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big ball bearing - China Manufacturer
Thank you for inquiry my big ball bearing, Tel: 0379-64331653, E-mail: info@lyvsg.com
http://www.lyvsg.com/key-big-ball-bearing-5/
Measuring the size of the shaft and the bearing hole, they complement each other to determine the accuracy with the requirements: the inner ring and the shaft to take the interference fit, the amount of interference ~~ +4 um (light-load, high-precision 0) ; outer ring and bearing hole should take a gap with the amount of backlash 0 ~ +6 um (the free end of the bearing using one-way bearing, should increase the gap); surface of shaft and housing bore roundness error in the 2um less, bearing end face parallelism spacer in 2um below, the shaft shoulder end face the external end of the beating in the 2um; the bearing hole stop shoulder axis beating 4um following; spindle inside the front cover side facing the axis fluctuations should also below 4um .
Front bearing shaft mounting position: fixed end bearing with clean kerosene cleaning, and to measure the end. For grease lubrication, the first containing 3% to 5% of the organic solvent of the grease into the the unidirectional bearing for degreasing after fill, and then the oil gun quantitative grease within the bearing (representing about 10% of the bearing space ~ 15%); heating bearings to 20 ~ 30 ℃, oil press bearing onto the shaft; tight sets withstood pressure on the sha ft and the right pressure end bearings axially positioned; the spring scale tape volumes in pre-load bearing outer ring, under the method of measuring the starting torque check whether there are significant changes (even if the bearings are correct with improper or cage deformation preload may change).roller bearing
We need bearings - shaft combination into the seat hole: heated seat hole so that heat up to 20 to 30 ℃, the one-way bearing - shaft combination into the seat hole with consecutive playful pressure; adjust the front cover, the front cover fastening capacity of 0.02 ~ 0.05um, to end basis chock, the dial gauge table first conflict in the journal surface on its axis of rotation measurement beating the error in less than 10um; dial gauge positioning in axis, the first table, subject to the back seat of the inner surface of the bore, the axis of rotation to measure the bearing bore concentricity of the front and rear seats.
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