Choose INA flange bearing radial location factors should be considered
by:Waxing2020-10-26
When choosing INA bearings, according to the area of use and conditions of use and environmental conditions choose size, precision, with appropriate bearing is the prerequisite of flange bearing life and reliability.
To fully achieve the INA bearing capacity, bearing inner and outer ring (
Or the axis of the thrust bearing ring back seat ring)
The entire circumference of a circle, must be fully supported by solid and uniform, bearing surface can be cylindrical or conical surface, for INA bearing axial ring and seat, a smooth surface is applied.
To match the bearing ring surface processing, therefore, must meet the precision, and should not be any groove, hole or other shape of discontinuity.
In addition, flange bearing circle must be securely fixed, in order to prevent the under the effect of load, the bearing ring rotation between the mating surface.
1, parts of use: apply to carry to mainly consisting of radial load and axial union load, usually in two sets of bearing pair is used, should be mainly in car wheel hub, before and after active transmission parts, such as bevel gear, differential, reducer.
2, allows speed: under the correct installation, lubrication good environment, allowing for INA bearing limit speed of 0.
3 -
0.
5 times.
Generally under normal circumstances, with 0.
2 times the limit speed for the most appropriate.
3, allows tilt Angle: flange bearing generally are not allowed to have tilted axis relative to the shell hole, if there are any tilt, no more than 2 '.
4, allow temperature: under normal load, and lubricant has a high temperature resistant performance, and abundant lubrication conditions, general bearing in - are allowed
30℃-
Work under the temperature 150 ℃.
INA bearings removed after plans to continue to use, should choose the proper removal tool.
Remove the interference fit ring, can only add tension on the ring, will never allow through transfer roller disassembly force, rolling element and raceway will be crushed.
In general, there must be suitable for the amount of interference, bearing ring can be fixed in the radial direction and enough support.
If there is no right or full bearing ring is fixed, it is easy to cause damaged flange bearings and related components.
But sometimes in order to facilitate installation and removal, or INA bearings for use on the floating end need to have the function that axial movement, cannot use interference fit.
In some adopt under the condition of clearance fit, need to take some special measures to reduce the wear and tear caused by creep, such as: fitting surface hardening on the surface of bearing and gear shoulder, through the special lubricating oil for lubrication fitting surface and exclusion of wear particles, or use bearing lateral positioning key way to fix the bearing.