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99600/99100


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.
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Unit of Measure                                                                       

Specifications

Series
99000
Cone Part Number
99600
Cup Part Number
99100
Design Units
Imperial
Bearing Weight
12.5 Kg27.5 lb
Cage Type
Stamped Steel

Dimensions

d - Bore
152.400 mm6.0000 in
D - Cup Outer Diameter
254.000 mm10.0000 in
B - Cone Width
66.675 mm2.6250 in
C - Cup Width
47.625 mm1.8750 in
T - Bearing Width
66.675 mm2.6250 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
7.110 mm0.280 in
r - Cup Backface "To Clear" Radius2
3.3 mm0.130 in
da - Cone Frontface Backing Diameter
169.67 mm7.5 in
db - Cone Backface Backing Diameter
181.1 mm7.13 in
Da - Cup Frontface Backing Diameter
238.30 mm9.38 in
Db - Cup Backface Backing Diameter
227.08 mm8.94 in
Ab - Cage-Cone Frontface Clearance
4.8 mm0.19 in
Aa - Cage-Cone Backface Clearance
8.6 mm0.34 in
a - Effective Center Location3
-12.2 mm-0.48 in

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4
38500 lbf171000 N
C1 - Dynamic Radial Rating (1 million revolutions)5
148000 lbf660000 N
C0 - Static Radial Rating
231000 lbf1030000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6
26800 lbf119000 N

Factors

K - Factor7
1.43
e - ISO Factor8
0.41
Y - ISO Factor9
1.47
G1 - Heat Generation Factor (Roller-Raceway)
556
G2 - Heat Generation Factor (Rib-Roller End)
66.7
Cg - Geometry Factor10
0.146

· 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.
 

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