Original catalogue drawing - Timken TRB Catalog, page 268
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
133.35
5.25
B
Inner-ring / bearing width
33.338
1.3125
T
Overall assembly width
79.375
3.125
C
Cup / outer-ring width
26.195
1.0313
r
Chamfer (min)
0.8
0.0315
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)
133.350
Outside dia. D (in)
5.2500
Width B (mm)
33.338
Overall width T (mm)
79.375
Overall width T (in)
1.3125
Cup width C (mm)
26.195
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
48100
Basic static load rating Cor (lbs)
58900
Basic dynamic load rating Cr (N)
214000
Basic static load rating C0r (N)
262000
Dynamic rating C1 (N, ISO)
214000
Dynamic rating C1 (lbf, ISO)
48100
Radial rating C90 (N)
55500
Radial rating C90 (lbf)
12500
Thrust rating Ca90 (N)
38400
Thrust rating Ca90 (lbf)
8640
Static rating C0 (N)
262000
Static rating C0 (lbf)
58900
Factor e
0.40
Factor Y
1.48
Factor K
1.44
Geometry factor G1
119.4
Geometry factor G2
29.2
Geometry factor Cg
0.1273
Effective load centre a (mm)
-4.3
Weight
Weight (kg)
1.92
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
0.8
Shaft shoulder da (mm)
85.0
Shaft shoulder db (mm)
91.0
Housing shoulder Da (mm)
128.0
Housing shoulder Db (mm)
121.0
Cage projection Aa (mm)
2.3
Cage projection Ab (mm)
2.4
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
53,500
102
3,386
6
35,667
392
13,083
8
26,750
1,024
34,133
10
21,400
2,154
71,814
15
14,267
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 214,000 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.268 (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.
