Original catalogue drawing - Timken TRB Catalog, page 250
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
66.675
2.625
D
Outside diameter
135.755
5.3447
B
Inner-ring / bearing width
56.007
2.205
T
Overall assembly width
53.975
2.125
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)
66.675
Bore d (in)
2.6250
Outside dia. D (mm)
135.755
Outside dia. D (in)
5.3447
Width B (mm)
56.007
Overall width T (mm)
53.975
Overall width T (in)
2.1250
Cup width C (mm)
44.450
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
72300
Basic static load rating Cor (lbs)
90900
Basic dynamic load rating Cr (N)
321000
Basic static load rating C0r (N)
404000
Dynamic rating C1 (N, ISO)
321000
Dynamic rating C1 (lbf, ISO)
72300
Radial rating C90 (N)
83300
Radial rating C90 (lbf)
18700
Thrust rating Ca90 (N)
46300
Thrust rating Ca90 (lbf)
10400
Static rating C0 (N)
404000
Static rating C0 (lbf)
90900
Factor e
0.32
Factor Y
1.85
Factor K
1.80
Geometry factor G1
123.5
Geometry factor G2
22.4
Geometry factor Cg
0.0827
Effective load centre a (mm)
-19.3
Weight
Weight (kg)
3.55
Cone weight (kg)
2.17
Cup weight (kg)
1.37
Total weight (kg)
3.54
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
4.3
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
77.0
Shaft shoulder db (mm)
87.0
Housing shoulder Da (mm)
126.0
Housing shoulder Db (mm)
117.0
Cage projection Aa (mm)
4.0
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
80,250
102
3,386
6
53,500
392
13,083
8
40,125
1,024
34,133
10
32,100
2,154
71,814
15
21,400
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 321,000 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.250 (dimensions) / p.59 (cone) / p.59 (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.
