A slinger flinger disc or oil rings can also be used to provide splash lubrication.
Oil slinger ring design.
An oil ring collar or a wick is typically used for supplying the oil to the bearing through the use of a pressurized system.
As it rotates oil is lifted from the sump and thrown onto the inside of the housing.
However pumps incorporating a two inch shaft operating at 3 600 rpm dn 7 200 would use oil rings sometimes called slinger rings to lift or spray the oil from a sump with its level maintained below the bearing.
Api standard 610 2 10 under lubrication recommends the level to be from 12 to 25 inches from the lower edge of the flinger or above the lower edge of the bore of the oil ring.
Pumps using oil rings can suffer the following lubrication problems.
Purge mist lubrication utilizes the same principles of pure mist but a reservoir of oil in the housing exists.
The design of the bearing is vital for ensuring an effective process.
In a comprehensive paper the manufacturer described remedial actions which included grade 46 oil viscosity and oil rings made of high performance polymers bradshaw 2000.
Oil slinger design considerations and prior art the oil slinger disc arrangement is simple to understand.
Ensuring that the oil ring flinger is immersed at the correct oil level is crucial.
There is no reservoir of oil in the housing and oil rings are not used.
Less frictional heat results from lower oil levels figure 2 than from an oil level reaching the center of the bearing.
In pure mist lubrication the oil air mist is fed under pressure to the housing.
Instead of greasing the part a high speed journal bearing design relies on oil lubrication.
For high speed 3000 rpm and higher slinger discs or oil rings are commonly used due to the short re greasing interval exhibited with grease lubrication and the high heat generation due to churning seen with oil bath lubrication.
A disc is mounted inside the bearing housing and is driven by the pump shaft.
The disc outer edge is immersed some depth into the oil.
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Ring oilers were used for medium speed applications with moderate loads during the first half of the 20th century.
A ring oiler or oil ring is a form of oil lubrication system for bearings.
