Composite bearings cylindrical hollow bearings installed:
When the bearing ring and shaft or bearing hole are tight fit, apply a
special mounting sleeve while the bearing pressure to the shaft or
bearing seat.
Since
the inner ring and the outer ring can be easily mounted separately on
the shaft or the bearing seat, it should be noted that when the shaft
with the inner ring already installed is inserted into the bearing
housing with the outer ring already installed , Try to keep it concentric to prevent scratching the rolling body and raceway.
When
the bearing inner ring and the shaft tight fit, the outer ring bearing
hole is loose fit with the non-separate bearing installation, the
bearing can be installed on the shaft with a press, and then the shaft
together with the bearing into the bearing seat hole If the bearing is small, you can also use a soft metal hammer light hit sets
When
the bearing size is larger, due to the larger mounting force required,
or bearing with heavy duty work with a larger interference and therefore
the use of cold installation difficulties, you need to pre-heat bearing
inner ring or bearing before Install. In hot installation, should be strictly controlled heating temperature. Heating bearings, the maximum heating temperature shall not exceed 1200C, generally should be 80 ~ 1000C. Bearing dust cover or ring can not be heated, otherwise it will cause the loss of lubricant. Heating method can be used for induction of beauty, oil bath heating and other methods.
Bearing outer ring and bearing seat hole for tight fit, the inner ring
and the shaft is loose fit, the bearing can be installed on the shaft.
The end face of the ring forces the bearing to but the striking force must be evenly distributed over the bearing ring.
1. Rotate
its outer ring and carefully flush the cage, the rolling body and the
raceway junction, requiring any hidden parts of the original residual
traces of oil thoroughly washed away. After
cleaning the bearings should be attached to the cleaning oil drain,
placed on a clean neutral liner lined table to dry, or in the far
infrared oven slowly drying. Self-cleaning
oil and even after drying to dry or drying, the entire process may not
rotate the bearing rings, adhere to the frame or any rolling element. Rolling
bearings are to be removed from their oil seal packaging just prior to
delivery of routine inspections and immersed in 3% oil-containing
washing gasoline or non-kerosene. 2. Lubricating oil should be dripped as required and delivered immediately to the bearings that have been dried or dried. At
this point, the outer surface of the bearing has no oil film
protection. The entire inspection process should not directly touch the
human skin. Operators should wear clean gloves or apply rust inhibitor
on their hands. However, Appearance, otherwise it will make the measurement deviation.
3. Should
be immediately delivered or used for anti-rust inventory handling, the
entire inspection process should be completed promptly, the bearings
after the inspection is completed. Lest too long lead to rust. Note that the use of pure gasoline without oil cleaning can also cause corrosion.
4. The
bearings that have been dried or dried should be dripped and lubricated
as required and immediately delivered for inspection. In this case,
there should be no oil film protection on the outer surface of the
bearing. During the whole inspection process, no direct contact with the
human skin should be allowed. Operators should wear clean gloves, Or hands coated with anti-rust agent, but the hands of the rust
inhibitor must be mixed into the bearing rolling surface, otherwise it
will make the measurement deviation.
5.
Bearings in the inspection is completed, should be immediately
delivered or used for anti-rust inventory processing, the entire
inspection process should be completed promptly, so as to avoid
prolonged cause of corrosion. Note that the use of pure gasoline without oil cleaning can also cause corrosion.
6. Bearings should be placed on a piece of metal plate within the
inspection area together with the measuring block, standard parts and
measuring instruments used for inspection before they are inspected, so
that the temperature of these articles can be homogenized quickly and
become room temperature.
Obviously,
only by strictly doing the above preparations can the inspection result
be accurate and the bearing will not be corroded throughout the
inspection process.
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