Original catalogue drawing - Timken TRB Catalog, page 366
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
325.438
12.8125
D
Outside diameter
596.9
23.5
B
Inner-ring / bearing width
136.525
5.375
T
Overall assembly width
136.525
5.375
C
Cup / outer-ring width
98.425
3.875
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)
325.438
Bore d (in)
12.8125
Outside dia. D (mm)
596.900
Outside dia. D (in)
23.5000
Width B (mm)
136.525
Overall width T (mm)
136.525
Overall width T (in)
5.3750
Cup width C (mm)
98.425
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
744000
Basic static load rating Cor (lbs)
1030000
Basic dynamic load rating Cr (N)
3310000
Basic static load rating C0r (N)
4600000
Dynamic rating C1 (N, ISO)
3310000
Dynamic rating C1 (lbf, ISO)
744000
Radial rating C90 (N)
858000
Radial rating C90 (lbf)
193000
Thrust rating Ca90 (N)
620000
Thrust rating Ca90 (lbf)
139000
Static rating C0 (N)
4600000
Static rating C0 (lbf)
1030000
Factor e
0.42
Factor Y
1.42
Factor K
1.38
Geometry factor G1
3159.0
Geometry factor G2
183.3
Geometry factor Cg
0.2053
Effective load centre a (mm)
-16.8
Weight
Weight (kg)
156.18
Cup weight (kg)
51.83
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
6.4
Housing fillet r max (mm)
6.4
Shaft shoulder da (mm)
359.0
Shaft shoulder db (mm)
369.0
Housing shoulder Da (mm)
547.4
Housing shoulder Db (mm)
534.0
Cage projection Aa (mm)
20.4
Cage projection Ab (mm)
8.2
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
827,500
102
3,386
6
551,667
392
13,083
8
413,750
1,024
34,133
10
331,000
2,154
71,814
15
220,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 3,310,000 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.366 (dimensions) / p.204 (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.
