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Bearings should be installed according to the bearing structure, size and bearing components combined with nature may be, pressure should be directly added to the tight fit on the ferrule end face shall not pass through the rolling pressure, Timken bearings installation use the following method:
Comprehensive in General with the axis of the bearing for transition fit, washer and the bearing bores in General as a clearance fit, so the bearings are relatively easy to install, in the axis of the double direction bearings should be fixed on the axis to prevent relative to the axis. Bearing installation methods, generally is a rotating case, and therefore co-ordination between inner ring and shaft to win tie, co-ordination between the bearing outer ring and bearing housing is clearance fit.
Bearing within ring and axis makes tight tie, outer ring and bearing block hole is more pine tie Shi, available pressure machine will bearing first pressure mounted in axis Shang, then will axis together with bearing together mounted into bearing block hole within, pressure mounted Shi in bearing within ring end surface Shang, pad a soft metal do of Assembly casing (copper or soft steel), Assembly casing of bore should than axis neck diameter slightly big, od diameter should than bearing within ring retaining edge slightly small, so as not to pressure in keep frame Shang.
1, low noise bearing installation and adjustment can also emulate the longevity of life of INA bearings grouping methods, makes the interference size is combined with more consistent, the bearing clearance is also more consistent and want to meet the interference wherever possible take smaller value to ensure small deformation of bearing Raceway, to rolling noise caused by smaller.
2, relationship between clearance on the noise of big, ideal State is when the maximum temperature of the bearing is in operation when the clearance values to zero. Judging method of clearance is too large: static axial displacement of the bearing, its larger reciprocating, make a large, low-noise when in operation.
3, if you hate loud shrill cries issued when running, then the bearing preload is too large, bearing a large pre-interference should be slightly relaxed level of pretension. If the clearance is too large, you can make two relatively along the axial bearing rings only slightly: reduces both clearance and increases axial rigidity, reduces the bearing noise.
4, rolling into the loading zones will skid or Hunt around, this can also cause increased noise and wear, while small clearance and axial stiffness can eliminate this phenomenon. But clearance cannot be too small, so as not to cause overheating and shortened life expectancy.
5, sometimes due to host a large range of working temperature, size of the shaft and housing bore or discrete large, cannot be more appropriate clearance set at a time, in this case, the outer ring of the bearing can be used elastic preload method.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| LM1817 NSK | 15 | 25 | 17.2 |
| LM1815 NSK | 15 | 25 | 15.2 |