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
317.5
12.5
D
Outside diameter
622.3
24.5
B
Inner-ring / bearing width
131.762
5.1875
T
Overall assembly width
147.638
5.8125
C
Cup / outer-ring width
82.55
3.25
r
Chamfer (min)
12.7
0.5
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)
317.500
Bore d (in)
12.5000
Outside dia. D (mm)
622.300
Outside dia. D (in)
24.5000
Width B (mm)
131.762
Overall width T (mm)
147.638
Overall width T (in)
5.8125
Cup width C (mm)
82.550
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
710000
Basic static load rating Cor (lbs)
927000
Basic dynamic load rating Cr (N)
3160000
Basic static load rating C0r (N)
4130000
Dynamic rating C1 (N, ISO)
3160000
Dynamic rating C1 (lbf, ISO)
710000
Radial rating C90 (N)
819000
Radial rating C90 (lbf)
184000
Thrust rating Ca90 (N)
1310000
Thrust rating Ca90 (lbf)
295000
Static rating C0 (N)
4130000
Static rating C0 (lbf)
927000
Factor e
0.94
Factor Y
0.64
Factor K
0.62
Geometry factor G1
2502.7
Geometry factor G2
149.1
Geometry factor Cg
0.2401
Effective load centre a (mm)
60.5
Weight
Weight (kg)
178.13
Cup weight (kg)
52.33
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
14.3
Housing fillet r max (mm)
12.7
Shaft shoulder da (mm)
373.0
Shaft shoulder db (mm)
410.0
Housing shoulder Da (mm)
581.6
Housing shoulder Db (mm)
531.0
Cage projection Aa (mm)
25.1
Cage projection Ab (mm)
17.7
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
790,000
102
3,386
6
526,667
392
13,083
8
395,000
1,024
34,133
10
316,000
2,154
71,814
15
210,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 3,160,000 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.224 (cone) / p.224 (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.
