Original catalogue drawing - Timken TRB Catalog, page 132
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
80.035
3.151
B
Inner-ring / bearing width
23.698
0.933
T
Overall assembly width
24.608
0.9688
C
Cup / outer-ring width
18.512
0.7288
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)
34.925
Bore d (in)
1.3750
Outside dia. D (mm)
80.035
Outside dia. D (in)
3.1510
Width B (mm)
23.698
Overall width T (mm)
24.608
Overall width T (in)
0.9688
Cup width C (mm)
18.512
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
17500
Basic static load rating Cor (lbs)
20500
Basic dynamic load rating Cr (N)
78000
Basic static load rating C0r (N)
91100
Dynamic rating C1 (N, ISO)
78000
Dynamic rating C1 (lbf, ISO)
17500
Radial rating C90 (N)
20200
Radial rating C90 (lbf)
4550
Thrust rating Ca90 (N)
19400
Thrust rating Ca90 (lbf)
4370
Static rating C0 (N)
91100
Static rating C0 (lbf)
20500
Factor e
0.56
Factor Y
1.07
Factor K
1.04
Geometry factor G1
24.6
Geometry factor G2
12.6
Geometry factor Cg
0.0839
Effective load centre a (mm)
-2.5
Weight
Weight (kg)
0.59
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
0.8
Housing fillet r max (mm)
1.5
Shaft shoulder da (mm)
44.5
Shaft shoulder db (mm)
45.5
Housing shoulder Da (mm)
75.0
Housing shoulder Db (mm)
68.0
Cage projection Aa (mm)
3.2
Cage projection Ab (mm)
1.5
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
19,500
102
3,386
6
13,000
392
13,083
8
9,750
1,024
34,133
10
7,800
2,154
71,814
15
5,200
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 78,000 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.132 (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.
