How to properly install TIMKEN bearings

Bearing radial internal clearance as the bearing journal on the cone move forward and narrowed. By measuring the decrease a value, you can determine the degree of interference and the tightness of fit . For tapered bore bearings, inner mounting always interference fit . With cylindrical bore bearings are different, tapered bore bearings of the degree is not selected by the shaft with tolerances of the decision, but by the conical journal bearings , sleeve or withdrawal sleeve advance distance decision.
Install self-aligning ball bearings , CARB toroidal roller bearings, spherical roller timken clutch bearing and precision with a tapered bore cylindrical roller bearings , to determine the value of reduced radial internal clearance or the axial conical base advance distance , as measured by the amount of interference scale . Clearance and axial advance distance reduction value guideline value has the following parts:
1 , small bearings
Small Bearing test machine can use nuts to advance it to the conical base . In the case of using the sleeve , then the sleeve nuts . Small withdrawal sleeve nut into the bearing hole available . Available hook wrench or pneumatic wrench to tighten the nut . Before starting the installation , you should at the surface of the journal and the sleeve slightly a little oil .
2 medium-sized bearings
Large timken bearing mounting force required to increase significantly , and should use hydraulic nut and / or using the oiling method :
( 1) When using a hydraulic nut mounting the bearings, it must be positioned on the threaded portion of the journal or a threaded sleeve , so that the annular piston against the bearing inner ring , the shaft nut or ring mounted on the shaft end . Through the oil pump oil into the hydraulic nut to secure , install the required precision of the force, the piston moves in the axial direction . Using hydraulic nuts, spherical roller bearings installed