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OILITE

OILITE is a brand historically associated with self-lubricating bronze bearings, a technology developed in the early 20th century to provide maintenance-free operation in rotating and sliding applications. The brand's core product is Oilite bronze, a porous sintered material that retains lubricating oil within its structure, allowing continuous lubrication during operation. This material is typically manufactured to SAE 841 specifications, a standard bronze composition for sleeve bearings. OILITE products are used across industrial machinery, automotive, and consumer equipment where access for relubrication is limited or where oil retention is beneficial.

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About OILITE

OILITE is a brand historically associated with self-lubricating bronze bearings, a technology developed in the early 20th century to provide maintenance-free operation in rotating and sliding applications. The brand's core product is Oilite bronze, a porous sintered material that retains lubricating oil within its structure, allowing continuous lubrication during operation. This material is typically manufactured to SAE 841 specifications, a standard bronze composition for sleeve bearings. OILITE products are used across industrial machinery, automotive, and consumer equipment where access for relubrication is limited or where oil retention is beneficial.

3G Electric supplies a range of OILITE sleeve bearings and related components, covering both inch and metric dimensions. The product line includes plain and flanged sleeve bearings, discs, and rods. Materials include sintered bronze (SAE 841) and engineering plastics such as PTFE and Vespel SP-21. Bronze bearings are available with yield strengths up to 11,000 psi and maximum PV ratings of 50,000 lb/sq in-fpm. Operating temperature ranges vary by material: bronze bearings typically operate from -35°F to 300°F, while PTFE bearings can handle -325°F to 500°F. Plastic sleeve bearings are offered for heavy-load and chemical-resistant applications. The inventory includes over 1,100 SKUs, with sizes ranging from small bore diameters to larger metric and inch configurations. Many items are sold in packs of 5 or 10.

For technical buyers, OILITE bearings offer self-lubrication, which reduces maintenance requirements in hard-to-reach locations. The porous bronze structure provides a reservoir for oil, and the material's yield strength and PV rating define its load and speed capabilities. Flanged versions allow for axial location, while plain sleeves are used in simple rotary or oscillating joints. Plastic variants address chemical exposure or elevated temperatures where bronze may not be suitable. 3G Electric supports the OILITE line with datasheets, specification details, and logistics for global delivery. The catalog includes dimensional tolerances, such as outside diameter tolerances of +0.03 in/+0.04 in for certain bronze discs, allowing engineers to select components that meet fit and clearance requirements. This range of materials and configurations makes OILITE suitable for pumps, conveyors, processing equipment, and other machinery where reliable, low-maintenance bearing performance is needed.

Common Applications

  • Industrial pumps — OILITE PTFE sleeve bearings (SKU 788P80) for chemical and heat resistance in pump assemblies.
  • Conveyor systems — OILITE SAE 841 bronze flanged sleeve bearings (SKU 788TN0) for rotating shafts requiring axial location.
  • High-speed rotating equipment — OILITE bronze discs (SKU 56FT78) with 11,000 psi yield strength for bushing applications.
  • Processing equipment — OILITE Vespel SP-21 sleeve bearings (SKU 788PL2) for heavy loads and elevated temperatures.
  • Metric machinery — OILITE metric flanged sleeve bearings (SKU 788U18) with 25 mm bore for direct replacement.
  • General purpose rotating or oscillating joints — OILITE SAE 841 bronze sleeve bearings (SKU 788RU4) with 50,000 lb/sq in-fpm max PV.

Frequently asked questions

Common questions about OILITE from 3G Electric.

What is the maximum PV rating for OILITE SAE 841 bronze sleeve bearings?

OILITE SAE 841 bronze sleeve bearings, such as SKU 788RU4, have a maximum PV rating of 50,000 lb/sq in-fpm. PV (pressure-velocity) indicates the combined load and speed capability of the bearing. This rating helps engineers determine suitable operating conditions for continuous or intermittent use. The self-lubricating bronze structure retains oil, which supports the PV rating by maintaining a lubricating film. For applications exceeding this rating, consider alternative materials or consult the datasheet for specific limitations.

What temperature range do OILITE PTFE sleeve bearings support?

OILITE PTFE sleeve bearings, such as SKU 788P80, operate within a temperature range of -325°F to 500°F. This makes them suitable for extreme temperature applications where standard bronze bearings may not perform. The PTFE composition also provides chemical resistance, making these bearings appropriate for pumps, conveyors, and processing equipment exposed to aggressive media. The bearings are available in white color and come in packs of 10. Always verify the specific operating temperature against the application's requirements.

Are OILITE flanged sleeve bearings available in metric sizes?

Yes, OILITE flanged sleeve bearings are available in metric dimensions. For example, SKU 788U18 has a 25 mm bore, 30 mm outer diameter, and 25 mm length. It is made from SAE 841 bronze and operates from -35°F to 300°F. Metric flanged bearings provide axial location and are used in metric machinery. The product is sold in packs of 5. 3G Electric stocks both inch and metric OILITE bearings to support global equipment standards.

What is the yield strength of OILITE bronze discs?

OILITE bronze discs, such as SKU 56FT78 and SKU 56FT79, have a yield strength of 11,000 psi. These discs are made from self-lubricating bronze and are designed for high-speed applications. The yield strength indicates the material's ability to withstand stress without permanent deformation. The discs feature an outside diameter tolerance of +0.03 in/+0.04 in, ensuring consistent fit. They are available in various lengths, such as 2 in and 3 in, and are used in bushings and bearing applications.

What materials are used in OILITE plastic sleeve bearings?

OILITE plastic sleeve bearings are available in materials such as PTFE and Vespel SP-21. PTFE bearings, like SKU 788P80, offer chemical and heat resistance for temperatures up to 500°F. Vespel SP-21 bearings, such as SKU 788PL2, are designed for heavy-load and temperature-resistant applications. These plastic bearings are used where bronze may corrode or where electrical insulation is required. They come in various bore and OD sizes, with some sold in packs of 10. Selection depends on load, speed, temperature, and chemical exposure.

Does 3G Electric supply OILITE products?

Yes — 3G Electric (S) Pte. Ltd. supplies OILITE products. We stock the OILITE catalog and supply genuine factory-original products with full manufacturer warranty and technical support.