NSK 6800zz Bearing
Thrust Roller Bearing
A built-in thrust ball bearing reduces wear from adjacent shaft components, while the needle-roller bearing supports radial loads. Face-Mount Crossed-Roller Bearings Mounting holes on the inner and outer rings allow for fastening onto hollow joints and shafts.
A roller bearing uses a rolling element to reduce rotational friction and to support a load. Rather than use balls as the rolling element, a roller bearing relies on cylinders to carry either a load. Roller bearings provide a good balance between cost, size, weight, carrying capacity, durability, accuracy, and coefficient of friction. Thrust roller bearings only carry axial loads but can handle heavy loads with high axial rigidity. The thrust roller bearings, roller, and cage assemblies rest between the raceway rings. Spherical thrust roller bearings rely on convex rollers and have a self-aligning capability because of the barrel-shape of the rollers. The bearings consist of one row of rollers and have a larger contact angle. Tapered roller thrust bearings utilize tapered rollers while cylindrical roller thrust bearings have single row, double row, 3 row, 4 row, and duplex roller types.
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