THRUST ROLLER BEARINGS (3. Spherical Roller Thrust Bearings)

THRUST ROLLER BEARINGS

3. Spherical Roller Thrust Bearings

Thrust spherical roller bearings are the same as spherical roller bearings. The raceway surface of the race is a spherical surface centered on the same point on the central axis of the bearing. The rollers of this type of bearing are spherical, so it has the function of self-aligning. , It is not very sensitive to coaxiality and shaft deflection. This type of bearing has a very large axial load capacity. It can also bear a number of radial loads while bearing axial loads, but the radial load must not exceed 55% of the axial load. This type of bearing is mainly used in hydroelectric generators, vertical motors, ship propeller shafts, tower cranes, extruders, etc.

Product category

The Spherical Roller Thrust Bearings currently produced by ZWZ can be roughly divided into the following structural types：

Spherical Roller Thrust Bearings (symmetric)

Spherical Roller Thrust Bearings (asymmetric)

• Spherical Roller Thrust Bearings (symmetric)
• Spherical Roller Thrust Bearings (asymmetric)

Tolerance

ZWZ can provide products of general grade, 6, 5, and 4 grade.

Cage

The cage generally adopts brass solid frame and stamping frame. When the brass solid cage is used, the rear code of the cage is not marked, and the other marks are corresponding to the rear code.

Equivalent dynamic load

P=Fa+1.2Fr

Equivalent static load

P0=Fa+2.7Fr

This type of bearing is mainly used in oil drilling rigs, iron and steel making machinery.

Bearing code

-1, -2,  represents a series of non-standard X1, X2, YA2,…

E  Internal design changes, reinforced structure F1 carbon steel.

F2  Graphite steel

F3  Ductile iron

HC The rings and rolling elements are either only the rings or only the rolling elements are made of carburized steel（/HC-20Cr2Ni4A；/HC1 20Cr2Mn2MoA；/HC2-15Mn；/HC3-G20CrMo）

/HCOR means that the outer ring and rolling elements are made of carburized steel

J  Steel plate stamping cage, additional number difference when the material changes

M  Brass solid cage

P5  Tolerance level meets the standard level 5

P4  Tolerance level conforms to the 4 level specified by the standard

S1  Bearing ring has been subjected to high temperature tempering treatment, the working temperature can reach 200℃

SP  Ultra-precision level, dimensional tolerance is equivalent to level 5, rotation accuracy is equivalent to level 4

TN1  Nylon

YA3  The end face of the bearing ring is different from the standard design

YA7  Bearing ribs or retaining rings are different from the standard design

YA8  Cage structure change

YAB  Structure and technical requirements changed at the same time

YAD  Bearings of the same type, with more than two changes in structure at the same time

YB2  Bearing size and tolerance requirements change

YB5  Shape and position tolerance have special requirements

3D graphics

2D graphics