9285/9220 - 99401 Timken Tapered Roller Bearing Cone&Cup Timken 9285 - 9220 USA

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

9200

Cone Part Number

9285

Cup Part Number

9220

Design Unit

Inch

Cage Material

Stamped Steel

Related Assembly Number(s)

9285-900109285-900279285-90029

Dimensions

d - Bore

3 in76.2 mm

D - Cup Outer Diameter

6-3/8 in161.925 mm

B - Cone Width

1.8125 in46.038 mm

C - Cup Width

1.2500 in31.750 mm

T - Bearing Width

1.9375 in49.213 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius10.14 in3.600 mm
r - Cup Backface "To Clear" Radius20.130 in3.30 mm

da - Cone Frontface Backing Diameter

3.5 in89 mm

db - Cone Backface Backing Diameter

4.37 in111 mm

Da - Cup Frontface Backing Diameter

6.04 in153.20 mm

Db - Cup Backface Backing Diameter

5.43 in137.92 mm

Ab - Cage-Cone Frontface Clearance

0.18 in4.6 mm

Aa - Cage-Cone Backface Clearance

0.33 in8.4 mm
a - Effective Center Location30 in0 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)420600 lbf91400 N
C1 - Dynamic Radial Rating (1 million revolutions)579300 lbf353000 N

C0 - Static Radial Rating

74200 lbf330000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)624900 lbf111000 N

Factors

K - Factor70.82
e - ISO Factor80.71
Y - ISO Factor90.85

G1 - Heat Generation Factor (Roller-Raceway)

102.5

G2 - Heat Generation Factor (Rib-Roller End)

16.1
Cg - Geometry Factor100.0984
  • 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.