Cylindrical roller bearings are rolling bearings composed of a disc-shaped roller and a cylinder, which are mainly used to bear radial loads, but can also bear axial loads and torsional loads. The rollers of cylindrical roller bearings are arranged in parallel, and there is a spacer between the rollers, which can effectively avoid the inclination of the rollers or the friction between the rollers, and reduce the increase of rotating torque.
U、NU Type:
The outer ring of N-type bearing has no guard edge, and the two sides of the inner ring have guard edge. The shaft can be allowed to shift in both axial directions relative to the bearing seat.
NU type bearing has two sides of the outer ring with guard, the inner ring without guard. Displacement in both axial directions between the shaft and the bearing seat can also be allowed.
Therefore, this type of structure is suitable for use as a floating end bearing.
advantage
1, with excellent radial load characteristics, strong bearing capacity, suitable for bearing heavy loads.
2, can withstand large axial impact load, and can be kept parallel with the shaft.
3, with excellent radial rigidity, and shaft contact will not produce excessive displacement.
4, at high temperature can also withstand a certain axial load, and has self-lubricating ability.
5, the friction coefficient is small, suitable for high-speed rotation, the limit speed is close to the deep groove ball bearing.
6, cylindrical roller bearings are separated bearings, inner or outer rings can be separated, easy to install and disassemble.
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