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
380
14.9606
B
Inner-ring / bearing width
63.5
2.5
T
Overall assembly width
63.5
2.5
C
Cup / outer-ring width
48
1.8898
r
Chamfer (min)
2.5
0.0984
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)
380.000
Outside dia. D (in)
14.9606
Width B (mm)
63.500
Overall width T (mm)
63.500
Overall width T (in)
2.5000
Cup width C (mm)
48.000
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
191000
Basic static load rating Cor (lbs)
401000
Basic dynamic load rating Cr (N)
850000
Basic static load rating C0r (N)
1780000
Dynamic rating C1 (N, ISO)
850000
Dynamic rating C1 (lbf, ISO)
191000
Radial rating C90 (N)
220000
Radial rating C90 (lbf)
49500
Thrust rating Ca90 (N)
163000
Thrust rating Ca90 (lbf)
36700
Static rating C0 (N)
1780000
Static rating C0 (lbf)
401000
Factor e
0.43
Factor Y
1.39
Factor K
1.35
Geometry factor G1
1696.5
Geometry factor G2
236.2
Geometry factor Cg
0.1680
Effective load centre a (mm)
11.4
Weight
Weight (kg)
19.81
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.0
Housing fillet r max (mm)
2.5
Shaft shoulder da (mm)
296.0
Shaft shoulder db (mm)
300.0
Housing shoulder Da (mm)
368.0
Housing shoulder Db (mm)
356.0
Cage projection Aa (mm)
7.3
Cage projection Ab (mm)
3.4
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
212,500
102
3,386
6
141,667
392
13,083
8
106,250
1,024
34,133
10
85,000
2,154
71,814
15
56,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 850,000 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.
