81156-M Axial Cylindrical Roller Bearings, Single Direction, Single Row, Brass Cage

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81156-M

Bore Diameter:280 mm

Outside Diameter:350 mm

Width:53 mm

Weight:12.6 kg

Min. Order:1 Piece

The 81156-M 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 81156-M bearing is a Axial cylindrical roller bearings, Single direction, Single row with an inner diameter of 280 mm , an outer diameter of 350 mm, a width of 53 mm. It typically uses PN (ABEC-1) grade precision tolerances and GCr15SiMn rings, GCr15SiMn rolling mlement. Its dynamic axial rated load is approximately 869767 N, its static axial rated load is approximately 3648328 N. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Interchange code: 811 56 M , 81156MPB

Dimensions:

Inside Diameter:

280 mm

Outside Diameter:

350 mm

Thickness:

53 mm

Weight:

12.6 KG

Dynamic load Capacity, axial:

869767 N

Static load Capacity, axial:

3648328 N

Fatigue Load Limit, Axial:

302207 N

Reference speed (Grease rpm):

313

Limiting speed (Oil rpm):

902

Specifications:

Old Designations:

81156M

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:

811 series (811..-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

81156-M bearings ( 280 mm x 350 mm x 53 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	81156-M
Bearing Type	Axial cylindrical roller bearings, Single direction, Single row
Design	1
Equivalent	811 56 M , 81156MPB
Series	811 series (811..-M)
Cage	M = Brass cage
Accuracy class	PN (ABEC-1)
Rows NO.	One
Axial cylindrical roller and cage assemblies	K81156-M
Housing locating washer	GS81156
Shaft locating washer	WS81156
Weight [lb]	27.7780
C_a Axial Dynamic [lbf]	195523
C_0a Axial static [lbf]	820144
C_ua Axial Fatigue [lbf]	67936
n_B Speed ratings (grease) [rpm]	313
n_G Speed ratings (oil) [rpm]	902
d φ Inside [inch]	11.0236
D Φ Outside [inch]	13.7795
T Thickness [inch]	2.0866
B Width [inch]	0.6102
D₁ [inch]	11.1417
d₁ [inch]	13.6614
r(min.) [inch]	0.0591
Mounting dimensions
d_a [inch]	13.6220
D_a(max.) [inch]	11.3386
r_a(max.) [inch]	0.0591

The 81156-M 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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81156-M Axial Cylindrical Roller Bearings, Single Direction, Single Row, Brass Cage

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