812/500M Axial Cylindrical Roller Bearings, Single Direction, Single Row, Brass Cage

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812/500M

Bore Diameter:500 mm

Outside Diameter:670 mm

Width:135 mm

Weight:144 kg

Min. Order:1 Piece

The 812/500M 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 812/500M bearing is a Axial cylindrical roller bearings, Single direction, Single row with an inner diameter of 500 mm , an outer diameter of 670 mm, a width of 135 mm. It typically uses PN (ABEC-1) grade precision tolerances and GCr15SiMn rings, GCr15SiMn rolling mlement. Its dynamic axial rated load is approximately 4248472 N, its static axial rated load is approximately 17989601 N. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

500 mm

Outside Diameter:

670 mm

Thickness:

135 mm

Weight:

144 KG

Dynamic load Capacity, axial:

4248472 N

Static load Capacity, axial:

17989601 N

Fatigue Load Limit, Axial:

1227775 N

Reference speed (Grease rpm):

131

Limiting speed (Oil rpm):

469

Specifications:

Old Designations:

812/500M

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

812/500M bearings ( 500 mm x 670 mm x 135 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	812/500M
Bearing Type	Axial cylindrical roller bearings, Single direction, Single row
Design	1
Series	812 series (812..-M)
Cage	M = Brass cage
Accuracy class	PN (ABEC-1)
Rows NO.	One
Axial cylindrical roller and cage assemblies	K812/500-M
Housing locating washer	GS812/500
Shaft locating washer	WS812/500
Weight [lb]	317.4624
C_a Axial Dynamic [lbf]	955056
C_0a Axial static [lbf]	4044062
C_ua Axial Fatigue [lbf]	276003
n_B Speed ratings (grease) [rpm]	131
n_G Speed ratings (oil) [rpm]	469
d φ Inside [inch]	19.6850
D Φ Outside [inch]	26.3779
T Thickness [inch]	5.3150
B Width [inch]	1.5551
D₁ [inch]	19.8819
d₁ [inch]	26.1811
r(min.) [inch]	0.1969
r_a(max.) [inch]	0.1969

The 812/500M 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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812/500M Axial Cylindrical Roller Bearings, Single Direction, Single Row, Brass Cage

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