Original catalogue drawing - Timken TRB Catalog, page 356
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
258.762
10.1875
D
Outside diameter
400.05
15.75
B
Inner-ring / bearing width
67.47
2.6563
T
Overall assembly width
69.85
2.75
C
Cup / outer-ring width
46.038
1.8125
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)
258.762
Bore d (in)
10.1875
Outside dia. D (mm)
400.050
Outside dia. D (in)
15.7500
Width B (mm)
67.470
Overall width T (mm)
69.850
Overall width T (in)
2.7500
Cup width C (mm)
46.038
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
213000
Basic static load rating Cor (lbs)
326000
Basic dynamic load rating Cr (N)
949000
Basic static load rating C0r (N)
1450000
Dynamic rating C1 (N, ISO)
949000
Dynamic rating C1 (lbf, ISO)
213000
Radial rating C90 (N)
246000
Radial rating C90 (lbf)
55300
Thrust rating Ca90 (N)
166000
Thrust rating Ca90 (lbf)
37400
Static rating C0 (N)
1450000
Static rating C0 (lbf)
326000
Factor e
0.39
Factor Y
1.52
Factor K
1.48
Geometry factor G1
1320.8
Geometry factor G2
207.5
Geometry factor Cg
0.1497
Effective load centre a (mm)
0.8
Weight
Weight (kg)
27.08
Cone weight (kg)
19.24
Cup weight (kg)
8.57
Total weight (kg)
27.81
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
9.7
Housing fillet r max (mm)
6.4
Shaft shoulder da (mm)
279.0
Shaft shoulder db (mm)
295.0
Housing shoulder Da (mm)
371.5
Housing shoulder Db (mm)
366.0
Cage projection Aa (mm)
14.3
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
237,250
102
3,386
6
158,167
392
13,083
8
118,625
1,024
34,133
10
94,900
2,154
71,814
15
63,267
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 949,000 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.356 (dimensions) / p.133 (cone) / p.133 (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.
