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| BOMOR Industrial Supplies are sole marketers of this range of top quality oil impregnated |
| bronze products which have become one of industry's most essential tools |
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| Although first used in the motor industry, these products are now used universally |
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| Heavy Duty Oil |
| The heavy-duty oil cushioned bearing developed in the late twenties achieved notable success on |
| cars and has now been mass produced for general industry |
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| Powered Metal Bearings |
| Powdered metal bearing materials covering a wide spectrum from low-speed highload applications to moderate load very high speed applications are available |
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Advantages & Applications |
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Oil Impregnated Bronze products serve all industry in effecting cost reduction and improving performance. |
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Apart from the motor industry many applications have emerged in industries such as mining, food, iron & |
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steel, paper, chemical, textiles, printing, bakeries, general engineering and manufacturing. |
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Advantages |
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| 1. |
Permanent self lubrication in inaccessible areas. |
| 2. |
Food, canning or textile industries where lubrication is required without product contamination. |
| 3. |
It Has long life characteristics. |
| 4. |
High resistance properties. |
| 5. |
No maintenance. |
| 6. |
Oil is retained indefinitely. |
| 7. |
Product has been proved over many years. |
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Capillary Action |
| During manufacture the bar stock is |
| vacuum impregnated with oil to a level |
| of some 18 % (by volume) |
| The oil is supplied to the shaft through |
| thousands of interconnected, |
| oil-impregnated pores. |
| Due to capillary action present in the |
| material, the shaft wet with oil, |
| whether in motion or not. |
| An immediate oil wedge is always |
| present when the shaft is in motion, |
| assuring proper lubrication at all times. |
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Typical Properties |
| Properties |
Materials |
| Composition-Per Cent |
Oil Impregnated Bronze |
| Copper |
87,5 - 90,5 |
| Iron |
1.0 Maximum |
| Lead |
- |
| Carbon |
1,75 Maximum |
| Tin |
9.5 - 10,5 |
| Acid insolubles (maximum) |
- |
| Aluminum |
- |
| Total other Elements (maximum) |
0,5 |
| Physical and Mechanical Properties |
| Density (gm per cu cm) |
6,4 - 6,8 |
| Porosity (percentage by oil volume) |
19 minimum |
| "K" Strength Constant |
26500 |
| Tensile Strength (PSI) |
14000 |
| Elongation (percent in one inch) |
1 |
| Yield Strength in Comp (PSI) |
11000 |
| Comparable Specifications |
| A.S.T.M |
B-438-70 |
| Gr. 1 type II |
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Military |
Mil -B-5687C |
| Type 1. Comp. A |
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MPIF |
CT-0010-R |
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SAE - New |
841 |
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- Old |
Type 1 - Class "A" |
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Machining |
| In machining Oil impregnated bronze |
| it should be remembered that the |
| cutting tool must be sharp. For this |
| reason tungsten carbide tooling is |
| recommended as it holds cutting edge |
| much longer. |
| This preserves the openpore from |
| which oil can flow freely. A dull tool |
| will smear the pores, greatly lessening |
| the self lubricating qualities in the material. |
| After final machining it is advisable to |
| immerse the bearing in oil, thus |
| allowing the bearing to re-absorb |
| the oil lost in the machining process. |
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