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1, low noise TIMKEN bearing installation and adjustment can also be following the grouping method of long-life bearings, together with full size consistent, the bearing clearance is also more consistent and want to meet the interference if possible, take a smaller value to ensure the TIMKEN bearing raceways and small deformation, scrolling through the noise caused by smaller.
2, the relationship between clearance on the noise is large, ideal State is when a TIMKEN bearing is in operation when the State of maximum temperature, clearance values are just zero. There are ways to determine the clearance is too large: rest the TIMKEN bearings, axial displacement, reciprocating range is large, make a large and low noise when in operation.
3, if the operation issued shrill shouts of hate calls, then the TIMKEN 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 bearing rings along the axial deviation: reduces both clearance and increasing axial rigidity, reduces the bearing noise.
4, rolling into the loading zones will slip around or make a rocky ledge, this may increase the noise can also cause wear, small clearance and can eliminate this phenomenon axial stiffness. But clearance cannot be too small, so as not to cause excessive temperatures and reduced life expectancy.
5, due to host a large range of working temperature, or dimensions of the shaft and housing bore very discrete, not having a set would be a more proper clearance, in which case, TIMKEN bearing outer ring using elastic preload method.
Making precision parts for rolling bearings, which are required when you use appropriately cautious, using high-performance bearings, if used incorrectly, could not reach the expected performance results, so using the bearing should be aware of the following considerations:
Keep the TIMKEN bearing and its surroundings clean. Even invisible to the naked eye smile dust into the bearings, also increase the bearing wear, vibration and noise.
Used to carefully when installing, do not allow powerful punch, do not allow direct percussion with a hammer bearing, passes through the rolling pressure is not allowed.
Using the appropriate, accurate version of the Setup utility, using special tools as much as possible, avoid using fabric and staple fiber or something.
Prevent the corrosion of TIMKEN bearings, the direct use of hands when taking bearings to fully wash away sweat on hands, and coated with high quality mineral oil before operation, paying particular attention to rust in the rainy season and summer.
Selection of fit
For dimension of inner diameter and outer diameter of the bearing size is made in standard tolerances, TIMKEN bearing inner ring and shaft, with holes in the outer ring with tension only through the control shaft tolerances bore tolerances to achieve. Meet the base of the bearing inner ring and shaft hole, TIMKEN bearing outer ring and housing bore fit shaft.
Proper selection of tie, you must know the TIMKEN bearing the actual loading conditions, temperature, and other requirements, which is very difficult in practice. Therefore, in most cases is selected based on refinements of tie.
Load size
Amount of WINS between ring and shaft or housing depends on the size of load, a heavy load of larger amount of WINS, lighter loads in a smaller amount of WINS.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7224BDF NSK | 120 | 215 | 40 |
| 7224ADF NSK | 120 | 215 | 40 |