78225/78551 Bore 57.15 Mm, 78000 Series, Tapered Roller Bearings Single Row - TS Type Imperial

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78225/78551

Bore Diameter:57.15 mm

Outside Diameter:140.03 mm

Width:36.513 mm

Weight:2.57 kg

Min. Order:1 Piece

The 78225/78551 Imperial single-row tapered roller bearings are suitable for applications requiring combined loads and easy installation and maintenance. Classic applications include automotive wheel hubs and axles, industrial gearboxes, agricultural machinery, conveyor rollers, mining equipment, and machine tool spindles.

The 78225/78551 bearing is a Tapered Roller Bearings Single Row - TS type Imperial with an inner diameter of 57.15 mm , an outer diameter of 140.03 mm, a width of 36.513 mm. GCr15 / SAE 52100 / 20CrNiMoA rings, GCr15 / SAE 52100 rolling mlement. Its dynamic axial rated load is approximately 17503 N, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Interchange code: 78225 - 78551

Dimensions:

Inside Diameter:

57.15 mm

Outside Diameter:

140.03 mm

Thickness:

36.513 mm

Weight:

2.57 KG

Dynamic load Capacity, axial:

17503 N

Specifications:

Structure:

TS = Single-row (pressed steel and pin-type)

Number of Rows:

Single row

Bearing Material:

GCr15 / SAE 52100 / 20CrNiMoA

Cage Type:

Sheet metal

Rolling Mlement Material:

GCr15 / SAE 52100

Operating Temperature:

-30 to 110 °C

System of Measurement:

Inch

Series:

78000

Rolling Element:

tapered 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

78225/78551 bearings ( 57.15 mm x 140.03 mm x 36.513 mm) have the advantages of Simultaneously withstands combined loads (radial and axial loads) and is detachable for installation, and are therefore widely used in the Automotive wheel hubs, axles, transmissions, industrial gearboxes, and machine tool spindles.

Part Number	78225/78551
Type	TS = Single-row (pressed steel and pin-type)
Manufacturer Part Code	78225-78551
Reference From	TIMKEN 78225/78551
Inner ring (cone)	78225
Outer ring (cup)	78551
Series	78000
Bearing Type	Tapered Roller Bearings Single Row - TS type Imperial
Units	Inch
Rows NO.	Single row
Cage Material	Sheet metal
Temperature - T(min) [°C]	-30
Temperature - T(max) [°C]	110
C₁ Dynamic Radial [lbf]	45600
C_a90 Dynamic Axial [lbf]	17503
C₉₀ Dynamic Radial [lbf]	11820
C₀ Static Radial [lbf]	43408
Dimensions
d φ Inside [inch]	2.25
D Φ Outside [inch]	5.513
T thickness [inch]	1.4375
B Cone Width [inch]	1.3085
C Cup Width [inch]	0.926
a Effective center [inch]	0.31
r Fillet Radius (Housing) [inch]	0.09
R Fillet Radius (Shaft) [inch]	0.14
A_b [inch]	0.2
A_a [inch]	0.24
d_a Dia.(Shaft) [inch]	3.03
d_b Dia.(Shaft) [inch]	3.27
D_a Dia.(Housing) [inch]	5.22
D_b Dia.(Housing) [inch]	4.61
Coefficient
e	0.87
Y	0.69
K	0.67
G₁ Geometry (Roller-Raceway)	62.6
G₂ Geometry (Rib-Roller End)	19.1
C_g Geometry	0.0884

The 78225/78551 Imperial single-row tapered roller bearings mainly consist of an outer ring, inner ring, tapered rollers, and a cage. The outer and inner ring assemblies are separable for easy installation and adjustment. The rollers make line contact with the raceways. The cage is typically made of stamped steel or brass.

Imperial single-row tapered roller bearings can simultaneously withstand radial and unidirectional axial loads, exhibiting high load-bearing capacity and rigidity. Their separable structure facilitates clearance adjustment and preload control, resulting in a high limiting speed. They conform to imperial standard dimensions and offer excellent interchangeability.

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78225/78551 Bore 57.15 Mm, 78000 Series, Tapered Roller Bearings Single Row - TS Type Imperial

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