What are Oilite bearings?

Oilite is a brand of self-lubricating bearing that is made from metal alloys with pores that channel lubricants between the bearing itself and the shaft. It is manufactured from different types of material.

Where are Oilite bearings used?

The Oilite bearing is used in electric motors, aviation cargo systems, escalators, elevators, industrial meters, stage lighting, thermal imaging cameras, medical imaging equipment.

Do Oilite bearings need lubrication?

Whenever you service an Oilite Bearing/ Bushing, grease should never be used. These bearings were designed and manufactured only to use oil. Whether they are made of bronze or newer materials like Oil Impregnated Nylon, the only lubricant that should be used is oil.

Can you machine Oilite bearings?

– The sliding surface of a bearing should only be machined when absolutely necessary. Any machining will affect the surface porosity and could affect performance. – The bearing surface should never be ground as grinding will smear pores closed.

What does oil impregnated mean?

Impregnation – This process fills the pores of a sintered metal part with a lubricant. Heat Treating – This is the heating of a sintered metal part in a protective atmosphere and then oil quenching the part. The results are usually improved strength and hardness.

What is a bronze bushing?

Bronze is a versatile and commonly used material for bushings because it comes in many alloys and compositions. Bronze sleeve bushings or bronze bearings are hard and strong, as opposed to brass bushings, which are softer and more easily deform. Thus, bronze bushings have longer lifespans than brass bushing sleeves.

What is SAE 841?

SAE 841 Oil Impregnated Bronze Bearings from National Bronze Mfg are self lubricating and maintenance free. Manufactured through powdered metallurgy, this process gives the bearings tiny pores formed throughout the structure of the bearing.

What is sintered bronze?

They are rigid, temperature resistant and high strength parts formed through the process of sintering, or powder metallurgy. …

How do you impregnate bronze with oil?

Oil-Impregnated Bronze Bushings

1. Bronze powder is gravity fed into a die set which is the desired bushing size.
2. The powder particles in the part are then bonded together in a furnace.
3. This sintering procedure is the key to oil impregnation.

What are bronze bearings used for?

Bronze is still often used in ship propellers, submerged bearings, and in small electric motors. Bronze bearings are also very frequently used in agricultural machinery and construction equipment and applications.

What is the best bushing material?

Bronze Bushings Bronze remains a popular choice for bushings because it’s available in so many alloys and compositions, expanding its reach into even more applications. A bronze bushing is harder and less likely to break or deform than those made of other materials.

What is the temperature range of SAE 841?

Effective operating temperature range: -10 F <-> +200 …

Where can I find the Oilite bearings I Need?

Search for the specific Oilite product you need by clicking the small product image in the right column. Products include sleeves, flanges, thrusts, bar stock, and plates (where available). Oilite genuine products are made in the USA for a variety of industrial applications.

What causes an Oilite bearing to seize up?

When the vacuum is decreased, atmospheric pressure pushes the warm oil in. Higher temperature reduces viscosity and surface tension of both old and new oil. But if the bearing is seizing up, couldn’t this indicate that the voids in the bearing have sealed up, either by physical compaction or by the old oil getting sludgey?

What kind of oil is used in bearings?

Also known as Oilite® bearings. Increased iron content makes these bearings stronger and more resistant to shock loads than standard oil-embedded bearings; however they operate at lower speeds. For applications with frequent starts and stops, the oil in these bearings contains particles of slippery PTFE that lubricate the bearing during startup.

Which is better for bearings oil or graphite?

Graphite provides a layer of dry lubrication that can operate in high-temperature environments. Also known as Oilite® bearings. Increased iron content makes these bearings stronger and more resistant to shock loads than standard oil-embedded bearings; however they operate at lower speeds.