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Correct device for the bearing
Source: China Bearing Network Time: 2013-12-16
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1. The device of the bearing environment The device of the bearing is to be prepared in front of the device in a dry and hygienic environment:
Depending on the size of the bearing and the environment in which it is used;
Prepare the parts, things and equipment necessary for the device,
Prepare all parts of the required unit; and remove it thoroughly in front of the unit.
• Check the dimensions and shape accuracy of all required devices according to the drawings.
Pay attention to: before the device preparation work is completed; do not disassemble the bearing packaging; avoid contaminating the bearing. Cylindrical bore bearing device press-fit method for small bearings with interference cooperation; the bearing can be press-fitted onto the shaft or the housing by mechanical or hydraulic means.
When the heating method is applied to a bearing with a large scale or a large amount of interference; the principle of thermal expansion and contraction can be used to install the device. Usually, oil bath heating or electric induction heating is used.
Electric induction heating advantages:
? Health and pollution-free? punctuality, constant temperature? Brief operation 3. The bearings with tapered bores in the tapered bore bearing are always equipped with interference cooperation. The clearance adjustment of the bearing device is concerned with the cylindrical bore bearing; the radial clearance after the device is determined by the selected housing bore and the axial resolution of the shaft; the greater the interference between them; the diameter behind the device The smaller the clearance is. Therefore, it is very important to correctly select the shaft and hole of the bearing.
A device for a tapered bore bearing; its interference is not like the bore of a cylindrical bore bearing; it is determined by the common shaft of the selected shaft; and depending on whether the bearing is pushed on the tapered journal or the tapered adapter sleeve The length of the interval.
The initial radial clearance of the bearing is gradually reduced during the push-in process. It is necessary to first measure the initial radial clearance of the bearing. In the process of pushing the bearing; The radial clearance is measured; the radial clearance reduction and the ambition interference cooperation stop until the demand is reached.
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