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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Selected bearing clearance - selected reference for radial internal clearance Selected bearing clearance - selected basis for radial internal clearance
In theory, the play in the bearing operation is only negative; the lifespan becomes the longest; but we all know that even a small amount of negative clearance will be agilely lower than this. Usually the initial clearance is greater than 0. Most of the miniature bearings and small-aperture bearings are MC3; usually the bearings are selected C0. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
The original radial clearance of the rolling bearing is: the amount of movement of the inner ring from the one pole position to the other pole direction relative to the outer ring in the radial direction before the device. The working clearance of the bearing is: After the device; the amount of movement of the shaft in the radial direction relative to the bearing outer ring without load; the working clearance is the original radial clearance minus the amount of clearance change ΔS (in μm) due to interference fit and thermal expansion .
Whether the rolling bearing can carry out its normal function is determined by whether it can reach the appropriate working clearance. The working clearance is determined by the influence of the public service and temperature selected by the original clearance in front of the device.
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Selected bearing clearance - selected basis for radial internal clearance
Source: China Bearing Network Time: 2013-04-25