Original catalogue drawing - Timken TRB Catalog, page 142
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
38
1.4961
D
Outside diameter
68
2.6772
B
Inner-ring / bearing width
16.52
0.6504
T
Overall assembly width
16.02
0.6307
C
Cup / outer-ring width
12
0.4724
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)
38.000
Bore d (in)
1.4961
Outside dia. D (mm)
68.000
Outside dia. D (in)
2.6772
Width B (mm)
16.520
Overall width T (mm)
16.020
Overall width T (in)
0.6307
Cup width C (mm)
12.000
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
11400
Basic static load rating Cor (lbs)
13000
Basic dynamic load rating Cr (N)
50700
Basic static load rating C0r (N)
57800
Dynamic rating C1 (N, ISO)
50700
Dynamic rating C1 (lbf, ISO)
11400
Radial rating C90 (N)
13100
Radial rating C90 (lbf)
2960
Thrust rating Ca90 (N)
10000
Thrust rating Ca90 (lbf)
2250
Static rating C0 (N)
57800
Static rating C0 (lbf)
13000
Factor e
0.44
Factor Y
1.35
Factor K
1.31
Geometry factor G1
17.5
Geometry factor G2
11.5
Geometry factor Cg
0.0694
Effective load centre a (mm)
-1.5
Weight
Weight (kg)
0.24
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
2.0
Housing fillet r max (mm)
1.5
Shaft shoulder da (mm)
43.0
Shaft shoulder db (mm)
46.0
Housing shoulder Da (mm)
64.0
Housing shoulder Db (mm)
61.0
Cage projection Aa (mm)
1.1
Cage projection Ab (mm)
1.6
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
12,675
102
3,386
6
8,450
392
13,083
8
6,338
1,024
34,133
10
5,070
2,154
71,814
15
3,380
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 50,700 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.142 (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.
