Original catalogue drawing - Timken TRB Catalog, page 426
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
140
5.5118
D
Outside diameter
300
11.811
B
Inner-ring / bearing width
70
2.7559
T
Overall assembly width
77
3.0315
C
Cup / outer-ring width
47
1.8504
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)
140.000
Bore d (in)
5.5118
Outside dia. D (mm)
300.000
Outside dia. D (in)
11.8110
Width B (mm)
70.000
Overall width T (mm)
77.000
Overall width T (in)
3.0315
Cup width C (mm)
47.000
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
176000
Basic static load rating Cor (lbs)
230000
Basic dynamic load rating Cr (N)
785000
Basic static load rating C0r (N)
1020000
Dynamic rating C1 (N, ISO)
785000
Dynamic rating C1 (lbf, ISO)
176000
Radial rating C90 (N)
203000
Radial rating C90 (lbf)
45700
Thrust rating Ca90 (N)
287000
Thrust rating Ca90 (lbf)
64600
Static rating C0 (N)
1020000
Static rating C0 (lbf)
230000
Factor e
0.83
Factor Y
0.73
Factor K
0.71
Geometry factor G1
424.5
Geometry factor G2
45.2
Geometry factor Cg
0.1290
Effective load centre a (mm)
16.5
Weight
Weight (kg)
22.85
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
5.0
Housing fillet r max (mm)
4.0
Shaft shoulder da (mm)
171.0
Shaft shoulder db (mm)
199.0
Housing shoulder Da (mm)
280.4
Housing shoulder Db (mm)
257.0
Cage projection Aa (mm)
16.5
Cage projection Ab (mm)
9.7
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
196,250
102
3,386
6
130,833
392
13,083
8
98,125
1,024
34,133
10
78,500
2,154
71,814
15
52,333
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 785,000 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.426 (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.
