Oiles 300
Oil-impregnated expanded cast iron bearings
Feature
Reduces much less lubrication than copper alloy bearings.
Maintains oil lm well and features superior wear resistance and seizure
resistance.
Places no restrictions on sliding surface shapes or motion forms.
Available in larger dimensions than oil-impregnated sintered bearings.
Standard products and materials for machining are available in various sizes.
Relief angle
Rake angle
Nose radius
（
mm
）
Speed
（
m/min
）
Cut depth
（
mm
）
Feed
（
mm/rev
）
carbide tool
（
JIS
）
5∼10゜
2∼5゜
0.40∼0.80
100∼200
0.05∼0.30
0.08∼0.30
Lathe turning
Cutting toolCondition
I.D.
class 7 to 8
O.D.
class 6 to 7
Length
class 8 to 9
Machining accuracy (bushing)
Classes here are in JIS standard.
This product demonstrates satisfactory
performance at the slide surface roughness
of Rz6.3 to 12.5
μ
m.
※
The values shown above are typical values, not the standard values.
Service range
Lubrication condition
Service temperature range
℃
Allowable max. pressure
P
N/mm
2
｛
kgf/cm
2
｝
Allowable max. velocity
V
m/s
｛
m/min
｝
Allowable max.
PV
value
N/mm
2
・
m/s
｛
kgf/cm
2
・
m/min
｝
periodic lubrication
−40∼＋100
1.00｛60｝
1.25｛765｝
10｛102｝
oil lubrication
−40∼＋150
3.35｛201｝
3.25｛1,990｝
Apply grease or oil impregnation after
machining.
Density
Tensile strength
Compressive strength
Impact strength
Hardness
Modulus of longitudinal elasticity
Co-efficient of linear expansion
Thermal conductivity
̶
JIS Z 2241
̶
JIS Z 2242
JIS Z 2246
̶
̶
̶
6.8
98｛10｝
294｛30｝
2｛0.2｝
20
58,000｛6,000｝
1.1
50.2｛0.12｝
Mechanical properties
g/cm
3
N/mm
2
｛kgf/mm
2
｝
N/mm
2
｛kgf/mm
2
｝
J/cm
2
｛kgfm/cm
2
｝
HS
N/mm
2
｛kgf/mm
2
｝
×10
−5
℃
−1
W/m℃｛cal/sec℃cm｝
259
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Product
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Oil impregnation method
Test data
W
Oil impregnation is required for oil-containing OILES bearings such as Oiles 300. If you purchase tube or bar
stocks, please follow the procedure below to impregnate finished products with lubrication oil before installation.
If these bearings are stored for a long time or if the bearings are washed, re-impregnate before installation.
Immerse the products into an oil bath. Heat the bath up to 100 ℃ to 110 ℃. Keep the temperature for 30 to
60 minutes until no more air bubbles come up.
Cut the heat source and let it cool down to the room temperature.
Take products out of the bath to install. If oil
impregnation by heating is not possible, leave the
products in the oil bath for 24 hours or more.
Operation conditions
Low load / high speed
Mid load / mid velocity
High load / low velocity
i.e.
Spindle oil
Motor oil
Gear oil
Viscosity
8 to 17cst（30℃）
8 to 15cst（98.9℃）
100 to 1000cst（37℃）
Types of oil
Selectoin of lubrication oil
Lubrication oil of low viscosity
Lubrication oil with limited viscosity change by temp.
Lubrication oil with high viscosity
Lubrication
Oiles bearings
Thermometer
Steel mesh
Heat source
Thrust rotation test
(Comparison with various copper alloy)
＜Testing conditions＞
Bearing dimension ： φ2 5×φ48×t 9
Mating material ： S55C（surface roughness Rz1.5μm）
Pressure ： initial contact pressure
0.99N/mm
2
｛10.1kgf/cm
2
｝
0.87N/mm
2
｛8.9kgf/cm
2
｝ is
inclementally loaded every 5 minutes
Final contact pressure ： 20.2N/mm
2
｛206.0kgf/cm
2
｝
Velocity ： 0.162m/s｛9.7m/min｝
Lubrication ： in oil
Wear amount〔mm〕
0 0.2 0.4 0.6 1.20 1.401.000.8
CAC403（BC3）
CAC502A（PBC2）
CAC603（LBC3）
Oiles 300
Coefficient of friction〔μ〕
0 0.20.1
CAC403（BC3）
CAC502A（PBC2）
CAC603（LBC3）
Oiles 300
F
F
F
F
S
S
S
S
Load resistance test / Final contact pressure ： 20.2N/mm
2
｛206.0kgf/cm
2
｝
F : Max. value
S : Initial value
260
Selection Guide
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Slide Shifter
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30B
Oiles 300 Bushings (Thin wall)
●
Use Oiles 300 in lubrication oil or with
periodic lubrication.
