High definition Bearing 30211 - Thrust Tapered Roller Bearings – Chengfeng Bearing

Product features：

Thrust tapered roller bearings are equipped with truncated truncated rollers (the big end is spherical), and the rollers are accurately guided by the rib of the raceway ring (shaft washer, seat ring). The design is such that the vertices of the conical surfaces of the shaft washer and the raceway surface, the raceway surface and the roller rolling surface intersect at a point on the bearing centerline.
One-way bearings can withstand one-way axial loads.
Bidirectional bearings can withstand bidirectional axial loads.
The two-way bearing adopts clearance fit, and the shaft sleeve must be used to locate the middle ring axially.
Thrust tapered roller bearing with outer cover can carry larger axial force and lower speed.

Application

This type of bearing is mainly used in crane hook, oil drilling rig swivel, rolling mill roll diameter, etc.

Size range:

Inner diameter size range: 38mm~670mm
Outer diameter size range: 66mm~900mm
Width size range: 18mm~319mm

Tolerance: P0, P6, P5, P4 precision grades are available.
cage
The cage generally adopts brass solid frame and stamping frame.
Supplementary code:
X1-Outer diameter non-standard:
X2 – width (height) non-standard;
X3-outer diameter, width (height) non-standard (standard inner diameter):
X4 – Inner diameter rounding non-standard bearings, when the inner diameter size is non-integer and has two or more decimal places, X4 is used to indicate rounding.
V-full complement of rolling elements (without cage)
/HG-rings and rolling elements or just the rings are made of other bearing steels (/HG-5GrMnMo;/HG1-55SiMoVA;/HG2-GCr18Mo:/HG3-42CrMo:/HG4-GCr15SiMn).
W281- Indicates special bearing for rolling mills (implementing the Q/WZJ14281 standard).
Q1 – Aluminum Iron Manganese Bronze.
F1-carbon steel;
F3-ductile iron;
/HA-ring rolling elements and cages or just the rings and rolling elements are made of vacuum smelted bearing steel.
/HC a set of rings and rolling elements or only the rings or only the rolling elements are made of carburized steel (/HC-20Cr2Ni4A;
/HC1-20Cr2Mn2MoA;/HC2-15Mn;/HC3-G20CrMo); M-brass solid cage;
The inner hole of the inner ring of the YA2-bearing is different from the standard design.
YA3-The end face of the bearing ring is different from the standard design;
YAD – the same type of bearing, the structure has more than two changes at the same time;