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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.
Unit of Measure

Specifications

Series

 N/A LM722900

Cone Part Number

 N/A JLM722948

Cup Part Number

 N/A JLM722912-B

Design Unit

 N/A Metric

Cage Material

 N/A Stamped Steel

Related Assembly Number(s)

 N/A JLM722948-90B01

Dimensions

d - Bore

 N/A 115.000 mm4.5276 in

D - Cup Outer Diameter

 N/A 165 mm6.4961 in

D1 - Flange Outer Diameter

 N/A 172.000 mm6.7717 in

B - Cone Width

 N/A 27.000 mm1.0630 in

C - Cup Width

 N/A 21.000 mm0.8268 in

C1 - Cup Flange Width

 N/A 5.500 mm0.2165 in

T1 - Bearing Width to Flange

 N/A 12.500 mm4.921 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 3.300 mm0.13 in
r - Cup Backface "To Clear" Radius2 N/A 3 mm0.12 in

da - Cone Frontface Backing Diameter

 N/A 121 mm4.76 in

db - Cone Backface Backing Diameter

 N/A 127 mm5 in

Da - Cup Frontface Backing Diameter

 N/A 160.02 mm6.34 in

Ab - Cage-Cone Frontface Clearance

 N/A 3 mm0.12 in

Aa - Cage-Cone Backface Clearance

 N/A 1.8 mm0.07 in
a - Effective Center Location3 N/A 5.6 mm0.22 in

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 41400 N9310 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 160000 N35900 lbf

C0 - Static Radial Rating

 N/A 245000 N55100 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 32500 N7310 lbf

Factors

K - Factor7 N/A 1.27
e - ISO Factor8 N/A 0.46
Y - ISO Factor9 N/A 1.31

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 161

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 57.2
Cg - Geometry Factor10 N/A 0.145
  • 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.
  • 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 5 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 6 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.
  • 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 10 Geometry constant for Lubrication Life Adjustment Factor a3l.
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