Original catalogue drawing - Timken TRB Catalog, page 386
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
615.95
24.25
D
Outside diameter
708.025
27.875
B
Inner-ring / bearing width
41.275
1.625
T
Overall assembly width
41.275
1.625
C
Cup / outer-ring width
29.367
1.1562
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)
615.950
Bore d (in)
24.2500
Outside dia. D (mm)
708.025
Outside dia. D (in)
27.8750
Width B (mm)
41.275
Overall width T (mm)
41.275
Overall width T (in)
1.6250
Cup width C (mm)
29.367
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
136000
Basic static load rating Cor (lbs)
414000
Basic dynamic load rating Cr (N)
605000
Basic static load rating C0r (N)
1840000
Dynamic rating C1 (N, ISO)
605000
Dynamic rating C1 (lbf, ISO)
136000
Radial rating C90 (N)
157000
Radial rating C90 (lbf)
35200
Thrust rating Ca90 (N)
104000
Thrust rating Ca90 (lbf)
23400
Static rating C0 (N)
1840000
Static rating C0 (lbf)
414000
Factor e
0.39
Factor Y
1.55
Factor K
1.51
Geometry factor G1
6265.9
Geometry factor G2
2025.9
Geometry factor Cg
0.2418
Effective load centre a (mm)
61.7
Weight
Weight (kg)
23.09
Cone weight (kg)
16.28
Cup weight (kg)
6.95
Total weight (kg)
23.23
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
630.0
Shaft shoulder db (mm)
633.0
Housing shoulder Da (mm)
690.0
Housing shoulder Db (mm)
687.0
Cage projection Aa (mm)
3.1
Cage projection Ab (mm)
2.8
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
151,250
102
3,386
6
100,833
392
13,083
8
75,625
1,024
34,133
10
60,500
2,154
71,814
15
40,333
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 605,000 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.386 (dimensions) / p.194 (cone) / p.194 (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.
