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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TSF (Tapered Single with Flange) > Tapered Roller Bearings - TSF (Tapered Single with Flange) Metric > Part Number JLM722948 - JLM722912-B  
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Part Number JLM722948 - JLM722912-B, Tapered Roller Bearings - TSF (Tapered Single with Flange) Metric


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.



Unit of Measure: Imperial Metric Both

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

Specifications

Series
LM722900

Cone Part Number
JLM722948

Cup Part Number
JLM722912-B

Design Unit
Metric

Cage Material
Stamped Steel

Related Assembly Number(s)
JLM722948-90B01


Dimensions

d - Bore
115 mm
4.5276 in

D - Cup Outer Diameter
165 mm
6.4961 in

D1 - Flange Outer Diameter
172.000 mm
6.7717 in

B - Cone Width
27.000 mm
1.0630 in

C - Cup Width
21.000 mm
0.8268 in

C1 - Cup Flange Width
5.500 mm
0.2165 in

T1 - Bearing Width to Flange
12.500 mm
4.921 in


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
3.300 mm
0.13 in

r - Cup Backface "To Clear" Radius2
3 mm
0.12 in

da - Cone Frontface Backing Diameter
121 mm
4.76 in

db - Cone Backface Backing Diameter
127 mm
5 in

Da - Cup Frontface Backing Diameter
160.02 mm
6.34 in

Ab - Cage-Cone Frontface Clearance
3 mm
0.12 in

Aa - Cage-Cone Backface Clearance
1.8 mm
0.07 in

a - Effective Center Location3
5.6 mm
0.22 in
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
41400 N
9310 lbf

C1 - Dynamic Radial Rating (1 million revolutions)2
160000 N
35900 lbf

C0 - Static Radial Rating
245000 N
55100 lbf

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
32500 N
7310 lbf
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
1.27

e - ISO Factor2
0.46

Y - ISO Factor3
1.31

G1 - Heat Generation Factor (Roller-Raceway)
161

G2 - Heat Generation Factor (Rib-Roller End)
57.2

Cg - Geometry Factor4
0.145
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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