Original catalogue drawing - Timken TRB Catalog, page 512
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
14.989
0.5901
D
Outside diameter
34.988
1.3775
T
Overall assembly width
25.174
0.9911
C
Cup / outer-ring width
20.638
0.8125
r
Chamfer (min)
0.6
0.0236
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)
14.989
Bore d (in)
0.5901
Outside dia. D (mm)
34.988
Outside dia. D (in)
1.3775
Overall width T (mm)
25.174
Overall width T (in)
0.9911
Cup width C (mm)
20.638
Cup width C (in)
0.8125
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
5150
Basic dynamic load rating Cr (N)
22900
Dynamic rating C1 (N, ISO)
22900
Dynamic rating C1 (lbf, ISO)
5150
Radial rating C90 (N)
3410
Radial rating C90 (lbf)
767
Thrust rating Ca90 (N)
2640
Thrust rating Ca90 (lbf)
594
Factor e
0.45
Factor Y1
1.49
Factor Y2
2.22
Factor K
1.29
Geometry factor G1
2.3
Geometry factor G2
4.1
Geometry factor Cg
0.0355
Weight
Weight (kg)
0.11
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
0.8
Housing fillet r max (mm)
0.6
Shaft shoulder db (mm)
19.5
Housing shoulder Da (mm)
31.5
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
5,725
102
3,386
6
3,817
392
13,083
8
2,862
1,024
34,133
10
2,290
2,154
71,814
15
1,527
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 22,900 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.512 (dimensions)
Series type
TDO
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.
