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
444.5
17.5
D
Outside diameter
635
25
B
Inner-ring / bearing width
120.65
4.75
T
Overall assembly width
120.65
4.75
C
Cup / outer-ring width
95.25
3.75
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)
444.500
Bore d (in)
17.5000
Outside dia. D (mm)
635.000
Outside dia. D (in)
25.0000
Width B (mm)
120.650
Overall width T (mm)
120.650
Overall width T (in)
4.7500
Cup width C (mm)
95.250
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
736000
Basic static load rating Cor (lbs)
1450000
Basic dynamic load rating Cr (N)
3280000
Basic static load rating C0r (N)
6430000
Dynamic rating C1 (N, ISO)
3280000
Dynamic rating C1 (lbf, ISO)
736000
Radial rating C90 (N)
849000
Radial rating C90 (lbf)
191000
Thrust rating Ca90 (N)
484000
Thrust rating Ca90 (lbf)
109000
Static rating C0 (N)
6430000
Static rating C0 (lbf)
1450000
Factor e
0.33
Factor Y
1.80
Factor K
1.76
Geometry factor G1
6865.6
Geometry factor G2
481.9
Geometry factor Cg
0.2458
Effective load centre a (mm)
-8.1
Weight
Weight (kg)
123.33
Cup weight (kg)
36.14
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
6.4
Housing fillet r max (mm)
6.4
Shaft shoulder da (mm)
472.0
Shaft shoulder db (mm)
481.0
Housing shoulder Da (mm)
605.0
Housing shoulder Db (mm)
591.0
Cage projection Aa (mm)
9.8
Cage projection Ab (mm)
6.9
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
820,000
102
3,386
6
546,667
392
13,083
8
410,000
1,024
34,133
10
328,000
2,154
71,814
15
218,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 3,280,000 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.162 (cone) / p.162 (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.
