Original catalogue drawing - Timken TRB Catalog, page 378
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
441.325
17.375
D
Outside diameter
660.4
26
B
Inner-ring / bearing width
85.725
3.375
T
Overall assembly width
91.28
3.5937
C
Cup / outer-ring width
62.705
2.4687
r
Chamfer (min)
6.4
0.252
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)
441.325
Bore d (in)
17.3750
Outside dia. D (mm)
660.400
Outside dia. D (in)
26.0000
Width B (mm)
85.725
Overall width T (mm)
91.280
Overall width T (in)
3.5937
Cup width C (mm)
62.705
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
396000
Basic static load rating Cor (lbs)
816000
Basic dynamic load rating Cr (N)
1760000
Basic static load rating C0r (N)
3630000
Dynamic rating C1 (N, ISO)
1760000
Dynamic rating C1 (lbf, ISO)
396000
Radial rating C90 (N)
457000
Radial rating C90 (lbf)
103000
Thrust rating Ca90 (N)
292000
Thrust rating Ca90 (lbf)
65700
Static rating C0 (N)
3630000
Static rating C0 (lbf)
816000
Factor e
0.37
Factor Y
1.60
Factor K
1.56
Geometry factor G1
4809.1
Geometry factor G2
573.4
Geometry factor Cg
0.2247
Effective load centre a (mm)
16.8
Weight
Weight (kg)
99.85
Cup weight (kg)
27.77
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
10.5
Housing fillet r max (mm)
6.4
Shaft shoulder da (mm)
477.0
Shaft shoulder db (mm)
491.0
Housing shoulder Da (mm)
618.0
Housing shoulder Db (mm)
614.9
Cage projection Aa (mm)
14.2
Cage projection Ab (mm)
7.8
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
440,000
102
3,386
6
293,333
392
13,083
8
220,000
1,024
34,133
10
176,000
2,154
71,814
15
117,333
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,760,000 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.378 (dimensions) / p.206 (cone) / p.206 (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.