Motion
direction
Mating shaft Bushing
φd
φD
1.6
（ ）
h7
Housing
H7
chamfer
6.3
（ ）
Part No.
Specify Part No. by required I.D., O.D., and Length.
(e.g.) I.D. is 8mm, O.D. is 10mm, and length is 12mm.
30B - 081012 T
L
I.D. O.D.
φ
d
Tolerance
φ
D
Tolerance
5
5
6
8
10
12
12
14
14
16
16
18
20
7
8
10
12
14
16
16
18
18
20
22
24
050705T
060805T
6
050706T
060806T
081006T
8
050708T
060808T
081008T
101208T
121408T
121608T
10
060810T
081010T
101210T
121410T
121610T
141610T
141810T
161810T
T162010
12
081012T
101212T
121412T
121612T
141612T
141812T
15
101215T
121415T
121615T
141615T
141815T
161815T
162015T
20
121420T
121620T
141620T
141820T
161820T
162020T
182220T
202420T
30
182230T
202430T
＋0.058
＋0.058
＋0.062
＋0.068
＋0.081
＋0.081
＋0.081
＋0.081
＋0.081
＋0.089
＋0.089
＋0.105
＋0.034
＋0.034
＋0.034
＋0.041
＋0.041
＋0.041
＋0.041
＋0.041
＋0.041
＋0.049
＋0.049
＋0.049
＋0.030
＋0.030
＋0.034
＋0.034
＋0.047
＋0.047
＋0.047
＋0.047
＋0.047
＋0.047
＋0.047
＋0.063
※
The I.D. tolerance after press fitting is for reference only.
Length
L
Tolerance
0
−
0.2
I.D. tolerance
after press
fitting
(reference)
C0.3
C0.3
C0.3
C0.3
φd
φD
L
＋0.019
＋0.019
＋0.019
＋0.023
＋0.023
＋0.023
＋0.023
＋0.023
＋0.023
＋0.028
＋0.028
＋0.028
＋0.012
＋0.012
＋0.012
＋0.012
＋0.020
＋0.020
＋0.020
＋0.020
＋0.020
＋0.020
＋0.020
＋0.030
＋0.040
＋0.040
＋0.040
＋0.046
＋0.054
＋0.054
＋0.054
＋0.054
＋0.054
＋0.062
＋0.062
＋0.072
The dimensional tolerances are the values measured at +25
℃
.
261
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Slide Shifter
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Oiles 300 Bushings
Thin wall
Press-fitting
Housing chamfer
For the housing chamfer, either a round chamfer or a
tapered chamfer is recommended. In case of a
C-surface chamfer, (more than C1.0) make sure there
is no burr. Smoother press-fitting is possible by
applying small amount of grease or lubricant.
Press-fit force
Press-fit smoothly with hydralic (pressure), pneumatic
pressure, or a vice. Avoid press-fit by use of impact
such as use of a hammer. It might induce damage of
the bushing, or change the size of the inner diameter
after press-fit.
Press-fitting jig
Generally, as shown in the figure 1, a mandrel is used
for the press-fitting. However use of a guide ring
facilitates easier press-fitting. Use of a guide ring
prevents damage of a bushing at the time of
press-fitting. The dimension of a guide ring should be
calculated from the table below.
Inner diameter of the guide ring should be the size so
that the bushing can be inserted by hands. Length of
the guide ring should be more than one-third of the
bushing, or if possible, it should be the same length as
the bushing.
Dimension of bushing
I.D. D
0
O.D. D1
Length L
Dimension of mandrel
d
0＝D0−（0.05 to 0.10）
d1＝D1−（0.20 to 0.30）
R≧L
The dimension of mandrel should be calculated
from table below.
Load Load
Mandrel
Bushing Guide ring
Housing
Regular press-fitting Press-fitting with guide ring
L
R
D0
d0
d1
D1
The dimension of guide ring should be calculated
from table below.
Bushing I.D.
Up to φ20
Guide ring O.D.
D1＋（10 to 15）
Guide ring I.D.
D1＋（0.1 to 0.3）
Figure 1
Figure 2
D1＋（10∼15）
D
1＋（0.1∼0.3）
Mandrel
Bushing Guide ring
262
Selection Guide
Product
Information
Plastic Bearing
Multi-layer Bearing
Metallic Bearing
Air Bearings
Technical
Information
Slide Shifter
Corporate Pro le
184-271_金属系ヘアリンク.indd 262 19/10/17 19:45