China Ningbo Bearings Manufacturer

How to install the KOYO Rolling Bearing properly?

02.22.2012 in Blog by admin

KOYO bearings installed, you should check ring and shaft centerline axis vertical. Method is to face dial indicator fixed on the tank shell, the head of the table to touch the bearing axis in the rotating bearing ring raceway on top, while observing dial gauge pointer, if the pointer deflection, indicating the ring axis and the axis is not perpendicular to the centerline. Tank shell hole deeper, the head can also use an extension of the dial gauge tested. Bearing is installed correctly, the seat
When installing the bearing, shaft ring and should test the vertical centerline axis. Method is to face dial indicator fixed on the tank shell, the head of the table to touch the KOYO bearing ring raceway above the rotating shaft bearings, while observing dial gauge pointer, if the pointer deflection, indicating the ring axis and the axis is not perpendicular to the centerline. Tank shell hole deeper, the head can also use an extension of the dial gauge tested.
1, riveted or welded cage Quality:
Rivet head is mainly observed deviation, skew, relaxation, lack of meat or eyelid, welding position is correct, solder is too large or too small, whether caused by excessive soldering or welding is not strong stuck rolling phenomenon. More than a few of our key check in the check part of the rolling bearing, in addition to other parts of the examination, in addition to poor quality, such as typing, such as illegible, damaged, shall be considered as defective, can not be serious acceptance.
2, from the skin and fold:
These two defects combined local and base metal is not strong, but often in varying degrees around the existence of the phenomenon of decarburization or carbon-poor material is easy to caving, pressure or wear concave, KOYO bearing on the life and accuracy at a disadvantage.
3, rust, black and pitting:
The latter two are easy to store water and dirt defects, most likely to develop into rust. The corrosion is the result of poor installation, wear and fatigue of the pollution of early, severe corrosion will make bearing scrap.
4, a variety of mechanical injuries:
Such as abrasion, scratches, crushed, bruised, etc., can cause adverse bearing installation, causing partial load and stress concentration, resulting in a decline in rotation accuracy and service life.
5, a variety of cracks:
Raw materials such as cracks, forging cracks, heat treatment and grinding cracks and other cracks, these cracks in the bearing after the operation process, will be the rapidly expanding source of stress concentration, resulting in rupture of the bearing, KOYO bearing on the safety of life and a great impact. In fact, for the important purpose of the bearing, bearing factory has 100% of its constituent parts, or ray magnetic flaw detection inspection.
Bearing is installed correctly, the seat can automatically adapt to the rolling of the scroll, to ensure the rolling circle in the upper and lower raceway. If installed backwards, not only the bearing is not working properly, and the mating surface would be subjected to severe wear. As the shaft ring and seat ring and the difference is not very clear, the assembly should be careful not to mistake. In addition, the rolling of the seat ring and housing bore should be left between 0.2-0.5mm gap to compensate for parts processing, installation errors caused by inaccurate, center bearing ring when the shift operation, this gap can be to ensure its automatic adjustment, avoid touching the friction to normal operation. Otherwise, it will cause severe damage to the bearing.

Tags: Ball Bearing, KOYO Bearing, Rolling Bearing