Original catalogue drawing - Timken TRB Catalog, page 352
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
247.65
9.75
D
Outside diameter
406.4
16
B
Inner-ring / bearing width
117.475
4.625
T
Overall assembly width
115.887
4.5625
C
Cup / outer-ring width
93.662
3.6875
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)
247.650
Bore d (in)
9.7500
Outside dia. D (mm)
406.400
Outside dia. D (in)
16.0000
Width B (mm)
117.475
Overall width T (mm)
115.887
Overall width T (in)
4.5625
Cup width C (mm)
93.662
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
554000
Basic static load rating Cor (lbs)
846000
Basic dynamic load rating Cr (N)
2470000
Basic static load rating C0r (N)
3770000
Dynamic rating C1 (N, ISO)
2470000
Dynamic rating C1 (lbf, ISO)
554000
Radial rating C90 (N)
639000
Radial rating C90 (lbf)
144000
Thrust rating Ca90 (N)
364000
Thrust rating Ca90 (lbf)
81800
Static rating C0 (N)
3770000
Static rating C0 (lbf)
846000
Factor e
0.33
Factor Y
1.80
Factor K
1.76
Geometry factor G1
2373.9
Geometry factor G2
173.3
Geometry factor Cg
0.1746
Effective load centre a (mm)
-28.7
Weight
Weight (kg)
60.55
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
6.4
Housing fillet r max (mm)
6.4
Shaft shoulder da (mm)
278.0
Shaft shoulder db (mm)
288.0
Housing shoulder Da (mm)
383.0
Housing shoulder Db (mm)
366.0
Cage projection Aa (mm)
8.9
Cage projection Ab (mm)
4.1
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
617,500
102
3,386
6
411,667
392
13,083
8
308,750
1,024
34,133
10
247,000
2,154
71,814
15
164,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 2,470,000 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.352 (dimensions)
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.
