Select auto water pump shaft even when the original bearing radial clearance which should be paid attention to the details

Choose even auto water pump shaft bearing radial clearance original details which should be paid attention to when using rolling bearing internal clearance in great impact on the performance of bearing, including fatigue life, vibration, noise, temperature, etc. In theory, when there is a slight negative clearance, bearing service life may be prolonged. However, to obtain the ideal situation is so difficult, and too much of a negative clearance will greatly shorten the bearing life. Often, therefore, should use zero clearance or slight clearance is not negative clearance. So when choosing the pump shaft bearing radial clearance, the original should be paid attention to the following: 1, to consider because of the outer ring and the bearing holes are caused by clearance volume decreases, and 2, want to consider about parts caused by temperature rise caused by the expansion of the reduction of the amount of clearance. 3, the pump shell has two kinds of aluminum and iron shell. Even bearing shaft and shell with the interference fit, 4, due to the water pump shaft bearing axis and shell of the temperature difference is bigger, the minimum clearance requirements can estimate work out. But in most cases is achieved by test results and experience. 5, RTL water pump shaft bearing in the absence of special requirements, complete sets of pump shaft radial clearance of the bearing is 15 35μm（ No load clearance value) 。 Japan NSK company water pump shaft bearing radial clearance range of 10 - 40μm 。 Germany FAG company water pump shaft bearing radial clearance range of 10 - 36μm 。 Jiaxing bearing co. , LTD. Is a ( ） A specialized production automobile water pump bearings, shaft bearings, water pump bearings professional manufacturers, the company strictly in accordance with the quality of customer requirements and time to provide error-free, with cost-effective products and services, welcome to inquire. A: water pump bearings under the incorrect assembly can cause what consequence: water pump repair method of rolling bearing abnormal tips related tags: auto water pump bearing, shaft bearings, water pump bearings, auto water pump bearing related news which cases will fever auto water pump bearing thermal and bearing performance of engine cooling system of key parts of automotive water pump bearing water pump bearing why use general auto water pump bearing grease appears channeling dynamic circumstance how to deal with related products