INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1 COUPLING COMPARISON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2 QUADRA-FLEX® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-4 — C-24 Sleeve Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-7 — C-8 Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-9 Sleeves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-14 Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-15 — C-19 Keyseat Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-18 Spacer Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-20 — C-23 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-24 CHAIN COUPLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-25 — C-27 Bored-To-Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-26 QD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-26 Taper Bushed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-26 Coupling Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-27 Plain Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-27 Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-27 JAW COUPLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-28 — C-30 Horsepower Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-29 ML & MS Hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-30 ML & MS Spiders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-30 Stock Sizes

Coupling Comparison Couplings Comparison Chart Connecting Medium ROLLER CHAIN ELASTOMERIC SPIDER Martin FLEX ELASTOMERIC TIRE QUADRA FLEX® ELASTOMERIC SLEEVE Allowable Misalignment Bore Range Shock Load Capacity Vibration Dampening Martin FLEX With Hytrel® Spider Neoprene Element TPR Sleeve With EPDM Sleeve

Whatever Your Need For Couplings — Martin Has Them Martin-Flex® exible couplings Martin Offers Two Complete Lines of Jaw Couplings — One for Greater Horsepower and One for Interchngeability. smoothly transmit power while compensating for shaft misalignment to 4°, parallel misalignment to 1/8” and end oat to 5/16”. The two piece ange design provides quick and easy installation and the elastomeric element absorbs shock and torsional vibration through a wide temperature range. For the Most Complete Line of Chain Couplings Available. Martin QUADRA-FLEX ® • A Proven Design Which Offers Long Life,...

Quadra-Flex® FLEXIBLE COUPLINGS Stocked Nationwide In Sizes 3 Through 16 Styles J, S, B, and SC Spacers

Martin QUADRA-FLEX Couplings, Non Lubricated, Maintenance Free, Easy and Quick Installation Handles All Combinations of Shock, Vibration, and Misalignment QUADRA-FLEX® couplings absorb parallel misalignment without wear and with minimal loss of energy. The amount of parallel offset handled varies by size from .015″ on the size 5 up to .062″ on the size 16. This minimizes the radial loads on bearings when parallel misalignment occurs. Due to the exing characteristics of the sleeve and the locking action of the teeth, QUADRA-FLEX® couplings easily handle angular misalignment up to 1 degree without...

Styles Available in Three Styles COUPLINGS Bored-to-size anges are manufactured for a slip t on standard shafting. Available from stock in a wide range of shaft sizes. Manufactured from high strength cast iron to t standard QD bushings in sizes 6 thru 16. Fast Coupling Disassembly Type SC Spacer Flange Martin offers the rst true drop-out spacer assembly for the QUADRA-FLEX ® SC Spacer Couplings feature all standard spacing requirements for the pump industry. Spacer sizes range from sizes 4 thru 14. 4JSC spacer coupling. The center portion of the spacer can be taken out, just as in the 5SC thru...

Sleeve Selection QUADRA-FLEX® Nomenclature SINTERED STEEL, BORED-TO-SIZE CAST IRON, BORED-TO-SIZE CAST IRON, QD BUSHED SPACER COUPLING FLANGES TPR – 1-PIECE SOLID, THERMOPLASTIC TPR – 1-PIECE SPLIT, THERMOPLASTIC TPR – 2-PIECE W/RETAINING RING EPDM – 2-PIECE W/RETAINING RING NEOPRENE – 2-PIECE W/RETAINING RING HYTREL – 1-PIECE SOLID HYTREL – 2-PIECE # — #6 Currently Supplied in Cast Iron Hubs – (For SC anges) Type REGULAR LENGTH SHORT LENGTH QUADRA-FLEX® couplings come in a variety of styles and designs to meet specic customer needs. These include anges and sleeves of various types and materials....