81236MPB Axial Cylindrical Roller Bearings, Single Row, Single Direction, Brass Cage

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81236MPB

Bore Diameter:180 mm

Outside Diameter:250 mm

Width:56 mm

Weight:9.9 kg

Min. Order:1 Piece

The 81236MPB 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 81236MPB bearing is a Axial cylindrical roller bearings, Single row, single direction with an inner diameter of 180 mm , an outer diameter of 250 mm, a width of 56 mm. It typically uses PN (ABEC-1) grade precision tolerances and GCr15SiMn rings, GCr15SiMn rolling mlement. Its dynamic axial rated load is approximately 689665 N, its static axial rated load is approximately 2439791 N. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Interchange code: 812 36 M , 81236MPB

Dimensions:

Inside Diameter:

180 mm

Outside Diameter:

250 mm

Thickness:

56 mm

Weight:

9.9 KG

Dynamic load Capacity, axial:

689665 N

Static load Capacity, axial:

2439791 N

Fatigue Load Limit, Axial:

212456 N

Reference speed (Grease rpm):

571

Limiting speed (Oil rpm):

1297

Specifications:

Structure:

Cylindrical Roller Thrust Bearings

Number of Rows:

One

Precision Rating:

PN (ABEC-1)

Bearing Material:

GCr15SiMn

Cage Type:

MPB = Brass Cage

Rolling Mlement Material:

GCr15SiMn

Bore Type:

Cylindrical bore

Operating Temperature:

-20 to 120 °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

81236MPB bearings ( 180 mm x 250 mm x 56 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	81236MPB
Bearing Type	Axial cylindrical roller bearings, Single row, single direction
Equivalent	812 36 M , 81236MPB
Series	812 series (812..-M)
Cage	MPB = Brass Cage
Accuracy class	PN (ABEC-1)
Rows NO.	One
Axial cylindrical roller and cage assemblies	K81236-M
Housing locating washer	GS81236
Shaft locating washer	WS81236
Weight [lb]	21.8255
C_a Axial Dynamic [lbf]	155036
C_0a Axial static [lbf]	548465
C_ua Axial Fatigue [lbf]	47760
n_B Speed ratings (grease) [rpm]	571
n_G Speed ratings (oil) [rpm]	1297
d φ Inside [inch]	7.0866
D Φ Outside [inch]	9.8425
T Thickness [inch]	2.2047
D₁ [inch]	7.2047
d₁ [inch]	9.7244
r(min.) [inch]	0.0591
Mounting dimensions
d_a [inch]	9.6456
D_a(max.) [inch]	7.4803
r_a(max.) [inch]	0.0591

The 81236MPB 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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81236MPB Axial Cylindrical Roller Bearings, Single Row, Single Direction, Brass Cage

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