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
549.275
21.625
D
Outside diameter
692.15
27.25
T
Overall assembly width
174.625
6.875
C
Cup / outer-ring width
136.525
5.375
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)
549.275
Bore d (in)
21.6250
Outside dia. D (mm)
692.150
Outside dia. D (in)
27.2500
Overall width T (mm)
174.625
Overall width T (in)
6.8750
Cup width C (mm)
136.525
Cup width C (in)
5.3750
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
595000
Basic dynamic load rating Cr (N)
2650000
Dynamic rating C1 (N, ISO)
2650000
Dynamic rating C1 (lbf, ISO)
595000
Radial rating C90 (N)
394000
Radial rating C90 (lbf)
88500
Thrust rating Ca90 (N)
254000
Thrust rating Ca90 (lbf)
57000
Factor e
0.38
Factor Y1
1.79
Factor Y2
2.67
Factor K
1.55
Geometry factor G1
7261.6
Geometry factor G2
889.8
Geometry factor Cg
0.2567
Weight
Weight (kg)
142.05
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
6.4
Housing fillet r max (mm)
1.5
Shaft shoulder db (mm)
579.0
Housing shoulder Da (mm)
666.0
Pin dimension Ka (mm)
28.58
Pin dimension Kb (mm)
14.30
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
662,500
102
3,386
6
441,667
392
13,083
8
331,250
1,024
34,133
10
265,000
2,154
71,814
15
176,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 2,650,000 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.
