Original catalogue drawing - Timken TRB Catalog, page 600
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
514.35
20.25
D
Outside diameter
736.6
29
T
Overall assembly width
186.502
7.3426
C
Cup / outer-ring width
114.3
4.5
r
Chamfer (min)
1.5
0.0591
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)
514.350
Bore d (in)
20.2500
Outside dia. D (mm)
736.600
Outside dia. D (in)
29.0000
Overall width T (mm)
186.502
Overall width T (in)
7.3426
Cup width C (mm)
114.300
Cup width C (in)
4.5000
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
778000
Basic dynamic load rating Cr (N)
3460000
Dynamic rating C1 (N, ISO)
3460000
Dynamic rating C1 (lbf, ISO)
778000
Radial rating C90 (N)
516000
Radial rating C90 (lbf)
116000
Thrust rating Ca90 (N)
418000
Thrust rating Ca90 (lbf)
94000
Factor e
0.47
Factor Y1
1.42
Factor Y2
2.12
Factor K
1.23
Geometry factor G1
4901.2
Geometry factor G2
606.3
Geometry factor Cg
0.2429
Weight
Weight (kg)
220.08
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
6.4
Housing fillet r max (mm)
1.5
Shaft shoulder db (mm)
555.0
Housing shoulder Da (mm)
684.0
Pin dimension Ka (mm)
25.40
Pin dimension Kb (mm)
15.87
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
865,000
102
3,386
6
576,667
392
13,083
8
432,500
1,024
34,133
10
346,000
2,154
71,814
15
230,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 3,460,000 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.600 (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.
