Feeler gauge measurement method of feeler measurement method is used in the tip clearance, the lateral clearance and axial clearance measurement. Measurement should be independent when the length of the die gap and should not be less than two-thirds of bearing length. Bearing clearance adjustment: measured by method of the clearance value if less than the rules of value, should be in upper and lower tile separation between gasket to adjust; Such as greater than rules, should be minus the gasket or scraping surface to adjust bearing separation.