Original catalogue drawing - Timken TRB Catalog, page 336
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
190.5
7.5
D
Outside diameter
288.925
11.375
B
Inner-ring / bearing width
55.562
2.1875
T
Overall assembly width
55.562
2.1875
C
Cup / outer-ring width
42.862
1.6875
r
Chamfer (min)
3.3
0.1299
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)
190.500
Bore d (in)
7.5000
Outside dia. D (mm)
288.925
Outside dia. D (in)
11.3750
Width B (mm)
55.562
Overall width T (mm)
55.562
Overall width T (in)
2.1875
Cup width C (mm)
42.862
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
130000
Basic static load rating Cor (lbs)
239000
Basic dynamic load rating Cr (N)
577000
Basic static load rating C0r (N)
1060000
Dynamic rating C1 (N, ISO)
577000
Dynamic rating C1 (lbf, ISO)
130000
Radial rating C90 (N)
150000
Radial rating C90 (lbf)
33600
Thrust rating Ca90 (N)
91500
Thrust rating Ca90 (lbf)
20600
Static rating C0 (N)
1060000
Static rating C0 (lbf)
239000
Factor e
0.36
Factor Y
1.68
Factor K
1.63
Geometry factor G1
804.7
Geometry factor G2
110.8
Geometry factor Cg
0.1238
Effective load centre a (mm)
-2.8
Weight
Weight (kg)
12.3
Cone weight (kg)
8.11
Cup weight (kg)
4.27
Total weight (kg)
12.38
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
203.0
Shaft shoulder db (mm)
210.0
Housing shoulder Da (mm)
271.0
Housing shoulder Db (mm)
265.0
Cage projection Aa (mm)
5.2
Cage projection Ab (mm)
2.3
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
144,250
102
3,386
6
96,167
392
13,083
8
72,125
1,024
34,133
10
57,700
2,154
71,814
15
38,467
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 577,000 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.336 (dimensions) / p.112 (cone) / p.112 (cup)
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.
