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BEARINGS INSTALLATION
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Bushes
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d55mm
1. Pressing-in arbor
2. Bushes
3. Housing
4. Shoulder diameter
ܡ
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In most cases, CSB slide
bearing are used with a pressfit in the same manner as general
sleeve bearings. Fit the bearings into housings using mandrels
or press. In case of a relatively large interference, provide
both the I.D. Of the housing and the O.D. Of bearing with chamfers,
and fit the bearing into the housing with mandrel for easy installation.
When using plastic bearing in an environment where temperature
fluctuates, install the bearing using set screws, keys or flange
pins for better results.
For some special application like CSB650# bushes for injection
molding machines, can be used shrink fitting. This is the preferred
method of inserting a bush in its housing and provides the optimum
interference fit without risking bearing damage during press
fitting. Forzen carbon dioxide(co2) should be packed around
the bearing for up to 2 hours, depending on the cross section
of bush to be cooled. Once removed from the co2, the bush should
be offered to its housing without delay. It should fit without
force, gravity will usually be adequate for a vertical installation. |
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d55mm
1. Pressing-in arbor
2. Bushes
3. Housing
4. Shoulder diameter
5. Auxiliary ring
6. O ring
| d2mm |
dHmm |
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50<d2ݡ100
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| 100<d2ܡ200 |
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| 200<d2ܡ305 |
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At the on-start of operation, contact surfaces
of shaft and bearings are smooth, however, microscopic irregularities
are inevitable to develop after continued use. A deviation
from true center alignment may also exist. Thus, the initial
contact between sliding surface could be local. Do not immediately
start a regular loaded operation, it may result in damaging
the gearing surface, leading to a shorter service life. Instead,
gradually break-in operations so to smooth out the microscopic
irregularities, and allow the entire pressure support area
to slowly come in contact without causing damage.
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Storage
CSB slide bearings are supplied packed in boxes or in a
bag in a box. The bearings should be stored in clean, rust proof
manner. The thin wall bearings like EP should be protected from
deformation during storage. Do not store in locations exposed
to high temperatures, high humidity, or the direct rays of the
sun, and do not place under a heavy load also.
Initial operation |
Thrust washers and
plate
We recommended to provide housing with hollowed dents for
installing thrust washers and sliding plates. Dowel pins should
be applied to prevent turning. |
1. Dowel pin application(thrust
washer)
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2. Inlaid installation(plate)
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3. Flat head screw
application
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Alternative fixing
methods
Laser welding, adhesive fixing or soft soldering have also
been used for economical alternative fixing if the interference
fit on the bush is not sufficient or it is uneconomical to use
dowel pins or screws for trust washer and plate. When using
laser welding or other higher temperature manners should be
considering not exceed the max. slide layer temp. Can be bear.
The sliding layer must always be kept free from adhesives. |
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