Before you install, should be ready all the necessary parts, tools, equipment, and related data, and so on. Also have to study carefully their drawings or for instructions, in order to determine the correct installation order different parts.
Carefully inspect the TIMKEN bearings, shafts, seals and other components of the bearing arrangement in order to ensure that the mating surfaces clean and good, also should check the screw hole, special catheters or grooves to prevent processing of residues. TIMKEN bearing, as cast, you should ensure that no core sand to stay on without machined surface, and place all the burrs.
Check TIMKEN bearings in the dimension tolerance and shape tolerances of all components, related parts must reach the desired precision and meet the required tolerances, TIMKEN bearings can achieve the desired performance. Diameter of cylindrical shaft neck and holes, generally use micrometers, or internal micrometers with two cross section measurements and four different locations. Axle taper ring gauges, special taper gauges or sine bars for carrying out measurements.
About the inspection and measurement of results, proposed to keep as a record, for future reference. At the time of measurement, components and measuring instruments should be maintained at roughly the same temperature, to ensure measurement accuracy. This means that parts and measuring equipment may need to be placed in the same place a considerable amount of time to reach the same temperature. This approach particularly important for large TIMKEN bearings and associated components.
TIMKEN bearings should be retained in the original package until immediately before the installation, to prevent the entry of contaminants such as dust. In normal circumstances, no need to remove factory paint on the bearing of antirust, simply wipe the outer circle and inner bearing hole can. But if TIMKEN bearing to lubricating grease and apply at very high or very low temperatures, or all of the grease and rust inhibitor is not compatible, you need to install the TIMKEN bearing before cleaning and dry carefully in order to avoid undermining the role of grease.
If the TIMKEN bearings may be due to improper handling of pollutants into, it is necessary to install the bearing before cleaning and drying.
TIMKEN bearings are removed from the original package, if the rust on the surface relatively thick or high viscosity, you also need to wash and dry TIMKEN bearings. Part of the larger 420mm oversize bearings may have this situation, in this case solvent or paraffin oil can be used to clear preservative on the TIMKEN bearings.
Product Model | Inside Diameter | Outside Diameter | Thickness |
NU2316ET bearing | 80 | 80 | 58 |
NU304ET NSK | 20 | 20 | 15 |