2014年9月18日星期四

mobile crane bearing self-aligning ball bearing

The 8.1 outer raceway is spherical, with self-aligning properties. Because the processing installation and shaft bending causes for the mobile crane bearing seat hole is not concentric with. Adjust the skew angle is within 3 degrees.
Small metric bearing angle 8.2 bearing contact, almost invariant under the action of axial force, the axial bearing capacity is small. Mainly bear radial load, the radial load at the same time, can also be
A small amount of axial load, limit the speed ratio of deep groove ball bearing low.
9, four point contact ball bearing
Detachable type structure can bear radial load, two-way axial load, axial displacement can be limited in two directions, angular contact ball bearing axial space but more than double the size of the angular contact ball bearing occupies little single Spherical roller bearings bearing can replace the front or back of the combination of portfolio. Because of double half inner (or outer ring), ball number, with larger bearing capacity. Four point contact ball bearing axial, radial loads applied to bear pure axial load or axial load in. Compared with the bearing and the other ball bearings, when
The radial clearance and axial clearance, smaller, higher limit speed. In normal working condition, the axial load bearing any direction, can form a contact angle, ball and inner, outer raceway each contact point, to avoid the occurrence of sliding friction contact zone. Therefore, the bearing should not be subjected to radial force and load.
10, spherical roller bearing
The outer ring raceway is a part of the spherical bearing, with internal self-aligning performance, adaptation to relative deflection of shaft and Angular contact ball bearings housing bore. Can bear radial load and shock load, but also can bear bidirectional certain axial load. The axial displacement of the bearing can limit shaft or shell in bearing axial clearance range. This kind of bearing structure principle and characteristics and self-aligning ball bearing the same load, the capacity and the speed limit's permission, can be interchanged. Tapered bore bearing by using fasteners or unloading easy axis of the folding.

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