Original catalogue drawing - Timken TRB Catalog, page 338
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
200
7.874
D
Outside diameter
300
11.811
B
Inner-ring / bearing width
62
2.4409
T
Overall assembly width
65
2.5591
C
Cup / outer-ring width
51
2.0079
r
Chamfer (min)
2.5
0.0984
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)
200.000
Bore d (in)
7.8740
Outside dia. D (mm)
300.000
Outside dia. D (in)
11.8110
Width B (mm)
62.000
Overall width T (mm)
65.000
Overall width T (in)
2.5591
Cup width C (mm)
51.000
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
156000
Basic static load rating Cor (lbs)
287000
Basic dynamic load rating Cr (N)
695000
Basic static load rating C0r (N)
1280000
Dynamic rating C1 (N, ISO)
695000
Dynamic rating C1 (lbf, ISO)
156000
Radial rating C90 (N)
180000
Radial rating C90 (lbf)
40500
Thrust rating Ca90 (N)
161000
Thrust rating Ca90 (lbf)
36200
Static rating C0 (N)
1280000
Static rating C0 (lbf)
287000
Factor e
0.52
Factor Y
1.15
Factor K
1.12
Geometry factor G1
853.6
Geometry factor G2
126.4
Geometry factor Cg
0.1428
Effective load centre a (mm)
8.1
Weight
Weight (kg)
15.32
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
2.5
Shaft shoulder da (mm)
215.0
Shaft shoulder db (mm)
226.0
Housing shoulder Da (mm)
288.9
Housing shoulder Db (mm)
273.0
Cage projection Aa (mm)
4.8
Cage projection Ab (mm)
6.1
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
173,750
102
3,386
6
115,833
392
13,083
8
86,875
1,024
34,133
10
69,500
2,154
71,814
15
46,333
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 695,000 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.338 (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.
