Original catalogue drawing - Timken TRB Catalog, page 242
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
64.987
2.5585
D
Outside diameter
119.985
4.7238
B
Inner-ring / bearing width
30.924
1.2175
T
Overall assembly width
32.75
1.2894
C
Cup / outer-ring width
26.95
1.061
r
Chamfer (min)
0.8
0.0315
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)
64.987
Bore d (in)
2.5586
Outside dia. D (mm)
119.985
Outside dia. D (in)
4.7238
Width B (mm)
30.924
Overall width T (mm)
32.750
Overall width T (in)
1.2894
Cup width C (mm)
26.950
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
37500
Basic static load rating Cor (lbs)
50300
Basic dynamic load rating Cr (N)
167000
Basic static load rating C0r (N)
224000
Dynamic rating C1 (N, ISO)
167000
Dynamic rating C1 (lbf, ISO)
37500
Radial rating C90 (N)
43300
Radial rating C90 (lbf)
9730
Thrust rating Ca90 (N)
25100
Thrust rating Ca90 (lbf)
5650
Static rating C0 (N)
224000
Static rating C0 (lbf)
50300
Factor e
0.34
Factor Y
1.77
Factor K
1.72
Geometry factor G1
84.3
Geometry factor G2
23.7
Geometry factor Cg
0.1074
Effective load centre a (mm)
-6.6
Weight
Weight (kg)
1.55
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
2.3
Housing fillet r max (mm)
0.8
Shaft shoulder da (mm)
72.0
Shaft shoulder db (mm)
76.0
Housing shoulder Da (mm)
110.0
Housing shoulder Db (mm)
107.0
Cage projection Aa (mm)
1.6
Cage projection Ab (mm)
1.9
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
41,750
102
3,386
6
27,833
392
13,083
8
20,875
1,024
34,133
10
16,700
2,154
71,814
15
11,133
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 167,000 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.242 (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.
