The best effective clearance of rolling bearings
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Theory and experiment proved that the best effective clearance value is numerical small negative clearance, at this time, the service life of the bearing can have the largest, is greater than or less than the best value, will reduce the bearing life.
But reduce the size of the life is different in two directions: along the direction of negative clearance decrease sharply, cause temperature rise and make the inner ring and rolling body expansion, further increasing the clearance of the negative, prone to sharply reduce the phenomenon of life, life along the direction of increasing clearance of lower relatively more smooth, so the general clearance value to zero clearance for the lower limit, and maximum along the direction is clearance to choose.
Only in precision or important parts, load and temperature rise is not big and stable, but after precise calculation and guarantee clearance is adjustable on the best effective clearance value (small clearance), can obtain maximum service life.
Using the method of constant pressure preload is easier to achieve the best effective negative clearance
234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984
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Rated load of rolling bearings and bearing clearance function, bearing the rated load values given in the product samples, is the value of effective clearance is zero.Theory and experiment proved that the best effective clearance value is numerical small negative clearance, at this time, the service life of the bearing can have the largest, is greater than or less than the best value, will reduce the bearing life.
But reduce the size of the life is different in two directions: along the direction of negative clearance decrease sharply, cause temperature rise and make the inner ring and rolling body expansion, further increasing the clearance of the negative, prone to sharply reduce the phenomenon of life, life along the direction of increasing clearance of lower relatively more smooth, so the general clearance value to zero clearance for the lower limit, and maximum along the direction is clearance to choose.
Only in precision or important parts, load and temperature rise is not big and stable, but after precise calculation and guarantee clearance is adjustable on the best effective clearance value (small clearance), can obtain maximum service life.
Using the method of constant pressure preload is easier to achieve the best effective negative clearance
