Original catalogue drawing - Timken TRB Catalog, page 362
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
288.925
11.375
D
Outside diameter
406.4
16
B
Inner-ring / bearing width
77.788
3.0625
T
Overall assembly width
77.788
3.0625
C
Cup / outer-ring width
60.325
2.375
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)
288.925
Bore d (in)
11.3750
Outside dia. D (mm)
406.400
Outside dia. D (in)
16.0000
Width B (mm)
77.788
Overall width T (mm)
77.788
Overall width T (in)
3.0625
Cup width C (mm)
60.325
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
307000
Basic static load rating Cor (lbs)
567000
Basic dynamic load rating Cr (N)
1360000
Basic static load rating C0r (N)
2520000
Dynamic rating C1 (N, ISO)
1360000
Dynamic rating C1 (lbf, ISO)
307000
Radial rating C90 (N)
354000
Radial rating C90 (lbf)
79500
Thrust rating Ca90 (N)
205000
Thrust rating Ca90 (lbf)
46000
Static rating C0 (N)
2520000
Static rating C0 (lbf)
567000
Factor e
0.34
Factor Y
1.77
Factor K
1.73
Geometry factor G1
2301.3
Geometry factor G2
287.6
Geometry factor Cg
0.1722
Effective load centre a (mm)
-4.1
Weight
Weight (kg)
30.9
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
6.4
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
311.0
Shaft shoulder db (mm)
317.0
Housing shoulder Da (mm)
387.9
Housing shoulder Db (mm)
379.0
Cage projection Aa (mm)
5.8
Cage projection Ab (mm)
4.0
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
340,000
102
3,386
6
226,667
392
13,083
8
170,000
1,024
34,133
10
136,000
2,154
71,814
15
90,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,360,000 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.362 (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.
