Original catalogue drawing - Timken TRB Catalog, page 366
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
323.85
12.75
D
Outside diameter
422.275
16.625
B
Inner-ring / bearing width
63.5
2.5
T
Overall assembly width
58.738
2.3125
C
Cup / outer-ring width
44.45
1.75
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)
323.850
Bore d (in)
12.7500
Outside dia. D (mm)
422.275
Outside dia. D (in)
16.6250
Width B (mm)
63.500
Overall width T (mm)
58.738
Overall width T (in)
2.3125
Cup width C (mm)
44.450
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
168000
Basic static load rating Cor (lbs)
352000
Basic dynamic load rating Cr (N)
748000
Basic static load rating C0r (N)
1570000
Dynamic rating C1 (N, ISO)
748000
Dynamic rating C1 (lbf, ISO)
168000
Radial rating C90 (N)
194000
Radial rating C90 (lbf)
43600
Thrust rating Ca90 (N)
129000
Thrust rating Ca90 (lbf)
29000
Static rating C0 (N)
1570000
Static rating C0 (lbf)
352000
Factor e
0.39
Factor Y
1.55
Factor K
1.51
Geometry factor G1
1926.3
Geometry factor G2
352.6
Geometry factor Cg
0.1679
Effective load centre a (mm)
15.0
Weight
Weight (kg)
18.42
Cup weight (kg)
5.75
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.3
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
341.8
Shaft shoulder db (mm)
343.0
Housing shoulder Da (mm)
409.0
Housing shoulder Db (mm)
400.0
Cage projection Aa (mm)
5.0
Cage projection Ab (mm)
0.5
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
187,000
102
3,386
6
124,667
392
13,083
8
93,500
1,024
34,133
10
74,800
2,154
71,814
15
49,867
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 748,000 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.366 (dimensions) / p.193 (cone) / p.193 (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.
