Original catalogue drawing - Timken TRB Catalog, page 130
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
34.925
1.375
D
Outside diameter
73.025
2.875
B
Inner-ring / bearing width
24.608
0.9688
T
Overall assembly width
23.812
0.9375
C
Cup / outer-ring width
19.05
0.75
r
Chamfer (min)
2.3
0.0906
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)
34.925
Bore d (in)
1.3750
Outside dia. D (mm)
73.025
Outside dia. D (in)
2.8750
Width B (mm)
24.608
Overall width T (mm)
23.812
Overall width T (in)
0.9375
Cup width C (mm)
19.050
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
19100
Basic static load rating Cor (lbs)
21900
Basic dynamic load rating Cr (N)
85100
Basic static load rating C0r (N)
97400
Dynamic rating C1 (N, ISO)
85100
Dynamic rating C1 (lbf, ISO)
19100
Radial rating C90 (N)
22100
Radial rating C90 (lbf)
4960
Thrust rating Ca90 (N)
11000
Thrust rating Ca90 (lbf)
2460
Static rating C0 (N)
97400
Static rating C0 (lbf)
21900
Factor e
0.29
Factor Y
2.07
Factor K
2.01
Geometry factor G1
26.4
Geometry factor G2
10.9
Geometry factor Cg
0.0695
Effective load centre a (mm)
-8.1
Weight
Weight (kg)
0.46
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
2.3
Shaft shoulder da (mm)
40.5
Shaft shoulder db (mm)
47.0
Housing shoulder Da (mm)
68.0
Housing shoulder Db (mm)
64.0
Cage projection Aa (mm)
0.9
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
21,275
102
3,386
6
14,183
392
13,083
8
10,638
1,024
34,133
10
8,510
2,154
71,814
15
5,673
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 85,100 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.130 (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.
