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Martin Sprocket & Gear Martin 1110M20UPC: 697950915364 | UNSPSC: 31163003 | GTIN:Couplings > Grid Couplings > Grid Couplings - CompleteMartin Blue-Flex™ Grid Coupling Assembly, Reboreable, 1.63 to 4.5 in Bore, 11-1/4 in OD, 10.18 in Overall Length, 6.31 in OD Hub, 5 in Length Through Bore, 82500 in-lb Torque, 3000 rpm Maximum, 121 hp Power, Steel, 11-1/4 in H DimensionsSpecs:Length Through Bore: 5 inHub Size: 6.31 in ODTorque Rating: 82500 in-lbPower Rating: 121 hpBore Diameter: 1.63 to 4.5 inOutside Diameter: 11-1/4 inDimensions: 11-1/4 in HMaterial: SteelOverall Length: 10.18 inMaximum Speed: 3000 rpmType: ReboreablePackaging:Weight: 119.9 lbCertifications/Standards:ANSI Specified | B29.1 - 1975Warranty:Limited