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
355.6
14
B
Inner-ring / bearing width
50.8
2
T
Overall assembly width
50.8
2
C
Cup / outer-ring width
33.338
1.3125
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)
247.650
Bore d (in)
9.7500
Outside dia. D (mm)
355.600
Outside dia. D (in)
14.0000
Width B (mm)
50.800
Overall width T (mm)
50.800
Overall width T (in)
2.0000
Cup width C (mm)
33.338
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
144000
Basic static load rating Cor (lbs)
231000
Basic dynamic load rating Cr (N)
643000
Basic static load rating C0r (N)
1030000
Dynamic rating C1 (N, ISO)
643000
Dynamic rating C1 (lbf, ISO)
144000
Radial rating C90 (N)
167000
Radial rating C90 (lbf)
37500
Thrust rating Ca90 (N)
104000
Thrust rating Ca90 (lbf)
23300
Static rating C0 (N)
1030000
Static rating C0 (lbf)
231000
Factor e
0.36
Factor Y
1.65
Factor K
1.61
Geometry factor G1
1068.6
Geometry factor G2
171.6
Geometry factor Cg
0.1354
Effective load centre a (mm)
5.8
Weight
Weight (kg)
14.44
Cone weight (kg)
11.03
Cup weight (kg)
3.82
Total weight (kg)
14.85
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
6.4
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
264.0
Shaft shoulder db (mm)
274.0
Housing shoulder Da (mm)
337.0
Housing shoulder Db (mm)
334.0
Cage projection Aa (mm)
8.6
Cage projection Ab (mm)
3.3
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
160,750
102
3,386
6
107,167
392
13,083
8
80,375
1,024
34,133
10
64,300
2,154
71,814
15
42,867
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 643,000 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) / p.130 (cone) / p.130 (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.
