Original catalogue drawing - Timken TRB Catalog, page 398
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
30
1.1811
D
Outside diameter
72
2.8346
B
Inner-ring / bearing width
27
1.063
T
Overall assembly width
28.75
1.1319
C
Cup / outer-ring width
23
0.9055
r
Chamfer (min)
1.5
0.0591
Notes
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)
30.000
Bore d (in)
1.1811
Outside dia. D (mm)
72.000
Outside dia. D (in)
2.8346
Width B (mm)
27.000
Overall width T (mm)
28.750
Overall width T (in)
1.1319
Cup width C (mm)
23.000
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
19700
Basic static load rating Cor (lbs)
20200
Basic dynamic load rating Cr (N)
87600
Basic static load rating C0r (N)
89800
Dynamic rating C1 (N, ISO)
87600
Dynamic rating C1 (lbf, ISO)
19700
Radial rating C90 (N)
22700
Radial rating C90 (lbf)
5110
Thrust rating Ca90 (N)
12300
Thrust rating Ca90 (lbf)
2750
Static rating C0 (N)
89800
Static rating C0 (lbf)
20200
Factor e
0.31
Factor Y
1.90
Factor K
1.85
Geometry factor G1
20.6
Geometry factor G2
8.6
Geometry factor Cg
0.0654
Effective load centre a (mm)
-10.7
Weight
Weight (kg)
0.56
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
1.5
Housing fillet r max (mm)
1.5
Shaft shoulder da (mm)
37.0
Shaft shoulder db (mm)
40.5
Housing shoulder Da (mm)
66.0
Housing shoulder Db (mm)
62.0
Cage projection Aa (mm)
2.9
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
21,900
102
3,386
6
14,600
392
13,083
8
10,950
1,024
34,133
10
8,760
2,154
71,814
15
5,840
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 87,600 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.398 (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.
