Premier Manufacturing 330 & 330A Hinge Assemblies Heavy-Duty Truck Hinges for 2-1/2β Round Tubing Brand: Premier ManufacturingCategory: Hinge Assemblies Product Overview The Premier 330 and 330A hinge assemblies are built for strength, reliability, and durability. Designed to fit 2-1/2 inch round tubing, these heavy-duty hinges support up to 100,000 lbs. gross trailer weight (per pair) and eliminate metal-on-metal wear by riding fully on rubber or polyurethane bushings. Key Features For 2.5" (64 mm) round tubing 100,000 lbs. max trailer weight (pair) Rubber or polyurethane bushing options Premier's exclusive adjustable hinge design Industry-leading wear resistance and strength Model & Part Numbers Model # Part # Description Bushing Type 330 10000948 Pair Hinges, Rubber Bushings Rubber 330A 10000950 Pair Hinges, Poly Bushings Polyurethane Parts Included per Hinge 321B Bolt 321C Locknut 321D Flat Washers (2) 344 or 344A Bushing 350 Bracket 351 Bolt/Nut (2) 352 Taper Pin 356 Housing 359 Flange Optional Accessories 344 Rubber Bushing 344A Polyurethane Bushing Why Choose Premier Hinges? Premier Manufacturing is the only company offering adjustable hinge assemblies in the industry. With heavy-duty designs and no metal-to-metal contact, these hinges are ideal for severe-duty trucking applications. Built to last, they are rigorously tested through both digital simulations and real-world destructive testing. Equipment Selection Guidelines Determine your gross trailer weight (GVWR of all towed units) Measure your maximum tongue weight Add a margin of safety based on usage and environment Browse the Premier catalog using your application needs π Need help choosing the right hinge assembly?Call us at 1 (800) 374-6488 or chat with a TTP specialist online.