The GGB sealed bearing cartridge (SBC) eliminates grease lubrication and downtime.No one wants machine downtime, even if it is to lubricate a joint.When industrial vehicles are down, especially for a difficult repair, the situation reduces the owner’s bottom line.One such time-consuming and costly repair is bearing replacement besides scheduled lubrication (re-greasing). To address such situations, GGB, formerly Glacier Garlock Bearings, developed a sealed bearing cartridge (SBC) that gives off-road and construction equipment OEMs a maintenance-free and environmentally friendly alternative bearing to conventional greased bronze, hardened steel and rolling-element bearings for demanding applications.GGB is the world’s leading manufacturer of polymer bearings with almost 50 years of experience in providing self-lubricated bearing solutions. It is also the inventor of DU® and DX®, the global industry standards for metal-backed, polymer plain bearings. A division of EnPro Industries USA, GGB has more than 30 years of experience in the manufacture and formulation of class-leading, no compromise, self-lubricating, maintenance-free filament wound plain bearing products, with an established history of successful applications across a wide spectrum of industries.At the heart of GGB SBCs are GGB’s GAR-MAX® bearings, the leading filament wound bearing and sold throughout the world, and GGB’s High Strength GAR-MAX (HSGTM) filament wound bearing.GGB SBCs provide a sealed, grease-free plain bearing unit to meet the demanding performance and economic requirements of your equipment.Customer benefits Cost savings come because the equipment does not have to be taken out of operation to be serviced or for re-greasing.The cost of a lubrication system is eliminated and there are no recurring maintenance costs.Also, the equipment owner does not have to use a potentially environment-harmful lubricant, or worry about spills.GGB worked with major off-highway OEMs and the Advanced Manufacturing Institute (AMI) at Kansas State University to prove that its sealed bearing cartridges outperform greased, hardened-steel bearings in several applications.The mission of AMI is to provide an array of resources to people and companies on advanced technologies.The test conditions simulated an abusive field application and heavy contamination by combining sand, dirt and water. The tests also focused on conditions with bearing working pressures up to 7,500 psi, oscillating motion speeds that averaged 20 degree/second and roughly 575 cycles per hour. A baseline test determined the duration of the GGB sealed bearing test.The average wear of the sealed bearing cartridge was 0.003 inch, as compared to an average wear of 0.022 inch for the traditional bushing, though the GGB bearing cartridge was tested about 2.5 times longer than the greased hardened-steel bushing (600,000 cycles compared to 220,000 cycles).If properly sealed, the ungreased GGB sealed bearing cartridge SBCs are the best alternative to a sealed and greased hardened-steel or bronze bushing in severe work environments. Any OEM using the sealed bearing cartridges in its equipment should follow GGB’s recommended design practices for a successful solution.Advantages of the GGB sealed bearing cartridges •Maintenance free operation-self lubricating;•Environmental friendly-no grease required;•High load capability-up to 90,000 lbf/in (620 Mpa);•Excellent tolerance to shock and edge loading;•Superior wear rate and bearing life;•Dimensional stability, low water absorption-no swelling;•Excellent corrosion resistance;•Sealed to exclude contaminants from the bearing;•No galling of shaft/pin;•Secure and simple installation;•Elimination of costly and complex automated greasing systems.