Original catalogue drawing - Timken TRB Catalog, page 272
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
76.2
3
D
Outside diameter
180.975
7.125
B
Inner-ring / bearing width
53.183
2.0938
T
Overall assembly width
53.975
2.125
C
Cup / outer-ring width
35.72
1.4063
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)
76.200
Bore d (in)
3.0000
Outside dia. D (mm)
180.975
Outside dia. D (in)
7.1250
Width B (mm)
53.183
Overall width T (mm)
53.975
Overall width T (in)
2.1250
Cup width C (mm)
35.720
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
101000
Basic static load rating Cor (lbs)
103000
Basic dynamic load rating Cr (N)
448000
Basic static load rating C0r (N)
458000
Dynamic rating C1 (N, ISO)
448000
Dynamic rating C1 (lbf, ISO)
101000
Radial rating C90 (N)
116000
Radial rating C90 (lbf)
26100
Thrust rating Ca90 (N)
146000
Thrust rating Ca90 (lbf)
32700
Static rating C0 (N)
458000
Static rating C0 (lbf)
103000
Factor e
0.73
Factor Y
0.82
Factor K
0.80
Geometry factor G1
147.0
Geometry factor G2
20.7
Geometry factor Cg
0.1123
Effective load centre a (mm)
0.5
Weight
Weight (kg)
6.55
Cone weight (kg)
4.39
Cup weight (kg)
2.16
Total weight (kg)
6.55
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
100.1
Shaft shoulder db (mm)
110.0
Housing shoulder Da (mm)
170.0
Housing shoulder Db (mm)
152.0
Cage projection Aa (mm)
9.5
Cage projection Ab (mm)
2.8
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
112,000
102
3,386
6
74,667
392
13,083
8
56,000
1,024
34,133
10
44,800
2,154
71,814
15
29,867
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 448,000 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.272 (dimensions) / p.221 (cone) / p.221 (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.
