Original catalogue drawing - Timken TRB Catalog, page 730
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
80
3.1496
D
Outside diameter
125
4.9213
T
Overall assembly width
66
2.5984
C
Cup / outer-ring width
51.5
2.0276
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)
80.000
Bore d (in)
3.1496
Outside dia. D (mm)
125.000
Outside dia. D (in)
4.9213
Overall width T (mm)
66.000
Overall width T (in)
2.5984
Cup width C (mm)
51.500
Cup width C (in)
2.0276
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
77000
Basic dynamic load rating Cr (N)
342000
Dynamic rating C1 (N, ISO)
342000
Dynamic rating C1 (lbf, ISO)
77000
Radial rating C90 (N)
51000
Radial rating C90 (lbf)
11500
Thrust rating Ca90 (N)
36900
Thrust rating Ca90 (lbf)
8300
Factor e
0.42
Factor Y1
1.60
Factor Y2
2.38
Factor K
1.38
Weight
Weight (kg)
2.72
Mounting dimensions (fillets / shoulders)
Shaft shoulder db (mm)
91.0
Housing shoulder Da (mm)
120.0
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
85,500
102
3,386
6
57,000
392
13,083
8
42,750
1,024
34,133
10
34,200
2,154
71,814
15
22,800
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 342,000 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.730 (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.
