Original catalogue drawing - Timken TRB Catalog, page 126
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
33.337
1.3125
D
Outside diameter
76.2
3
B
Inner-ring / bearing width
28.575
1.125
T
Overall assembly width
29.37
1.1563
C
Cup / outer-ring width
23.02
0.9063
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)
33.337
Bore d (in)
1.3125
Outside dia. D (mm)
76.200
Outside dia. D (in)
3.0000
Width B (mm)
28.575
Overall width T (mm)
29.370
Overall width T (in)
1.1563
Cup width C (mm)
23.020
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
24800
Basic static load rating Cor (lbs)
26700
Basic dynamic load rating Cr (N)
110000
Basic static load rating C0r (N)
119000
Dynamic rating C1 (N, ISO)
110000
Dynamic rating C1 (lbf, ISO)
24800
Radial rating C90 (N)
28600
Radial rating C90 (lbf)
6440
Thrust rating Ca90 (N)
26800
Thrust rating Ca90 (lbf)
6020
Static rating C0 (N)
119000
Static rating C0 (lbf)
26700
Factor e
0.55
Factor Y
1.10
Factor K
1.07
Geometry factor G1
28.9
Geometry factor G2
9.9
Geometry factor Cg
0.0883
Effective load centre a (mm)
-5.6
Weight
Weight (kg)
0.66
Cup weight (kg)
0.25
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
0.8
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
44.5
Shaft shoulder db (mm)
46.5
Housing shoulder Da (mm)
73.0
Housing shoulder Db (mm)
62.0
Cage projection Aa (mm)
1.9
Cage projection Ab (mm)
1.4
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
27,500
102
3,386
6
18,333
392
13,083
8
13,750
1,024
34,133
10
11,000
2,154
71,814
15
7,333
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 110,000 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.126 (dimensions) / p.114 (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.
