T311-902A1 Thrust Tapered Roller Bearings

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T311-902A1

Bore Diameter:76.2 mm

Outside Diameter:161.925 mm

Width:33.338 mm

Min. Order:1 Piece

The T311-902A1 Thrust tapered roller bearings are suitable for heavy-duty, high-rigidity axial load applications. Classic applications include crane slewing mechanisms, oil drilling rig rotary tables, rolling mill pressing mechanisms, heavy machine tool spindles, ship propeller thrust shafts, and the axial positioning ends of large gearboxes.

The T311-902A1 bearing is a Thrust Tapered Roller Bearings with an inner diameter of 76.2 mm , an outer diameter of 161.925 mm, a width of 33.338 mm. It typically uses PN (ABEC-1) grade precision tolerances and bearing steel rings, bearing steel rolling mlement. Its dynamic axial rated load is approximately 148078 N, its static axial rated load is approximately 1752327 N. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

76.2 mm

Outside Diameter:

161.925 mm

Thickness:

33.338 mm

Dynamic load Capacity, axial:

148078 N

Static load Capacity, axial:

1752327 N

Specifications:

Structure:

Thrust Tapered Roller Bearings

Number of Rows:

One

Precision Rating:

PN (ABEC-1)

Bearing Material:

bearing steel

Rolling Mlement Material:

bearing steel

Bore Type:

Cylindrical bore

Operating Temperature:

-30 to 110 °C

System of Measurement:

Inch

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

200 Piece

Port:

Tianjin, Shanghai, Shenzhen, Guangzhou or Qingdao

Payment term:

by T/T in advance

Delivery time:

2-3 days for stock, 25-30 days for bulk production

Detailed description

T311-902A1 bearings ( 76.2 mm x 161.925 mm x 33.338 mm) have the advantages of Withstanding extremely large and heavy unidirectional axial thrust, and are therefore widely used in the crane hooks, oil well swivels, pulp refiners.

Part Number	T311-902A1
Design type	TTHD: with cage
Bearing Type	Thrust Tapered Roller Bearings
Interchangeable	TIMKEN T311-902A1
Manufacturer Part Code	T311-902A1
Units	Inch
Tolerance class	PN (ABEC-1)
C_0a Axial Static [lbf]	393923
C_a Axial Dynamic [lbf]	33287
d φ Inside [inch]	3.0000
D Φ Outside [inch]	6.3750
T Width [inch]	1.3125
r Fillet Radius [inch]	0.1299
R (Max) Shaft Fillet Radius [inch]	0.1299

The T311-902A1 Thrust tapered roller bearings mainly consist of a shaft ring, a housing ring, tapered rollers, and a cage. The raceways of the shaft ring and housing ring have a conical surface structure, and the rollers make line contact with the raceways. The cage is typically made of machined brass or stamped steel to ensure proper roller guidance.

Thrust tapered roller bearings can withstand enormous unidirectional axial loads and also possess a certain radial load-bearing capacity, far exceeding that of thrust ball bearings. They offer high rigidity, strong impact resistance, and precise axial positioning and preload can be achieved through the tapered roller structure.

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