Original catalogue drawing - Timken TRB Catalog, page 276
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
80.962
3.1875
D
Outside diameter
133.35
5.25
B
Inner-ring / bearing width
39.688
1.5625
T
Overall assembly width
39.688
1.5625
C
Cup / outer-ring width
32.545
1.2813
r
Chamfer (min)
0.8
0.0315
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)
80.962
Bore d (in)
3.1875
Outside dia. D (mm)
133.350
Outside dia. D (in)
5.2500
Width B (mm)
39.688
Overall width T (mm)
39.688
Overall width T (in)
1.5625
Cup width C (mm)
32.545
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
58200
Basic static load rating Cor (lbs)
79300
Basic dynamic load rating Cr (N)
259000
Basic static load rating C0r (N)
353000
Dynamic rating C1 (N, ISO)
259000
Dynamic rating C1 (lbf, ISO)
58200
Radial rating C90 (N)
67100
Radial rating C90 (lbf)
15100
Thrust rating Ca90 (N)
46200
Thrust rating Ca90 (lbf)
10400
Static rating C0 (N)
353000
Static rating C0 (lbf)
79300
Factor e
0.40
Factor Y
1.49
Factor K
1.45
Geometry factor G1
154.1
Geometry factor G2
43.1
Geometry factor Cg
0.0955
Effective load centre a (mm)
-7.4
Weight
Weight (kg)
2.23
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
0.8
Shaft shoulder da (mm)
91.0
Shaft shoulder db (mm)
98.0
Housing shoulder Da (mm)
128.0
Housing shoulder Db (mm)
120.0
Cage projection Aa (mm)
1.7
Cage projection Ab (mm)
2.5
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
64,750
102
3,386
6
43,167
392
13,083
8
32,375
1,024
34,133
10
25,900
2,154
71,814
15
17,267
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 259,000 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.276 (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.
