Precision bearing fixed?

Precision bearing is fixed, the problem recently asked the number of times or more, is a lot of people know that such as bearing fixed need of bearing cage and so on, but for bearing fixed orientation method, as well as the steps ah still somewhat confused. This article will be detailed explain for everybody about precision bearings fixed bearing positioning method and fixed installation steps. Precision bearing fixed bearing positioning method 1, lock nut positioning method: USES the interference fit of bearing inner ring installation, often make the inner ring side against the shaft shoulder, on the other side, with a lock nut ( KMT or KMTA series) Fixed. With taper hole of the bearing installed directly on the cone axis neck, usually with a lock nut is fixed on the shaft. 2, spacer positioning method: between the bearing ring or between the bearing ring and adjacent parts adopt spacer or baffle, instead of whole shoulder or bearing shoulder, it is very convenient. In these cases, the size and shape tolerance can also be applied to relevant parts. 3, ladder shaft sleeve positioning: another kind of bearing axial positioning method is to use ladder shaft sleeve. These sleeves don't suitable for precision bearing configuration, compared with the threaded lock nut, beating its smaller, provide higher accuracy. Ladder shaft sleeve is usually used in ultra high speed spindle, for this kind of spindle, the traditional locking device are unable to offer the enough precision. 4, fixed cover positioning method: USES the interference fit of bearing outer ring is installed, usually make on the side against the bearing outer ring's shoulder, the other side is cover fixed with a fixed. Fixed cover and the fixed screw in some cases have a negative impact on bearing shape and performance. If the wall thickness between the bearing and the screw hole is too small, or screw fastening too tight, outer ring raceway may be out of shape. Light series of ISO size 19 series more than 10 or more series easily affected by such damage. Precision bearings fixed bearing installation steps: 1, the shaft bearing before installation, you must first remove the fixed bearing a coat of fixed pin, the shaft neck at the same time clean exterior burnish is smooth, and shaft neck with anti-rust and lubrication oil ( Allows for a slightly bearings on the shaft rotation) 。 2, bearing and bearing fitting surface with lubricating oil, the double row tapered roller bearing load bearing. Then a good bearing and bearing assembly on the shaft, pushed to the required location for installation. 3, fixed bolts do not tighten the bearing seat, to make the bearing coat in bearing internal energy. Also installed on the same shaft and the bearing, axis, turn a few laps, automatic alignment position for fixed bearing itself. Then good bearing bolts. 4, eccentric sleeve. After the eccentric sleeve installation is firm, socket head cap screw locking eccentric sleeve. Tags: precision bearing fixed