Original catalogue drawing - Timken TRB Catalog, page 348
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
234.95
9.25
D
Outside diameter
314.325
12.375
B
Inner-ring / bearing width
53.975
2.125
T
Overall assembly width
49.212
1.9375
C
Cup / outer-ring width
36.512
1.4375
r
Chamfer (min)
3.3
0.1299
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)
234.950
Bore d (in)
9.2500
Outside dia. D (mm)
314.325
Outside dia. D (in)
12.3750
Width B (mm)
53.975
Overall width T (mm)
49.212
Overall width T (in)
1.9375
Cup width C (mm)
36.512
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
126000
Basic static load rating Cor (lbs)
213000
Basic dynamic load rating Cr (N)
560000
Basic static load rating C0r (N)
949000
Dynamic rating C1 (N, ISO)
560000
Dynamic rating C1 (lbf, ISO)
126000
Radial rating C90 (N)
145000
Radial rating C90 (lbf)
32600
Thrust rating Ca90 (N)
98800
Thrust rating Ca90 (lbf)
22200
Static rating C0 (N)
949000
Static rating C0 (lbf)
213000
Factor e
0.40
Factor Y
1.51
Factor K
1.47
Geometry factor G1
938.2
Geometry factor G2
175.8
Geometry factor Cg
0.1338
Effective load centre a (mm)
8.4
Weight
Weight (kg)
10.18
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
247.0
Shaft shoulder db (mm)
252.0
Housing shoulder Da (mm)
306.0
Housing shoulder Db (mm)
296.0
Cage projection Aa (mm)
4.2
Cage projection Ab (mm)
0.0
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
140,000
102
3,386
6
93,333
392
13,083
8
70,000
1,024
34,133
10
56,000
2,154
71,814
15
37,333
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 560,000 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.348 (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.
