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The joint venture between rolling bearing and shaft is called transition joint venture, and the joint venture between race and bearing seat hole is called clearance joint venture. Koyo Rolling Bearing The middle shaft ring of two-way bearing shall be fixed on the shaft to avoid migration and transformation with respect to the shaft.
The installation method of Koyo bearing is mostly shaft modification under common conditions, so the joint venture between inner ring and shaft is over win joint venture, Koyo Rolling Bearing and the joint venture between outer ring and bearing chamber is clearance joint venture.
When installing the rolling bearing, first fix the dial indicator on the end face of the box shell so that the contact of the dial indicator is against the raceway of the bearing shaft ring. While moving and changing the bearing, observe the pointer of the dial indicator Koyo Rolling Bearing while moving and changing. If the pointer is deflected, it is clear that the shaft ring is not perpendicular to the middle line of the shaft.
This is a good way to hone the perpendicularity of the shaft ring and the shaft centerline. The Koyo bearing device is installed reversely. Not only does the bearing work Koyo Rolling Bearing abnormally, but also all joint surfaces will be seriously worn. Because the difference between the shaft ring and the seat ring is not obvious, special care should be taken in the assembly, and the reverse assembly should not be present.
The accurate time division of the device should be that its seat ring can actively adapt to the rolling of the rolling element and ensure that the rolling element is located in the raceway of the upper and lower circles. In addition, Koyo Rolling Bearing a clearance of 0.2-0.5mm shall be reserved between the seat ring and the bearing seat hole of the self-aligning ball bearing to compensate for the error caused by inaccurate processing of parts and devices.
When the middle of the bearing ring is offset during operation, Koyo Rolling Bearing this clearance can ensure its active adjustment, avoid contact friction and make it operate normally. Otherwise, the bearing will be seriously damaged.
1. Common types of rolling bearings with race rule detection method: rolling mill bearing, joint bearing, rotary table bearing, outer spherical bearing with seat, thrust ball bearing, one-way bearing, full loaded roller bearing, thrust roller bearing Koyo Rolling Bearing and linear motion bearing.
For rolling bearings with large diameter, the clearance is large, so it can be detected directly with a narrow feeler gauge. For Koyo bearing with small diameter, the clearance is small, so it is inconvenient to Koyo Rolling Bearing measure with feeler gauge, but the side clearance of bearing must be measured with feeler gauge with appropriate thickness.
2. Lead pressure detection method
The lead pressing method is more accurate than the feeler gauge, but it is more troublesome. The aluminum wire used for testing should be soft, and the diameter should not be too large or too small. Koyo Rolling Bearing The ideal diameter is 1.5 ~ 2 times of the gap. In practical work, soft lead wire is usually used for testing.
cut it into a small section 15 ~ 40mm long, put it on the journal and the interface between the upper and lower bearings, cover the bearing cover, Koyo Rolling Bearing tighten the fixing bolts according to the specified torque, then loosen the bolts, remove the bearing cover,
detect the thickness of the flattened lead wire with a micrometer, and calculate the average value of the bearing top clearance. If the top clearance is too small, a pad can be added on the joint surface of the upper and lower pads. If it is too large, the pad shall be reduced, scraped or the tile shall be poured again.
After the installation of Koyo bearing, in order to check whether the installation is correct, an operation inspection shall be carried out. Small machines can be rotated by hand to confirm whether they rotate smoothly.
The inspection items include poor operation caused by foreign matters, scars and indentation, unstable torque caused by poor installation and poor processing of mounting base, excessive torque caused by too small clearance, installation error and sealing friction, etc. If there is no abnormality, power operation can be started.