Original catalogue drawing - Timken TRB Catalog, page 324
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
146.05
5.75
D
Outside diameter
304.8
12
B
Inner-ring / bearing width
61.912
2.4375
T
Overall assembly width
60.325
2.375
C
Cup / outer-ring width
41.275
1.625
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)
146.050
Bore d (in)
5.7500
Outside dia. D (mm)
304.800
Outside dia. D (in)
12.0000
Width B (mm)
61.912
Overall width T (mm)
60.325
Overall width T (in)
2.3750
Cup width C (mm)
41.275
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
174000
Basic static load rating Cor (lbs)
196000
Basic dynamic load rating Cr (N)
775000
Basic static load rating C0r (N)
871000
Dynamic rating C1 (N, ISO)
775000
Dynamic rating C1 (lbf, ISO)
174000
Radial rating C90 (N)
201000
Radial rating C90 (lbf)
45200
Thrust rating Ca90 (N)
114000
Thrust rating Ca90 (lbf)
25700
Static rating C0 (N)
871000
Static rating C0 (lbf)
196000
Factor e
0.33
Factor Y
1.80
Factor K
1.76
Geometry factor G1
431.4
Geometry factor G2
54.4
Geometry factor Cg
0.0974
Effective load centre a (mm)
-10.7
Weight
Weight (kg)
18.9
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.3
Housing fillet r max (mm)
6.4
Shaft shoulder da (mm)
172.0
Shaft shoulder db (mm)
167.0
Housing shoulder Da (mm)
272.0
Housing shoulder Db (mm)
270.0
Cage projection Aa (mm)
6.6
Cage projection Ab (mm)
3.5
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
193,750
102
3,386
6
129,167
392
13,083
8
96,875
1,024
34,133
10
77,500
2,154
71,814
15
51,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 775,000 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.324 (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.
