Original catalogue drawing - Timken TRB Catalog, page 384
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
596.9
23.5
D
Outside diameter
685.8
27
B
Inner-ring / bearing width
31.75
1.25
T
Overall assembly width
31.75
1.25
C
Cup / outer-ring width
25.4
1
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)
596.900
Bore d (in)
23.5000
Outside dia. D (mm)
685.800
Outside dia. D (in)
27.0000
Width B (mm)
31.750
Overall width T (mm)
31.750
Overall width T (in)
1.2500
Cup width C (mm)
25.400
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
77300
Basic static load rating Cor (lbs)
217000
Basic dynamic load rating Cr (N)
344000
Basic static load rating C0r (N)
963000
Dynamic rating C1 (N, ISO)
344000
Dynamic rating C1 (lbf, ISO)
77300
Radial rating C90 (N)
89200
Radial rating C90 (lbf)
20000
Thrust rating Ca90 (N)
80400
Thrust rating Ca90 (lbf)
18100
Static rating C0 (N)
963000
Static rating C0 (lbf)
217000
Factor e
0.53
Factor Y
1.14
Factor K
1.11
Geometry factor G1
3739.1
Geometry factor G2
1810.4
Geometry factor Cg
0.2225
Effective load centre a (mm)
96.0
Weight
Weight (kg)
16.5
Cone weight (kg)
10.98
Cup weight (kg)
5.77
Total weight (kg)
16.75
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
615.0
Shaft shoulder db (mm)
615.0
Housing shoulder Da (mm)
669.0
Housing shoulder Db (mm)
663.0
Cage projection Aa (mm)
1.6
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
86,000
102
3,386
6
57,333
392
13,083
8
43,000
1,024
34,133
10
34,400
2,154
71,814
15
22,933
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 344,000 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.384 (dimensions) / p.201 (cone) / p.201 (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.
