Original catalogue drawing - Timken TRB Catalog, page 360
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
275
10.8268
D
Outside diameter
352.425
13.875
B
Inner-ring / bearing width
40
1.5748
T
Overall assembly width
36.513
1.4375
C
Cup / outer-ring width
23.812
0.9375
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)
275.000
Bore d (in)
10.8268
Outside dia. D (mm)
352.425
Outside dia. D (in)
13.8750
Width B (mm)
40.000
Overall width T (mm)
36.513
Overall width T (in)
1.4375
Cup width C (mm)
23.812
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
68700
Basic static load rating Cor (lbs)
149000
Basic dynamic load rating Cr (N)
306000
Basic static load rating C0r (N)
664000
Dynamic rating C1 (N, ISO)
306000
Dynamic rating C1 (lbf, ISO)
68700
Radial rating C90 (N)
79200
Radial rating C90 (lbf)
17800
Thrust rating Ca90 (N)
73100
Thrust rating Ca90 (lbf)
16400
Static rating C0 (N)
664000
Static rating C0 (lbf)
149000
Factor e
0.54
Factor Y
1.11
Factor K
1.08
Geometry factor G1
970.3
Geometry factor G2
322.9
Geometry factor Cg
0.1471
Effective load centre a (mm)
35.1
Weight
Weight (kg)
8.32
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
287.0
Shaft shoulder db (mm)
292.0
Housing shoulder Da (mm)
342.0
Housing shoulder Db (mm)
332.0
Cage projection Aa (mm)
4.2
Cage projection Ab (mm)
0.3
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
76,500
102
3,386
6
51,000
392
13,083
8
38,250
1,024
34,133
10
30,600
2,154
71,814
15
20,400
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 306,000 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.360 (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.
