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All components of the bearing are split axially in two places so the bearing and the housing are fitted to the shaft radially.
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ll internal wearing surfaces of the bearing can be inspected using only a socket
head screw key and without disturbing any of the components which may be
mounted along the shaft.
Because of the easy of inspecting these wearing surface, it is possible to obtain
the maximum life from the bearing only replacing it when it has, in fact fatigued
to a point where it can no longer be relied upon.
This ability to inspect the bearing makes it possible for its replacement to be
planned by observing the rate at which the bearing is fatiguing.
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The only tools required are two sizes of socket head screw keys, a hardwork block and hammer or resin hammer.
No expensive or special equipment, such as a hydraulic pumps and hydraulic nuts are needed. Minimum time of assembly and disassembly is achieved.
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Dimensionally interchangeable with SN type housing.
In difficult, inaccessible locations when it is necessary to replace the bearing in an SN housing, this can be achieved by replacing the whole unit with a HKT split roller bearing without the shaft having to be lifted or the other mountings on the shaft being disturbed. This is because the base to center line and bolt centers line and bolt centers are the same for both types.
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The inner race is clamped to the shaft and does not rely upon a tapered adaptor
sleeve to obtain the necessary fit on the shaft.
The correct internal running clearance of the bearing is assured because the risk
of expanding the inner race excessively and so removing the necessary
diametric clearance is eliminated.
Also removed is the risk of the bearing being lift loose on the shaft because no
longer is there a dependence on the tapered sleeve being adjusted correctly into
the bearing but by simple measurement of the shaft the correct fit is assured.
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The expansion or floating of the shaft is accommodated within the bearing and does not rely on the outer race of the bearing sliding within the housing. Excessive axial loading resulting from the resistance of the bearing to move Axially within the housing is eliminated, so removing unnecessary load on the Locating bearing which in turn increases its operating life.
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The self-aligning feature is provided between the OD of the Cartridge and the ID of the Pedestal ensuring uniform, consistent and so minimal clearance between the shaft and the housing.
The sealing of the bearing is more effective which improves the bearing life through reduced ingress of foreign matter to the bearing.
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The bearing and shaft can be lifted away from the pedestal without exposing the bearing.
This sub-assembly can be removed without the bearing being exposed so that it is kept clean while work is being carried out on other parts of this subassembly. By keeping the bearing clean, its life is significantly extended.
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The bearing is made up of six major components.
As each of these six components are fitted separately, the weight of the largest of the largest of these six components is much less than the solid bearing. This makes for easier handling and may completely eliminate the need for lifting tackle which would be necessary in the case of a solid bearing.
- The position of the inner race relative to the outer race of the locating bearing is
always constant.
By fitting HKT bearing to a grooved portion of the shaft, it is possible to Guarantee constant and precise location of the shaft relative to the framework on which the housing is mounted.
