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
200
7.874
D
Outside diameter
310
12.2047
B
Inner-ring / bearing width
70
2.7559
T
Overall assembly width
70
2.7559
C
Cup / outer-ring width
53
2.0866
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)
200.000
Bore d (in)
7.8740
Outside dia. D (mm)
310.000
Outside dia. D (in)
12.2047
Width B (mm)
70.000
Overall width T (mm)
70.000
Overall width T (in)
2.7559
Cup width C (mm)
53.000
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
191000
Basic static load rating Cor (lbs)
342000
Basic dynamic load rating Cr (N)
847000
Basic static load rating C0r (N)
1520000
Dynamic rating C1 (N, ISO)
847000
Dynamic rating C1 (lbf, ISO)
191000
Radial rating C90 (N)
220000
Radial rating C90 (lbf)
49400
Thrust rating Ca90 (N)
162000
Thrust rating Ca90 (lbf)
36400
Static rating C0 (N)
1520000
Static rating C0 (lbf)
342000
Factor e
0.43
Factor Y
1.39
Factor K
1.36
Geometry factor G1
977.7
Geometry factor G2
113.4
Geometry factor Cg
0.1410
Effective load centre a (mm)
-3.3
Weight
Weight (kg)
18.68
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.0
Housing fillet r max (mm)
2.5
Shaft shoulder da (mm)
220.0
Shaft shoulder db (mm)
225.0
Housing shoulder Da (mm)
297.0
Housing shoulder Db (mm)
284.0
Cage projection Aa (mm)
7.4
Cage projection Ab (mm)
5.6
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
211,750
102
3,386
6
141,167
392
13,083
8
105,875
1,024
34,133
10
84,700
2,154
71,814
15
56,467
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 847,000 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.
