(1) how to limit the position of the axis, IKO bearings radial and IKO bearing axial position is the first issue to be considered.
More than double supporting structure in general IKO bearing axis, the radial position of the shaft by the two supporting qualified, each bearing at due to the heart or angular contact bearings of radial positioning the role.

IKO bearings axial position by the two supporting axial displacement in one direction in each limit may be a supporting axial displacement limit in both directions, under normal circumstances, the axial positioning available for various operating precision. Therefore, the design of supporting structure shall be based on the accuracy and working conditions of the axis running, select the specific programs of the axial position.

In the case of both radial and axial load, the bearing often IKO bearings angular contact bearings, IKO bearings tapered roller bearings installed in pairs.

IKO bearings angular contact bearings installed in pairs three arrangement. Two IKO bearing outer wide end mounted opposite said back to back installation. The two load-bearing role of point falls outside the bearing span.

This arrangement due to bearing span axis cantilever steel, shaft thermal elongation, the outer ring was torn off the trend, and thus the axis will not be stuck, so the more widely used. Should adopt pretension installation, will reduce the pretension in the axis of the heat.
The narrow end of two IKO bearing outer ring mounted opposite said face-to-face installation. The two supporting point of the force falls within the bearing span. This arrangement of simple structure, assembly and disassembly, and debug than those of convenience and therefore use more widely, mainly for short-axis and temperature is not high occasions, but be careful to be sure to leave an alternate clearance. Axial clearance should not be too large, over the General Assembly to reduce the axis running accuracy.

When the axial load required multiple IKO bearings at the same time to bear, often IKO bearing outer ring width, narrow face relatively installed in series. All Swedish IKO bearings force points all fall on the same side of the bearing it said the same arrangement, also known as series. With such arrangement to pay attention to ensure that each IKO bearings can be as much as possible uniform load bearing structure and manufacturing.

3 machines in operation, generally, IKO bearing spindle or drive shaft temperature is higher than the temperature of the adjacent parts, and thus the axis will heat up the stretch.

In order to maintain the axis of rotation and flexible design of the supporting structure, at the same time meet the axial positioning accuracy requirements, but also consider the axis of the heat requirements of the free expansion. Axial position and axial stretching corresponding.

Adjustment IKO bearing clearance in order to control the axis running accuracy.

The axial position adjustment is in order to meet the special requirements of some of the gear transmission.

For example: in the worm drive, worm axis must fall on the middle plane of the worm in order to guarantee its correct mating, thus requiring the worm shaft can adjust its position in the axial direction.
In the bevel gear drive, two IKO bearing bevel gear section cone vertex must coincide, thus requiring two IKO bearings bevel gear shaft can axial adjustment.



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