R - Hastings

OIL CONTROL RINGSTHREE-PIECE FLEX-VENT ® OIL RINGSOIL CONTROL RAILSOIL CONTROL EXPANDERSHastings invented the three-piece oil control ring with patented Flex-Vent® technology.Flex-Vent has become an industry standard and is offered in a wide range of designs and sizes.We also designed and patented the Hyper-Vent® oil control ring.1070 Steel• Tough, wear resistant, high carbonspring steel• Resists fatigue and permanent set• Used to manufacture oil ring rails201 and 301 Stainless• Chromium-nickel stainless steels capableof attaining high tensile strengths throughcold working• Corrosion resistant• Can be nitrided• Used to manufacture Flex-Vent expandersThe Flex-Vent expander oil ring isenergized by two steel rails, which receiveuniform pressure from the expander toassure positive oil control. The three-piecedesign allows rails to be manufacturedwith a small cross-sectional area for betterconformability to the bores of today’slow-tension, low-friction engines. Therails thin wall contact also allows for quickbreak-in time. Hastings rails are normallychrome plated to extend engine life.The Flex-Vent expander regulates thetension of the oil control ring assembly.Other advantages include:• Both straight and angled tabs forbetter side sealing• Step pad for increased expander stiffness• Designed to conform to cylinder wall withuniform pressureFor new application solutions, ourparametric design for product and toolingenables rapid prototyping.12800-776-1088 • www.hastingsmfg.com