81260M Axial Cylindrical Roller Bearings, Single Direction, Single Row, Brass Cage

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81260M

Bore Diameter:300 mm

Outside Diameter:420 mm

Width:95 mm

Weight:48.25 kg

Min. Order:1 Piece

The 81260M Cylindrical roller thrust bearings are specifically designed for applications requiring heavy axial loads and stringent positioning accuracy. Classic applications include heavy-duty vertical lathe tables, marine propeller shaft thrust devices, large gearboxes, wind turbine main gearboxes, rolling mill pressing mechanisms, and crane slewing bearings.

The 81260M bearing is a Axial cylindrical roller bearings, Single direction, Single row with an inner diameter of 300 mm , an outer diameter of 420 mm, a width of 95 mm. It typically uses PN (ABEC-1) grade precision tolerances and GCr15SiMn rings, GCr15SiMn rolling mlement. Its dynamic axial rated load is approximately 1927471 N, its static axial rated load is approximately 7289148 N. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Interchange code: 812 60 M

Dimensions:

Inside Diameter:

300 mm

Outside Diameter:

420 mm

Thickness:

95 mm

Weight:

48.25 KG

Dynamic load Capacity, axial:

1927471 N

Static load Capacity, axial:

7289148 N

Fatigue Load Limit, Axial:

617186 N

Reference speed (Grease rpm):

251

Limiting speed (Oil rpm):

774

Specifications:

Old Designations:

81260M

Structure:

Cylindrical Roller Thrust Bearings

Number of Rows:

One

Precision Rating:

PN (ABEC-1)

Bearing Material:

GCr15SiMn

Cage Type:

M = Brass cage

Rolling Mlement Material:

GCr15SiMn

Bore Type:

Cylindrical bore

Operating Temperature:

-30 to 150 °C

System of Measurement:

Metric

Series:

812 series (812..-M)

Rolling Element:

cylindrical rollers

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

81260M bearings ( 300 mm x 420 mm x 95 mm) have the advantages of extremely high axial load capacity, high rigidity, compact axial structure, and a detachable design for easy installation, and are therefore widely used in the Machine tool worktables, extruders, differentials, wind power equipment, and oil drilling machinery.

Part Number	81260M
Bearing Type	Axial cylindrical roller bearings, Single direction, Single row
Design	1
Equivalent	812 60 M
Series	812 series (812..-M)
Cage	M = Brass cage
Accuracy class	PN (ABEC-1)
Rows NO.	One
Axial cylindrical roller and cage assemblies	K81260-M
Housing locating washer	GS81260
Shaft locating washer	WS81260
Bearing washer	LS75100
Weight [lb]	106.3720
C_a Axial Dynamic [lbf]	433295
C_0a Axial static [lbf]	1638600
C_ua Axial Fatigue [lbf]	138743
n_B Speed ratings (grease) [rpm]	251
n_G Speed ratings (oil) [rpm]	774
d φ Inside [inch]	11.8110
D Φ Outside [inch]	16.5354
T Thickness [inch]	3.7402
B Width [inch]	1.1220
D₁ [inch]	11.9685
d₁ [inch]	16.3386
r(min.) [inch]	0.1181
Mounting dimensions
d_a [inch]	16.2598
D_a(max.) [inch]	12.9134
r_a(max.) [inch]	0.1181

The 81260M Cylindrical roller thrust bearings mainly consist of a shaft ring, a housing ring, cylindrical rollers, and a cage assembly. The rollers are arranged radially, forming a line contact load-bearing structure.

The advantages of cylindrical roller thrust bearings include extremely high axial load capacity, excellent rigidity, and a low coefficient of friction. Optimized roller end faces and flanges can accommodate slight eccentricity and impact loads, while also featuring a compact structure and high rotational accuracy.

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81260M Axial Cylindrical Roller Bearings, Single Direction, Single Row, Brass Cage

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