Original catalogue drawing - Timken TRB Catalog, page 656
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
114.3
4.5
D
Outside diameter
228.6
9
T
Overall assembly width
115.888
4.5625
C
Cup / outer-ring width
84.138
3.3125
r
Chamfer (min)
2.3
0.0906
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)
114.300
Bore d (in)
4.5000
Outside dia. D (mm)
228.600
Outside dia. D (in)
9.0000
Overall width T (mm)
115.888
Overall width T (in)
4.5625
Cup width C (mm)
84.138
Cup width C (in)
3.3125
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
147000
Basic dynamic load rating Cr (N)
655000
Dynamic rating C1 (N, ISO)
655000
Dynamic rating C1 (lbf, ISO)
147000
Radial rating C90 (N)
97500
Radial rating C90 (lbf)
21900
Thrust rating Ca90 (N)
123000
Thrust rating Ca90 (lbf)
27600
Factor e
0.74
Factor Y1
0.92
Factor Y2
1.36
Factor K
0.79
Weight
Weight (kg)
19.81
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
2.3
Shaft shoulder db (mm)
140.0
Housing shoulder Da (mm)
213.0
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
163,750
102
3,386
6
109,167
392
13,083
8
81,875
1,024
34,133
10
65,500
2,154
71,814
15
43,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 655,000 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.656 (dimensions)
Series type
TNA
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.
