All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TSF (Tapered Single with Flange) > Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial > Part Number 15578 - 15520-B  

Part Number 15578 - 15520-B, Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial

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Like the TS bearing design, the TSF design consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft. TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings.




Specifications  · Dimensions  · Abutment and Fillet Dimensions  · Basic Load Ratings  · Factors

Specifications

Series
15500

Cone Part Number
15578

Cup Part Number
15520-B

Design Unit
Inch

Cage Material
Stamped Steel

Related Assembly Number(s)
15578-90023


Dimensions

d - Bore
1 in
25.40 mm

D - Cup Outer Diameter
2.2500 in
57.150 mm

D1 - Flange Outer Diameter
2.4022 in
61.016 mm

B - Cone Width
0.6875 in
17.463 mm

C - Cup Width
0.5313 in
13.495 mm

C1 - Cup Flange Width
0.1563 in
3.970 mm

T1 - Bearing Width to Flange
0.3125 in
7.938 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.050 in
1.300 mm

r - Cup Backface "To Clear" Radius2
0.06 in
1.5 mm

da - Cone Frontface Backing Diameter
1.2 in
30.5 mm

db - Cone Backface Backing Diameter
1.28 in
32.5 mm

Da - Cup Frontface Backing Diameter
2.40 in
59.94 mm

Ab - Cage-Cone Frontface Clearance
0.1 in
2.5 mm

Aa - Cage-Cone Backface Clearance
0 in
0 mm

a - Effective Center Location3
-0.2 in
-5.1 mm
1 These maximum fillet radii will be cleared by the bearing corners.
2 These maximum fillet radii will be cleared by the bearing corners.
3 Negative value indicates effective center inside cone backface.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
3180 lbf
14100 N

C1 - Dynamic Radial Rating (1 million revolutions)2
12300 lbf
54500 N

C0 - Static Radial Rating
11300 lbf
50100 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
1880 lbf
8380 N
1 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
2 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.


Factors

K - Factor1
1.69

e - ISO Factor2
0.35

Y - ISO Factor3
1.73

G1 - Heat Generation Factor (Roller-Raceway)
12.7

G2 - Heat Generation Factor (Rib-Roller End)
10.3

Cg - Geometry Factor4
0.0577
1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
4 Geometry constant for Lubrication Life Adjustment Factor a3l.


 MORE IMAGES 

·  Timken_TRB_1ROWASSY_TSF_32312BM-90KM2-S

·  Timken_TRB_1ROWASSY_TSF_32312BM-90KM2-T



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