Backing bearings are particularly thick outer ring of the rolling bearing, when used to form a group to be mounted on the shaft of a stationary support rollers. Pressure on the work roll through the intermediate roller and the support roller is passed to the system to the rack through the saddle. Generally used for multi-roll cold rolling mill equipment can also be used for other occasions, such as straightening machine.
2013年8月9日星期五
Cylindrical roller bearings tectonic pattern
No outer wall and the inner wall N0000 type cylindrical roller bearings NU0000 bearing acceptable such large radial load, high speed limit, do not bind the axial displacement of shaft or housing, can not accept axial load .
2. Inner and outer rings with ribs Cylindrical roller bearings NJ0000 type, NF0000 bearing shaft or housing can be bound axial displacement in one direction, and can accept a smaller axial load. NU0000 + HJ0000 type, NJ0000 + HJ0000 type, NUP0000 type bearings in the axial clearance of imported bearings shaft or housing areas bondage axial displacement in both directions. And accept a smaller two-way axial load.Cylindrical roller bearings features
1 roller and raceway contact or repair offline contacts, radial load capacity, suitable to withstand heavy load and shock load.
2 small friction coefficient, suitable for high speed, speed close to deep groove ball backing bearings.
3.N type and NU type can move axially, to accommodate misalignment due to thermal expansion or of the shaft and the housing due to changes in relative position, can be used for supporting the free end.
4 pairs of shaft or housing bore machining higher, bearing outer ring axis relative deflection after installation should be strictly controlled to avoid contact stress concentration.
5 inner or outer ring detachable, easy installation and removal.
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