Original catalogue drawing - Timken TRB Catalog, page 314
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
120.65
4.75
D
Outside diameter
273.05
10.75
B
Inner-ring / bearing width
82.55
3.25
T
Overall assembly width
82.55
3.25
C
Cup / outer-ring width
53.975
2.125
r
Chamfer (min)
6.4
0.252
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)
120.650
Bore d (in)
4.7500
Outside dia. D (mm)
273.050
Outside dia. D (in)
10.7500
Width B (mm)
82.550
Overall width T (mm)
82.550
Overall width T (in)
3.2500
Cup width C (mm)
53.975
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
240000
Basic static load rating Cor (lbs)
243000
Basic dynamic load rating Cr (N)
1070000
Basic static load rating C0r (N)
1080000
Dynamic rating C1 (N, ISO)
1070000
Dynamic rating C1 (lbf, ISO)
240000
Radial rating C90 (N)
276000
Radial rating C90 (lbf)
62100
Thrust rating Ca90 (N)
299000
Thrust rating Ca90 (lbf)
67200
Static rating C0 (N)
1080000
Static rating C0 (lbf)
243000
Factor e
0.63
Factor Y
0.95
Factor K
0.92
Geometry factor G1
384.1
Geometry factor G2
37.8
Geometry factor Cg
0.1472
Effective load centre a (mm)
-6.6
Weight
Weight (kg)
21.33
Cone weight (kg)
15.04
Cup weight (kg)
6.96
Total weight (kg)
22.0
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
6.4
Housing fillet r max (mm)
6.4
Shaft shoulder da (mm)
147.2
Shaft shoulder db (mm)
168.0
Housing shoulder Da (mm)
253.3
Housing shoulder Db (mm)
230.0
Cage projection Aa (mm)
15.1
Cage projection Ab (mm)
4.1
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
267,500
102
3,386
6
178,333
392
13,083
8
133,750
1,024
34,133
10
107,000
2,154
71,814
15
71,333
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,070,000 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.314 (dimensions) / p.222 (cone) / p.222 (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.
