Original catalogue drawing - Timken TRB Catalog, page 430
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
280
11.0236
D
Outside diameter
420
16.5354
B
Inner-ring / bearing width
87
3.4252
T
Overall assembly width
87
3.4252
C
Cup / outer-ring width
65
2.5591
r
Chamfer (min)
4
0.1575
Notes
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)
280.000
Bore d (in)
11.0236
Outside dia. D (mm)
420.000
Outside dia. D (in)
16.5354
Width B (mm)
87.000
Overall width T (mm)
87.000
Overall width T (in)
3.4252
Cup width C (mm)
65.000
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
309000
Basic static load rating Cor (lbs)
590000
Basic dynamic load rating Cr (N)
1380000
Basic static load rating C0r (N)
2620000
Dynamic rating C1 (N, ISO)
1380000
Dynamic rating C1 (lbf, ISO)
309000
Radial rating C90 (N)
357000
Radial rating C90 (lbf)
80200
Thrust rating Ca90 (N)
280000
Thrust rating Ca90 (lbf)
63000
Static rating C0 (N)
2620000
Static rating C0 (lbf)
590000
Factor e
0.46
Factor Y
1.31
Factor K
1.27
Geometry factor G1
1981.1
Geometry factor G2
175.3
Geometry factor Cg
0.1812
Effective load centre a (mm)
3.8
Weight
Weight (kg)
40.3
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
5.0
Housing fillet r max (mm)
4.0
Shaft shoulder da (mm)
302.0
Shaft shoulder db (mm)
314.0
Housing shoulder Da (mm)
402.0
Housing shoulder Db (mm)
388.1
Cage projection Aa (mm)
11.3
Cage projection Ab (mm)
4.1
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
345,000
102
3,386
6
230,000
392
13,083
8
172,500
1,024
34,133
10
138,000
2,154
71,814
15
92,000
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,380,000 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.430 (dimensions)
Series type
TS
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.
