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
220
8.6614
D
Outside diameter
300
11.811
B
Inner-ring / bearing width
51
2.0079
T
Overall assembly width
51
2.0079
C
Cup / outer-ring width
39
1.5354
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)
220.000
Bore d (in)
8.6614
Outside dia. D (mm)
300.000
Outside dia. D (in)
11.8110
Width B (mm)
51.000
Overall width T (mm)
51.000
Overall width T (in)
2.0079
Cup width C (mm)
39.000
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
126000
Basic static load rating Cor (lbs)
245000
Basic dynamic load rating Cr (N)
561000
Basic static load rating C0r (N)
1090000
Dynamic rating C1 (N, ISO)
561000
Dynamic rating C1 (lbf, ISO)
126000
Radial rating C90 (N)
145000
Radial rating C90 (lbf)
32700
Thrust rating Ca90 (N)
106000
Thrust rating Ca90 (lbf)
23800
Static rating C0 (N)
1090000
Static rating C0 (lbf)
245000
Factor e
0.43
Factor Y
1.41
Factor K
1.37
Geometry factor G1
909.0
Geometry factor G2
153.0
Geometry factor Cg
0.1361
Effective load centre a (mm)
8.1
Weight
Weight (kg)
9.89
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.0
Housing fillet r max (mm)
2.5
Shaft shoulder da (mm)
232.0
Shaft shoulder db (mm)
237.0
Housing shoulder Da (mm)
290.0
Housing shoulder Db (mm)
281.0
Cage projection Aa (mm)
4.7
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
140,250
102
3,386
6
93,500
392
13,083
8
70,125
1,024
34,133
10
56,100
2,154
71,814
15
37,400
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 561,000 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.
