Bearing

Self-lubricating resins can make plane bearings quiet, durable, and put them on the FDAapproved list.

Solid bronze, porous bronze sinter, and filled polytetrafluoroethylene (PTFE) make up the three layers of DP4B bearings.

NU and NX plain bearings consist of a sintered-bronze substrate plated on the OD with low-carbon steel and sealed on the ID with a polymer.

FAG Generation C deep-groove ball bearings feature optimized ball and raceway surfaces and improved osculation between the rolling elements and the raceways that are said to cut noise by 50% and provide 35% less friction.

Thomson MultiTrac Ball Bushing bearings permit steady-state travel at up to 10 fps and accelerations to 450 fps2 in linear-motion systems.

They are good enough for NASCAR engines. Bonded bearing surfaces are coatings made from high-performance polymers reinforced with hard nanosized particles.

Flexible rotors and thin lubricant films lead to noise and vibration.

Take off-center forces into account when estimating the life of linear-motion systems.

New metal-polymer plain bearings helped solve a wear problem in precision joints that let patients relearn how to walk.

Consider real-world factors when predicting the life of linear-motion systems.

The SONL oil-lubricated bearing housing from SKF USA Inc., Kulpsville, Pa. (skf.com), uses oil-bath cooling for operations in which bearing temperatures might otherwise exceed 180?F.

Researchers at Purdue University working with the U.S. Air Force have developed wireless sensors strong enough to survive inside operating jet engines where temperatures can climb to 572°F.

The Extra-Thin Metric Series bearings come in flanged and unflanged versions with 10 to 50-mm bore diameters.

Electrically insulated bearings protect against bearing damage caused by electrocorrosion — the passage of electrical current.

Spherical roller bearings handle heavy bidirectional radial and axial loads and compensate for misalignment between the shaft and housing or shaft deflection.