70tp129 Thrust Cylindrical Roller Bearing, Window-type Steel Cage

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70tp129

Bore Diameter:177.8 mm

Outside Diameter:254 mm

Width:50.8 mm

Weight:9.2 kg

Min. Order:1 Piece

The 70tp129 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 70tp129 bearing is a Thrust cylindrical roller bearing with an inner diameter of 177.8 mm , an outer diameter of 254 mm, a width of 50.8 mm. It typically uses PN (ABEC-1) grade precision tolerances and bearing steel rings, bearing steel rolling mlement. Its dynamic axial rated load is approximately 598801 N, its static axial rated load is approximately 2796084 N. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

177.8 mm

Outside Diameter:

254 mm

Thickness:

50.8 mm

Weight:

9.2 KG

Dynamic load Capacity, axial:

598801 N

Static load Capacity, axial:

2796084 N

Limiting speed (Oil rpm):

1123

Specifications:

Structure:

Cylindrical Roller Thrust Bearings

Number of Rows:

Two or Three

Precision Rating:

PN (ABEC-1)

Bearing Material:

bearing steel

Cage Type:

window-type steel cage

Rolling Mlement Material:

bearing steel

Bore Type:

Cylindrical bore

Operating Temperature:

-30 to 110 °C

System of Measurement:

Metric

Series:

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

70tp129 bearings ( 177.8 mm x 254 mm x 50.8 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	70tp129
Design type	TP: Two or three cylindrical rollers per cage pocket
Bearing Type	Thrust cylindrical roller bearing
Interchangeable	TIMKEN 70tp129
Manufacturer Part Code	70 TP 129
Series	TP
Cage	window-type steel cage
Units	Metric
Tolerance class	PN (ABEC-1)
C_0a Axial Static [lbf]	628559
C_a Axial Dynamic [lbf]	134610
n_G Speed ratings (oil) [rpm]	1123
d φ Inside [inch]	7.0000
D Φ Outside [inch]	10.0000
T Width [inch]	2.0000
T₁ Cage Position [inch]	0.5626
r Fillet Radius [inch]	0.1260
d₁ [inch]	7.0937
D₁ [inch]	9.9063
E (Max) Shoulder Diameter Housing [inch]	7.4370
H (Min) Shoulder Diameter Shaft [inch]	9.5630
Weight [lb]	20.2823

The 70tp129 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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70tp129 Thrust Cylindrical Roller Bearing, Window-type Steel Cage

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