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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 with the shaft. The outer ring is usually a transition fit with the bearing housing or the mechanical housing bore and functions as a support. 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 affect 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