A, six types of high precision bearing hot oil cleaning methods

1. Cleaning method

For soft thin oil or anticorrosive paste hardening of the six types of bearings should be immersed in 100℃-200℃ hot automotive oil. Clamp the bearing with needle-nose pliers and clean the bearing surface with a brush. When the surface is difficult to remove oil stains in the hot oil is heated to 100-200℃ when it will melt down, along the brush is cleaned out. The needle-nose pliers should be rotated so that each face is rinsed clean. When it is difficult to remove bearings with very serious stains, they can be disassembled and dissolved into hot oil, and then assembled again after rinsing roller bearings, inner and outer rings and rigid rings. At the same time, when cleaning bearings, the operating temperature should not exceed 200℃ to avoid oil being lit. At the same time, attention should be paid to spare parts from touching the bottom of the vessel as far as possible, so as to prevent the bearing construction steel from becoming soft and bending when the temperature is too high.

2. Frequently Asked Questions

Sealed angular contact bearings can not be removed in the form of disassembly, and considering the heat resistance of rubber seals, it is generally not recommended to use rolling oil cleaning, and the airtight structure should adhere to the original appearance can not be removed. When cleaning several bearings, use 90 ~ 100℃ hot motor vehicle oil dry solid sealing oil, use seamless splicing socket and burn resistance several common tools to clean all the old oil, use gasoline to clean electric oil, and use gasoline to clean gasoline again. After cleaning, put the angular contact ball bearing on the cleaning towel or punching machine on the stage at work while wearing film gloves.

Two, how to judge whether the bearing has been cleaned and clean

1. Touch friction: After bearing cleaning, carefully observe that there will always be some remaining oil in the outer dovetail guide rail, on the rolling body and in the cracks of ball bearings. When detecting, the remaining oil of the clean micrometer should be scraped out first, wiped on the thumb, and gradually rubbed with the ring finger. If there is a rustling sound between the fingers, it indicates that the bearing is not cleaned and clean, and it should be washed again.

2. Rotation detection: Hold the bearing in your hand, pinch the inner hole tightly, rotate the outside horizontally, and reach the standard with easy rotation, no obstruction and no vibration.