Roller Bearings

Roller bearings are rollering bearings use short cylindrical, tapered and tambour roller as roller body.

Structures

Roller bearings' parts are almost the same with ball bearings', there're main four basic units: roller, inner ring, outer ring and cage.

The biggest difference between them is that ball bearings apply to high speed and middle loads industry situation, some kinds of roller bearings can reach high speed, the advantage is the capacity of taking loads are much better tan ball bearings.

Main extend types

1. Cylinder roller bearings are mail take radial loads and combine loads, easy to reach high speed.

2. Tapered roller bearing, the design are used to take combine loads, they are adaptable for many uses.

3. This kind of bearings' design are similar to self-aligning ball bearings'. The difference is that it can take radial and axial loads on both directions.

4. Cylindrical roller thrust bearings are mainly used in the situation that trust bearings lack of load capacity.

5. They can take relatively faster speed, heavy axial loads on one direction and heavy radial loads.

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• Spherical Roller BearingsSpherical roller bearings have two rows of rollers, mainly take radial load, can also take axial load in any one direction. This kind of bearings have high radial load capacity, especially apply to the environments of heavy load or vibrate load, but they can't take axial load only. These bearings' outer raceway is spherical surface which contribute to aligning function, insensitive to misalignment of the shaft relative to the housing.

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• Self-aligning ball bearingsThe outer ring of self-aligning ball bearings' raceway consist of two balls units composed by spheres, inner ring, balls and cage. The curvature center and bearing center line are the same. So the inner ring, ball and the cage can rotate around the bearing center. These bearings can be made into both opened and sealed. Self-aligning ball bearings have two structures: cylindrical bore and taper bore.