Original catalogue drawing - Timken TRB Catalog, page 94
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
24.981
0.9835
D
Outside diameter
61.981
2.4402
B
Inner-ring / bearing width
16.566
0.6522
T
Overall assembly width
16.002
0.63
C
Cup / outer-ring width
14.288
0.5625
r
Chamfer (min)
1.5
0.0591
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)
24.981
Bore d (in)
0.9835
Outside dia. D (mm)
61.981
Outside dia. D (in)
2.4402
Width B (mm)
16.566
Overall width T (mm)
16.002
Overall width T (in)
0.6300
Cup width C (mm)
14.288
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
9720
Basic static load rating Cor (lbs)
9910
Basic dynamic load rating Cr (N)
43200
Basic static load rating C0r (N)
44100
Dynamic rating C1 (N, ISO)
43200
Dynamic rating C1 (lbf, ISO)
9720
Radial rating C90 (N)
11200
Radial rating C90 (lbf)
2520
Thrust rating Ca90 (N)
7340
Thrust rating Ca90 (lbf)
1650
Static rating C0 (N)
44100
Static rating C0 (lbf)
9910
Factor e
0.38
Factor Y
1.57
Factor K
1.53
Geometry factor G1
11.8
Geometry factor G2
7.5
Geometry factor Cg
0.0579
Effective load centre a (mm)
-3.6
Weight
Weight (kg)
0.25
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
1.5
Housing fillet r max (mm)
1.5
Shaft shoulder da (mm)
30.5
Shaft shoulder db (mm)
33.0
Housing shoulder Da (mm)
57.0
Housing shoulder Db (mm)
54.0
Cage projection Aa (mm)
0.2
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
10,800
102
3,386
6
7,200
392
13,083
8
5,400
1,024
34,133
10
4,320
2,154
71,814
15
2,880
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 43,200 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.94 (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.
