Go to GlobalSpec.com Home
Toolbar   The Engineering Toolbar
The Ultimate Resource for Engineering and Technical Research. (Learn More)

White Paper Download: Bearings

From Stock Drive Products/Sterling Instrument - SDP/SI
 

 
Sintered-metal self-lubricating bearings are based on powder-metallurgy technology. They are economical, suitable for high production rates and can be manufactured to precision tolerances. General properties of porous-metal bearing materials have been described in Machine Design magazine (Vol. 54, #14, June 17, 1982, pp. 131-132), with whose permission the following material is reprinted: Sintered-metal self-lubricating bearings "are widely used in home appliances, small motors, machine tools, aircraft and automotive accessories, business machines, instruments, and farm and construction equipment. Most porous-metal bearings consist of either bronze or iron which has interconnecting pores. These voids take up 10% to 35% of the total volume. In operation; lubricating oil is stored in these voids and feeds through the Interconnected pores to the beating surface. Any oil which is forced from the loaded zone of the bearing is reabsorbed by capillary action. Since these bearings can operate for long periods of time without additional supply of lubricant, they can be used in Inaccessible or inconvenient places where relubrication would be difficult. Many variations are possible to meet specific requirements.

Products & Services
Needle roller bearings are designed for radial load applications where a low profile is desired. Search by Specification | Learn more about Needle Roller Bearings
Bearing rings, housings and flanges are bearing components that are used in the assembly of many different types of bearings. Bearing rings, which are sometimes referred to as bearing races, guide a rolling element such as a ball, roller, or needle roller. Bearing housings and flanges hold an insert bearing in position, support the load transferred from the bearing shaft through the bearing, and are used to mount the bearing to a surface. Search by Specification | Learn more about Bearing Rings, Housings and Flanges
Linear shafts are elongated, rod-shaped devices that provide linear or rotary motion for power transmission applications. Search by Specification | Learn more about Linear Shafts
Linear bearings are used in applications where a component needs to be moved along a straight line with high accuracy. Search by Specification | Learn more about Linear Bearings
Plain bearings and sleeve bearings (also referred to as bushings or journal bearings) are used to constrain, guide or reduce friction in rotary or linear applications. They function via a sliding action. Search by Specification | Learn more about Plain Bearings and Sleeve Bearings

Product Announcements
Prosino S.r.l. - Rings for fiber glass twing frames
Prosino manufacture sintered metal rings for fiber glass twisting frames that sells to OEM and final users all over the world... (read more)
Daemar Inc. - Dryslide™ Bushings
Self-lubricated dry sliding bearings. A composite structure consisting of steel backing, sintered bronze interlayer, PTFE anti-wear surface. Options include: lead-free, bronze or stainless steel... (read more)
RBC Bearings - FIBERGLIDE® Self-Lubricating Bearings
FIBERGLIDE® bearings are completely selflubricating and normally run dry. They are unique in their ability to resist cold flow under extremely high loads... (read more)
Jason Finishing Group-Osborn/JacksonLea - Solid Lubricant Idler Rollers
Osborn's latest innovation in the Load Runner line is the addition of MicroPoly® solid lubricant to the bearing assemblies. It is now available for special Load Runners orders, for hard-to-service or... (read more)
Magnus Mobility Systems, Inc. - Bearings
The Magnus Companies offer the highest quality bearings and housings, either from our extensive in-stock inventory or from our ability to custom fabricate to exact specifications in quantities from... (read more)
Magnus Mobility Systems, Inc. - Wheels
Rubber, Plastic, Polyurethane, Metal, and All types of Wheels... (read more)
Prosino S.r.l. - Raw Materials
Prosino is specialized with the working operations of 100cr6 bearings steel being rich in carbon and chrome. This type of steel transfers important properties to rings with high wear resistance,... (read more)
 

Topics of Interest
BEARINGS AND LUBRICATION Very large horsepower (kilowatt) motors are generally supplied with oil-lubricated sleeve bearings with oil supplied from a reservoir. In some cases, pressurized oil... (Read More)
The effects of the formation of nanoscale pores, voids, and porous layers in solids after a high-dose implantation of light inert gases have been known for a sufficiently long time [Donnelly, S. E.,... (Read More)
Q: "How Do Self-Lubricating Composite Bearings Compare To Other Bearing Materials?" A: The Polygon PolyLube™ bearing can be used as a replacement for traditional powdered metal bearings where... (Read More)
Brass comes with good strength, excellent high-temperature ductility and reasonable cold ductility, good conductivity, excellent corrosion resistance, good bearing properties and low magnetic... (Read More)
Q: "What Does Self-Lubrication Mean? A: For Polygon's PolyLube™ fiber-series self-lubricating bearing, a proprietary form of PTFE is used. In the form PTFE is used in the PolyLube™ fiber... (Read More)