IKO roller bearing and shaft with analysis of the testing technology

Rolling bearing and shaft fit clearance must be appropriate, radial clearance test can adopt the following methods. Test 1, the feet of common types: rolling bearing of rolling mill bearing, joint bearings, wheel bearings, insert ball bearing, thrust ball bearings, one-way bearing, full roller bearings, thrust roller bearings, linear motion bearings. For larger diameter IKO bearing, gap is larger, with a narrow feeler direct detection. For small diameter of the bearing, clearance is lesser, inconvenience with feeler, bearing clearance, however, must use the thickness of the appropriate feeler. 2, pressure lead test by pressing lead was detected using feeler, accurately detect rolling bearing clearance but more trouble. Aluminium wire used in the test should be soft, shoulds not be too big or too small in diameter, the diameter of the ideal of clearance of 1. 5 ~ 2 times, the actual work showed soft lead wire for testing. Detection, first open the IKO bearing cover, the diameter of the lead wire, appropriate to cut it into 15 ~ 40 mm long segments, on the shaft neck and upper and lower bearing interface, cover the bearing cover, tighten the retaining bolt torque by the regulation, unscrew the bolt, then remove the bearing cover, micrometer is used to inspect flattening lead wire thickness, the average of IKO bearing tip clearance. If the top gap is too small, can add pad on the surface of the upper and lower tile combination. If too large, the reduction of pad, scraping the inquiry or watering the tile again. Adjustment of bearing force: in order to prevent the bearing shell may occur in the process of job rotation and axial movement, besides the fit interference and stop parts, bearing bush must also use IKO bearing cover to compaction, tip clearance method, measurement method and measure the thickness of the soft lead wire, can be used to calculate the bearing force ( With the elastic deformation of axle bush compressed volume) General bearing pressure force at 0. 02 ~ 0. 4 mm. If the clamp force do not conform to the standard, usable increase or decrease of the bearing and bearing joint surface of the gasket thickness method to adjust, tile back no padded. Rolling bearing except to ensure the radial clearance, should also guarantee the axial clearance. Detection of axial clearance, remove the shaft to an extreme position, and then measured with a feeler dial indicator or shaft position from one extreme to another extreme position of channeling momentum namely axial clearance.