Original catalogue drawing - Timken TRB Catalog, page 354
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
254
10
D
Outside diameter
400.05
15.75
B
Inner-ring / bearing width
55.562
2.1875
T
Overall assembly width
57.15
2.25
C
Cup / outer-ring width
41.275
1.625
r
Chamfer (min)
1.5
0.0591
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)
254.000
Bore d (in)
10.0000
Outside dia. D (mm)
400.050
Outside dia. D (in)
15.7500
Width B (mm)
55.562
Overall width T (mm)
57.150
Overall width T (in)
2.2500
Cup width C (mm)
41.275
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
176000
Basic static load rating Cor (lbs)
313000
Basic dynamic load rating Cr (N)
782000
Basic static load rating C0r (N)
1390000
Dynamic rating C1 (N, ISO)
782000
Dynamic rating C1 (lbf, ISO)
176000
Radial rating C90 (N)
203000
Radial rating C90 (lbf)
45600
Thrust rating Ca90 (N)
115000
Thrust rating Ca90 (lbf)
25900
Static rating C0 (N)
1390000
Static rating C0 (lbf)
313000
Factor e
0.33
Factor Y
1.81
Factor K
1.76
Geometry factor G1
1323.1
Geometry factor G2
218.0
Geometry factor Cg
0.1413
Effective load centre a (mm)
3.3
Weight
Weight (kg)
24.94
Cup weight (kg)
8.35
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.3
Housing fillet r max (mm)
1.5
Shaft shoulder da (mm)
272.0
Shaft shoulder db (mm)
278.0
Housing shoulder Da (mm)
369.0
Housing shoulder Db (mm)
371.0
Cage projection Aa (mm)
6.3
Cage projection Ab (mm)
5.4
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
195,500
102
3,386
6
130,333
392
13,083
8
97,750
1,024
34,133
10
78,200
2,154
71,814
15
52,133
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 782,000 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.354 (dimensions) / p.152 (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.
