Original catalogue drawing - Timken TRB Catalog, page 108
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
29.987
1.1806
D
Outside diameter
69.012
2.717
B
Inner-ring / bearing width
19.202
0.756
T
Overall assembly width
19.845
0.7813
C
Cup / outer-ring width
15.875
0.625
r
Chamfer (min)
1.3
0.0512
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)
29.987
Bore d (in)
1.1806
Outside dia. D (mm)
69.012
Outside dia. D (in)
2.7170
Width B (mm)
19.202
Overall width T (mm)
19.845
Overall width T (in)
0.7813
Cup width C (mm)
15.875
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
14500
Basic static load rating Cor (lbs)
13900
Basic dynamic load rating Cr (N)
64700
Basic static load rating C0r (N)
61700
Dynamic rating C1 (N, ISO)
64700
Dynamic rating C1 (lbf, ISO)
14500
Radial rating C90 (N)
16800
Radial rating C90 (lbf)
3770
Thrust rating Ca90 (N)
11000
Thrust rating Ca90 (lbf)
2470
Static rating C0 (N)
61700
Static rating C0 (lbf)
13900
Factor e
0.38
Factor Y
1.57
Factor K
1.53
Geometry factor G1
18.0
Geometry factor G2
13.3
Geometry factor Cg
0.0668
Effective load centre a (mm)
-4.3
Weight
Weight (kg)
0.36
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
0.8
Housing fillet r max (mm)
1.3
Shaft shoulder da (mm)
37.0
Shaft shoulder db (mm)
37.5
Housing shoulder Da (mm)
63.0
Housing shoulder Db (mm)
60.0
Cage projection Aa (mm)
1.0
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
16,175
102
3,386
6
10,783
392
13,083
8
8,088
1,024
34,133
10
6,470
2,154
71,814
15
4,313
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 64,700 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.108 (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.
