Original catalogue drawing - Timken TRB Catalog, page 602
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
534.988
21.0625
D
Outside diameter
622.3
24.5
T
Overall assembly width
101.6
4
C
Cup / outer-ring width
73.025
2.875
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)
534.988
Bore d (in)
21.0625
Outside dia. D (mm)
622.300
Outside dia. D (in)
24.5000
Overall width T (mm)
101.600
Overall width T (in)
4.0000
Cup width C (mm)
73.025
Cup width C (in)
2.8750
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
261000
Basic dynamic load rating Cr (N)
1160000
Dynamic rating C1 (N, ISO)
1160000
Dynamic rating C1 (lbf, ISO)
261000
Radial rating C90 (N)
173000
Radial rating C90 (lbf)
38900
Thrust rating Ca90 (N)
109000
Thrust rating Ca90 (lbf)
24500
Factor e
0.37
Factor Y1
1.83
Factor Y2
2.73
Factor K
1.59
Geometry factor G1
4586.9
Geometry factor G2
1294.0
Geometry factor Cg
0.2160
Weight
Weight (kg)
44.63
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
1.5
Shaft shoulder db (mm)
552.0
Housing shoulder Da (mm)
609.0
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
290,000
102
3,386
6
193,333
392
13,083
8
145,000
1,024
34,133
10
116,000
2,154
71,814
15
77,333
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,160,000 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.602 (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.
