89424-M Axial Cylindrical Roller Bearings, Double Row, Single Direction, Brass Cage

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89424-M

Bore Diameter:120 mm

Outside Diameter:250 mm

Width:78 mm

Weight:21.9 kg

Min. Order:1 Piece

The 89424-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 89424-M bearing is a Axial cylindrical roller bearings, double row, single direction with an inner diameter of 120 mm , an outer diameter of 250 mm, a width of 78 mm. It typically uses PN (ABEC-1) grade precision tolerances and GCr15SiMn rings, GCr15SiMn rolling mlement. Its dynamic axial rated load is approximately 1157820 N, its static axial rated load is approximately 3999516 N. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

120 mm

Outside Diameter:

250 mm

Thickness:

78 mm

Weight:

21.9 KG

Dynamic load Capacity, axial:

1157820 N

Static load Capacity, axial:

3999516 N

Fatigue Load Limit, Axial:

367298 N

Reference speed (Grease rpm):

572

Limiting speed (Oil rpm):

1511

Specifications:

Structure:

Cylindrical Roller Thrust Bearings

Number of Rows:

Two

Precision Rating:

PN (ABEC-1)

Bearing Material:

GCr15SiMn

Cage Type:

M = Brass Cage

Rolling Mlement Material:

GCr15SiMn

Bore Type:

Cylindrical bore

Operating Temperature:

-20 to 120 °C

System of Measurement:

Metric

Series:

894 series (894..-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

89424-M bearings ( 120 mm x 250 mm x 78 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	89424-M
Bearing Type	Axial cylindrical roller bearings, double row, single direction
Series	894 series (894..-M)
Cage	M = Brass Cage
Accuracy class	PN (ABEC-1)
Rows NO.	Two
Axial cylindrical roller and cage assemblies	K89424-M
Housing locating washer	GS89424
Shaft locating washer	WS89424
Weight [lb]	48.2807
C_a Axial Dynamic [lbf]	260277
C_0a Axial static [lbf]	899091
C_ua Axial Fatigue [lbf]	82568
n_B Speed ratings (grease) [rpm]	572
n_G Speed ratings (oil) [rpm]	1511
d φ Inside [inch]	4.7244
D Φ Outside [inch]	9.8425
T Thickness [inch]	3.0709
D₁ [inch]	4.8425
d₁ [inch]	9.8425
r(min.) [inch]	0.1575

The 89424-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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89424-M Axial Cylindrical Roller Bearings, Double Row, Single Direction, Brass Cage

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