SF-1
self-lubricating bearing without oil bearing series, SF-2 boundary
lubricating bearing, JF-800 bimetal bearing, FB090 bronze bearing, JDB /
JFB solid inlay bearing, copper base, steel base, Gasket
and self-lubricating plates, sliders, etc .; linear bearings, optical
axis, deep groove ball bearings 0, FU powder metallurgy oil bearing;
bearing automatic sliding bushings SF-1 production machinery and
equipment and other large series. Widely used in printers, automobiles, metallurgy, mining,
shipbuilding, textile, lifting equipment, printing, construction
machinery, injection molding and other machinery manufacturing.
In
fact, the most basic structure of the rolling bearing is composed of
the inner ring, outer ring, rolling element and gear pump bearing cage. In
the case of a radial bearing, the inner ring usually mates with the
shaft and operates together with the shaft. The outer ring, usually in
transitional engagement with the bearing housing or the mechanical
housing bore, functions as a bearing. However, in some steel sleeve bearing occasions, there are outer ring
operation, the inner ring fixed from the supporting role or the inner
ring, the outer ring are running at the same time.
For
thrust bearings, with the axis of the tight fit with the movement of
the known axis of the ring, with the bearing housing or mechanical shell
hole with a transition fit and support the role of the ring. Rolling
elements (balls, rollers or needles) are usually rolled evenly in the
bearing by means of cages arranged between the two rings. Their shape,
size and number directly influence the bearing capacity and
serviceability. In addition to the cage can be separated from the rolling body evenly,
it can also play a role in guiding the rolling element to rotate and
improve the internal lubrication performance of the bearing.
Bearing processing series of topics on roller processing
I believe that the processing of the bearing roller ring and steel
ball processing complex, the following small series for everyone to
analyze, if any different opinions, welcome to point out.
Roller
processing varies according to the raw materials, of which the pre-heat
treatment process can be divided into the following two, the entire
process is: bar or cold wire rod processing after the string and soft
grinding ---- ---- heat treatment ----
Series soft point ---- Roughing outer diameter ---- Rough grinding end
---- End grinding end ---- Fine grinding outer diameter ---- End
grinding outer diameter ---- End Seized ---- rust group, packaging ---- storage (to be integrated assembly>.
Bearing processing series of topics on the ring of the processing process
Bearing rings processing methods should be a variety of, the following
I think a more standardized, to share, I hope everyone will be helpful.
Bearing
inner ring and outer ring according to the processing of raw materials
or blank in the form of different and different, the whole process as
follows: bar or tube material (some bar by forging and annealing,
normalizing) ---- Machining ---- Heat Treatment ---- Grinding ---- Lapping or polishing ---- Final
Inspection ---- Antirust ---- Storage ---- (to be assembled and
assembled>
According to the use of parts and conditions of use and environmental
conditions to choose the size, precision, with appropriate bearing is to
ensure the bearing life and reliability of the premise.
1,
the use of parts: tapered roller bearings for radial load to bear the
radial and axial joint load, usually two sets of bearings used in pairs,
mainly in front and rear wheels of the car, driving bevel gear,
differential Gear reducer and other transmission parts.
2,
Allowable speed: In the installation of correct, well-lubricated
environment, allowing the bearing speed limit of 0.3-0.5 times. Under normal circumstances, to 0.2 times the speed limit for the most appropriate.
3, to allow tilt angle: Tapered roller bearings generally do not allow
shaft relative housing hole tilt, if tilt, the maximum does not exceed 2
'.
4, the allowable temperature: In the normal load, and the lubricant
has high temperature performance, and lubrication conditions, the
general bearing allows -30 ℃ -150 ℃ ambient temperature work.
Popularize the basic knowledge of the dimensional accuracy
The bearing size accuracy basically has the following four aspects:
1, diameter, diameter, width and width of the assembly tolerances
2, roller group within the complex circle diameter and the diameter of the complex deviation
3, chamfer size allowable limit value
4, the width of the allowable changes
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