Spherical Roller Thrust Bearing

Spherical Roller Thrust Bearings 1.GCr15, GCr15SiMn, G20Cr2Ni4A 2.ID:100mm-1500mm 3.ISO9001:2000 4.Have stock

Same as spherical roller bearings, housing washer raceway surface is a spherical one which takes the same point of bearing central axle as the spherical center point.Different with other thrust bearings, these bearings are characterized by its high axial load carrying capacity, meanwhilee,they can carry certain radial load, however, the radial load should not exceed 55% of the axial load. The track of the housing washer is spherical, and the rolling bodies are spherical shaped. This makes the bearing self-aligning and therefore insensitive to misalignment.

If the load P and P0 do not exceed 0.05 Co, and the shaft washer rotates, then the following angles of misalignment are permissible :

Bearing diameter series	Aligning angle
200 series 300 series 400 series	1°- 1. 5° 1.5°- 2° 1.2°- 3°

The figures with small values are suitable for comparatively large size bearings, and when the load increases, the permissible misaligment shall decrease.

Applications of these bearings can be found in hydroelectric generators, vertical motors,propeller axle of vessels, tower cranes and squeezing presses.

Types :

LYC spherical roller thrust bearings can be classified into following types :

Symmetric spherical roller thrust bearings

Asymmetric spherical roller thrust bearings

Dimension range :

The principal dimensions of ZWA spherical roller thrust bearings have been listed as followed,

  Bore diameter range : 60mm-1120mm

  Outer diameter range : 130mm-1460mm

  Width range : 39mm-354mm

Tolerance :

LYC can supply bearings with P0, P6 and P5 precision .

Cage :

LYC spherical roller thrust bearings generally use brass cages and pressed cages. When they use brass cages, there is no suffix in the bearing code: when they use other cages, there is relative suffix in the bearing code.

Minimum axial loads :

The minimum axial load Famin required by the spherical roller thrust bearings when they are in working condition is the bigger value calculated according to the following two formulars :

              Coa                                               Coa

  Famin=——                  Famin=1.8Fr+1.33(——) ²×10 -7

              2000                                            2000

Where :

  Famin : the minimal axial load required Kn

       N: rotational speed r/min

Coa:  basic static load rating Kn

  Fr: radial load kN

Equivalent dynamic loads

      P=Fr + 1.2 Fr

Equivalent static loads

      P0=Fa+2.7Fr

Applications of these bearings can be found in the oil drillers and iron-making or steel-making machines.

Spherical Roller Thrust Bearing