Original catalogue drawing - Timken TRB Catalog, page 644
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
384.175
15.125
D
Outside diameter
546.1
21.5
B
Inner-ring / bearing width
193.675
7.625
T
Overall assembly width
193.675
7.625
r
Chamfer (min)
6.4
0.252
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)
384.175
Bore d (in)
15.1250
Outside dia. D (mm)
546.100
Outside dia. D (in)
21.5000
Width B (mm)
193.675
Width B (in)
7.6250
Overall width T (mm)
193.675
Overall width T (in)
7.6250
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
963000
Basic dynamic load rating Cr (N)
4290000
Dynamic rating C1 (N, ISO)
4290000
Dynamic rating C1 (lbf, ISO)
963000
Radial rating C90 (N)
638000
Radial rating C90 (lbf)
143000
Thrust rating Ca90 (N)
363000
Thrust rating Ca90 (lbf)
81700
Factor e
0.33
Factor Y1
2.03
Factor Y2
3.02
Factor K
1.76
Geometry factor G1
4760.1
Geometry factor G2
301.5
Geometry factor Cg
0.2178
Weight
Weight (kg)
157.92
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.3
Housing fillet r max (mm)
6.4
Housing shoulder Db (mm)
507.0
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
1,072,500
102
3,386
6
715,000
392
13,083
8
536,250
1,024
34,133
10
429,000
2,154
71,814
15
286,000
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 4,290,000 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.644 (dimensions)
Series type
TDIT
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.
