K81144M Axial Cylindrical Roller And Cage Assemblies

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K81144M

Bore Diameter:220 mm

Outside Diameter:270 mm

Width:15 mm

Weight:2.04 kg

Min. Order:1 Piece

The K81144M 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 K81144M bearing is a Axial cylindrical roller and cage assemblies, Single row with an inner diameter of 220 mm , an outer diameter of 270 mm, a width of 15 mm. GCr15SiMn rolling mlement. Its dynamic axial rated load is approximately 418961 N, its static axial rated load is approximately 1727947 N. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

220 mm

Outside Diameter:

270 mm

Thickness:

15 mm

Weight:

2.04 KG

Dynamic load Capacity, axial:

418961 N

Static load Capacity, axial:

1727947 N

Fatigue Load Limit, Axial:

134399 N

Reference speed (Grease rpm):

459

Limiting speed (Oil rpm):

1157

Specifications:

Structure:

Cylindrical Roller Thrust Bearings

Number of Rows:

One

Cage Type:

M = Brass Cage

Rolling Mlement Material:

GCr15SiMn

Operating Temperature:

-20 to 120 °C

System of Measurement:

Metric

Series:

K811 series (K811..-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

K81144M bearings ( 220 mm x 270 mm x 15 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	K81144M
Bearing Type	Axial cylindrical roller and cage assemblies, Single row
Series	K811 series (K811..-M)
Cage	M = Brass Cage
Rows NO.	One
Weight [lb]	4.4974
C_a Axial Dynamic [lbf]	94182
C_0a Axial static [lbf]	388442
C_ua Axial Fatigue [lbf]	30212
n_B Speed ratings (grease) [rpm]	459
n_G Speed ratings (oil) [rpm]	1157
Dw [inch]	0.5906
D_c [inch]	10.6299
D_c1 [inch]	8.6614
E_b Raceway [inch]	8.9764
E_a Raceway [inch]	10.3937

The K81144M 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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