Original catalogue drawing - Timken TRB Catalog, page 274
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
79.985
3.149
D
Outside diameter
147.638
5.8125
B
Inner-ring / bearing width
36.322
1.43
T
Overall assembly width
35.717
1.4062
C
Cup / outer-ring width
26.192
1.0312
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)
79.985
Bore d (in)
3.1490
Outside dia. D (mm)
147.638
Outside dia. D (in)
5.8125
Width B (mm)
36.322
Overall width T (mm)
35.717
Overall width T (in)
1.4062
Cup width C (mm)
26.192
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
48600
Basic static load rating Cor (lbs)
71600
Basic dynamic load rating Cr (N)
216000
Basic static load rating C0r (N)
319000
Dynamic rating C1 (N, ISO)
216000
Dynamic rating C1 (lbf, ISO)
48600
Radial rating C90 (N)
56000
Radial rating C90 (lbf)
12600
Thrust rating Ca90 (N)
42400
Thrust rating Ca90 (lbf)
9530
Static rating C0 (N)
319000
Static rating C0 (lbf)
71600
Factor e
0.44
Factor Y
1.36
Factor K
1.32
Geometry factor G1
151.4
Geometry factor G2
38.3
Geometry factor Cg
0.1416
Effective load centre a (mm)
-2.5
Weight
Weight (kg)
2.67
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)
142.0
Housing shoulder Db (mm)
135.0
Cage projection Aa (mm)
4.1
Cage projection Ab (mm)
1.7
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
54,000
102
3,386
6
36,000
392
13,083
8
27,000
1,024
34,133
10
21,600
2,154
71,814
15
14,400
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 216,000 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.274 (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.
