Scroll alternative principles and methods IKO bearings
Depending on the type of rolling bearings IKO, Swiss precision electromechanical will be divided into the following areas:
First, radial ball bearings
1, the inner and outer ring raceway spalling, severe wear, cracks inside and outside the ring.
2, ball out of round or flaking, cracks.
3, cage badly worn.
4, noise and vibration when turning, braking and reverse reverse phenomenon stop.
5, with the gap IKO bearing clearance exceeds the specified maximum.
Second, tapered roller bearings
1, the inner and outer ring raceway spalling, severe wear, cracks inside and outside the ring.
2, in the longitudinal direction of the roller, the center forward more than 1.5mm, the tapered distal end from the outer edge of the rollers is greater than 2 ~ 3 mm.
3, cage wear, can be folded in the inner roller, cracked, deformed beyond repair.
Third, the radial spherical roller bearings and radial cylindrical roller bearings
1, the inner and outer ring raceways and rollers have broken, pitting and deeper wear scar.
2, cage deformation, can be folded on the inner roller.
3, with the gap between the inner and outer ring raceway and the roller is greater than 0.06mm.
Fourth, thrust ball bearings
1, two raceway washers peel injury and severe wear.
2, ball crushing or pitting.
3, severe deformation of the cage, the ball can not be retracted.
Scroll alternative principles and alternative methods IKO bearings
Alternative principles and alternative methods of rolling bearings IKO follows:
First, the substitution principle IKO bearings rolling
1, the working capacity factor IKO bearings and other technical parameters allow static load equal to the technical parameters wife to try IKO bearings. 2, should choose to allow the speed limit is equal to or higher than actual speed wife IKO bearings.
3, alternative level of accuracy IKO bearings IKO bearings either below the level of accuracy wife.
4, the size should be the same, but not because of the replacement IKO bearings IKO bearings randomly change machines compatible with the size.
5, using the method casement IKO bearings, to ensure concentricity of the inner and outer cylindrical surface of the sleeve inserts, and should be the correct selection of tolerance and cooperation.
Second, the alternative method of rolling bearings IKO
A direct substitute
Alternative IKO bearings inside diameter, outside diameter and thickness dimensions are identical with the wife IKO bearings, without taking any measures to install and use.
2 Padded alternative
ID, OD and wife IKO bearings IKO bearings identical alternative, when only a narrow width, can be padded alternative. Added gasket thickness equal substitute wife wife IKO IKO bearings and bearing width difference. Washer inside diameter clearance fit with the shaft outside diameter of the outer diameter of the bearing inner ring IKO. To parallel end surfaces of the gasket, the gasket should be close to the shoulder of the shaft during installation.
1 to a narrow width and substituting
When no bearing IKO bearings wife with similar dimensions alternative IKO, journal or can be taken to change the way the shell hole so that it is compatible alternative IKO bearings. However, the processing volume journal or aperture is not too large so as not to affect the part strength. IKO bearings using standard models of the machines, try not to use this method.
2, change the size of the shaft or housing bore
For non-standard obsolete IKO bearings, journal or housing can be taken to change the way the hole so that it is compatible alternative IKO bearings. However, the processing volume journal or aperture is not too large so as not to affect the part strength. IKO bearings using standard models of the machines, try not to use this method.
