Concrete Products

JUL 2012

Concrete Products covers the issues that attract producers of ready mixed and manufactured concrete focusing on equipment and material technology, market development and management topics.

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INNOVATIONS EQUIPMENT & PRODUCTS CONVEYOR BEARINGS A unique SKF Three-Barrier Solution for conveyor applications that are exposed to extremely harsh conditions introduces environmentally friendly products designed to increase bearing reliability and extend service life without the use of solid lu- bricants, auxiliary seals, or large quantities of grease. This solution ideally suits operations in the mining, cement and aggregates industries. The Three-Barrier Solution consists of four inter- PRESTRESS SUPPLY ADDS DIGITAL GAUGE A digital gauge option for Hercules stressing jacks is accurate, rugged, and built to withstand the harsh environment of a prestressing yard, according to Pre- stress Supply. Unlike analog gauges, the digital gauge cannot be shock loaded out of calibration. To make calibration easier, the load data can be stored in a laptop and reloaded into the jack at any time. The LCD readout screen is bright, can be easily read in direct sunlight, and designed to resist fading or discol- oration due to prolonged sun exposure. The gauge is available on both the Her- cules Model "B" and Model "C" jacks. Retrofit kits are also available to convert existing jacks in the field over to digital readouts. — Prestress Supply Inc., 800/328-8036, 800/282-7321 (in Florida); sales@psilakeland.com related components: Factory-sealed and upgraded SKF Explorer performance class spherical roller bearings, optimized split pillow block housings, PosiTrac Plus type seals for the housing, and 60 to 80 percent grease fill in- side the housing. The bearing is lubricated, sealed and mounted in- side the housing, which is then internally greased and sealed. This creates three layers (three barriers) of protection for the bearing during operation: The integral bearing seals keep the lubricant in and con- taminants out of the bearing cavity; the PosiTrac Plus seals in the housing protect against extremely fine contaminants and eliminate any need for ex- pensive auxiliary (such as taconite) seals; and, the grease packed into the housing on both sides of the sealed bearing complete the protection. — SKF USA Inc., www.skfusa.com SAFETY EYEWEAR Honeywell Safety Products launched Uvex Bayonet safety eye- wear, which combines high-performance protec- tion with comfortable, sport-inspired styling. The unique design of the eyewear provides substantial coverage and unobstructed vision for excellent im- pact protection and performance. Available in seven lens tints—clear, gray, amber, silver mirror, SCT-Reflect 50, SCT-Gray and SCT-Low IR—Uvex Bayonet is ideally suited for use in nearly any lighting application. Like all Uvex lenses, those found in Uvex Bayonet offer 99.9 percent protection from ultraviolet light. The eyeware is also available in two pro- prietary Uvex lens coatings: Supra-Dura and Uvextreme AF. Supra-Dura advanced anti-scratch coating delivers five times more scratch resist- ance than other coatings on the market, signif- icantly prolonging the life of the lens. Permanently bonded to the lens, Uvextreme meets ANSI-Z87.1-2010 and is certified to the re- quirements of the CSA Z94.3 standards for impact protection. — Uvex, 800/430-5490; www.uvex.us 72 | JULY 2012 WWW.CONCRETEPRODUCTS.COM

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