Original catalogue drawing - Timken TRB Catalog, page 566
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
166.688
6.5625
D
Outside diameter
225.425
8.875
T
Overall assembly width
85.725
3.375
C
Cup / outer-ring width
69.85
2.75
r
Chamfer (min)
0.8
0.0315
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)
166.688
Bore d (in)
6.5625
Outside dia. D (mm)
225.425
Outside dia. D (in)
8.8750
Overall width T (mm)
85.725
Overall width T (in)
3.3750
Cup width C (mm)
69.850
Cup width C (in)
2.7500
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
119000
Basic dynamic load rating Cr (N)
528000
Dynamic rating C1 (N, ISO)
528000
Dynamic rating C1 (lbf, ISO)
119000
Radial rating C90 (N)
78600
Radial rating C90 (lbf)
17700
Thrust rating Ca90 (N)
51600
Thrust rating Ca90 (lbf)
11600
Factor e
0.38
Factor Y1
1.76
Factor Y2
2.62
Factor K
1.52
Geometry factor G1
572.0
Geometry factor G2
174.7
Geometry factor Cg
0.1432
Weight
Weight (kg)
9.28
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
0.8
Shaft shoulder db (mm)
182.0
Housing shoulder Da (mm)
218.0
Pin dimension Ka (mm)
15.88
Pin dimension Kb (mm)
5.56
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
132,000
102
3,386
6
88,000
392
13,083
8
66,000
1,024
34,133
10
52,800
2,154
71,814
15
35,200
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 528,000 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.566 (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.
