Original catalogue drawing - Timken TRB Catalog, page 100
Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.
Scale cross-section
Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own
dimensions for selection reference only - not a manufacturing or assembly drawing.
Dimension table (mm / inch)
Symbol
Dimension
mm
inch
d
Bore diameter
25.4
1
D
Outside diameter
72.625
2.8593
B
Inner-ring / bearing width
24.257
0.955
T
Overall assembly width
24.608
0.9688
C
Cup / outer-ring width
17.462
0.6875
r
Chamfer (min)
1.5
0.0591
Notes
Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.
Main dimensions
Bore d (mm)
25.400
Bore d (in)
1.0000
Outside dia. D (mm)
72.625
Outside dia. D (in)
2.8593
Width B (mm)
24.257
Overall width T (mm)
24.608
Overall width T (in)
0.9688
Cup width C (mm)
17.462
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
18600
Basic static load rating Cor (lbs)
14400
Basic dynamic load rating Cr (N)
82600
Basic static load rating C0r (N)
64100
Dynamic rating C1 (N, ISO)
82600
Dynamic rating C1 (lbf, ISO)
18600
Radial rating C90 (N)
21400
Radial rating C90 (lbf)
4820
Thrust rating Ca90 (N)
22100
Thrust rating Ca90 (lbf)
4960
Static rating C0 (N)
64100
Static rating C0 (lbf)
14400
Factor e
0.60
Factor Y
1.00
Factor K
0.97
Geometry factor G1
13.0
Geometry factor G2
5.8
Geometry factor Cg
0.0686
Effective load centre a (mm)
-4.1
Weight
Weight (kg)
0.5
Cone weight (kg)
0.32
Cup weight (kg)
0.18
Total weight (kg)
0.5
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
2.3
Housing fillet r max (mm)
1.5
Shaft shoulder da (mm)
36.5
Shaft shoulder db (mm)
41.0
Housing shoulder Da (mm)
68.0
Housing shoulder Db (mm)
61.0
Cage projection Aa (mm)
3.0
Cage projection Ab (mm)
2.3
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
20,650
102
3,386
6
13,767
392
13,083
8
10,325
1,024
34,133
10
8,260
2,154
71,814
15
5,507
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 82,600 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.
Source & traceability
Brand
Timken
Source catalogue
Timken Tapered Roller Bearing Catalog (2016)
Catalogue page
p.100 (dimensions) / p.89 (cone) / p.89 (cup)
Series type
TS
ISO dynamic rating C1, Timken C90 / Ca90, static rating C0, geometry factors and assembly weight.
Send us the quantity you need and we will come back with price and
lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.
