Original catalogue drawing - Timken TRB Catalog, page 306
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
107.95
4.25
D
Outside diameter
158.75
6.25
B
Inner-ring / bearing width
21.438
0.844
T
Overall assembly width
23.02
0.9063
C
Cup / outer-ring width
15.875
0.625
r
Chamfer (min)
3.3
0.1299
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)
107.950
Bore d (in)
4.2500
Outside dia. D (mm)
158.750
Outside dia. D (in)
6.2500
Width B (mm)
21.438
Overall width T (mm)
23.020
Overall width T (in)
0.9063
Cup width C (mm)
15.875
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
30700
Basic static load rating Cor (lbs)
40100
Basic dynamic load rating Cr (N)
137000
Basic static load rating C0r (N)
179000
Dynamic rating C1 (N, ISO)
137000
Dynamic rating C1 (lbf, ISO)
30700
Radial rating C90 (N)
35400
Radial rating C90 (lbf)
7960
Thrust rating Ca90 (N)
36700
Thrust rating Ca90 (lbf)
8250
Static rating C0 (N)
179000
Static rating C0 (lbf)
40100
Factor e
0.61
Factor Y
0.99
Factor K
0.96
Geometry factor G1
123.7
Geometry factor G2
57.1
Geometry factor Cg
0.1443
Effective load centre a (mm)
13.7
Weight
Weight (kg)
1.37
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
115.0
Shaft shoulder db (mm)
122.0
Housing shoulder Da (mm)
152.0
Housing shoulder Db (mm)
143.0
Cage projection Aa (mm)
2.5
Cage projection Ab (mm)
3.0
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
34,250
102
3,386
6
22,833
392
13,083
8
17,125
1,024
34,133
10
13,700
2,154
71,814
15
9,133
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 137,000 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.306 (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.
