NP528245 NP891538 Timken Tapered Roller Bearing Cone&Cup Timken JP7049 JP7010 

This is the most basic and most widely used type of tapered roller bearing. It 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.
Unit of Measure 

Specifications

Series

JP7000

Cone Part Number

JP7049

Cup Part Number

JP7010

Design Unit

Metric

Cage Material

Stamped Steel

Related Assembly Number(s)

JP7049-90BA1JP7049-90CB2

Dimensions

d - Bore

70 mm2.7559 in

D - Cup Outer Diameter

110 mm4.3307 in

B - Cone Width

20.000 mm0.7874 in

C - Cup Width

15.500 mm0.6102 in

T - Bearing Width

21.000 mm0.8268 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius12.030 mm0.08 in
r - Cup Backface "To Clear" Radius22.03 mm0.08 in

da - Cone Frontface Backing Diameter

76 mm2.99 in

db - Cone Backface Backing Diameter

80 mm3.15 in

Da - Cup Frontface Backing Diameter

105.90 mm4.17 in

Db - Cup Backface Backing Diameter

101.09 mm3.98 in

Ab - Cage-Cone Frontface Clearance

3.6 mm0.14 in

Aa - Cage-Cone Backface Clearance

0.8 mm0.03 in
a - Effective Center Location32.5 mm0.1 in

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)423700 N5340 lbf
C1 - Dynamic Radial Rating (1 million revolutions)591600 N20600 lbf

C0 - Static Radial Rating

112000 N25200 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)618700 N4210 lbf

Factors

K - Factor71.27
e - ISO Factor80.46
Y - ISO Factor91.3

G1 - Heat Generation Factor (Roller-Raceway)

51.1

G2 - Heat Generation Factor (Rib-Roller End)

30.9
Cg - Geometry Factor100.0995
  • 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.