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The user must determine suitability for a particular application.", "Attribute38": "Torque ratings for the couplings are based on the physical limitations/failure point of the machined beams. Under normal/typical conditions the hubs are capable of holding up to the rated torque of the machined beams. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the rated torque of the machined beams. Please consult technical support for more assistance.", "AttributeKey00": "Bore (B1)", "AttributeKey01": "Small Bore (B2)", "AttributeKey02": "B1 Max Shaft Penetration", "AttributeKey03": "B2 Max Shaft Penetration", "AttributeKey04": "Outer Diameter (OD)", "AttributeKey05": "Bore Tolerance", "AttributeKey06": "Length (L)", "AttributeKey07": "Recommended Shaft Tolerance", "AttributeKey08": "Forged Set Screw", "AttributeKey09": "Screw Material", "AttributeKey10": "Hex Wrench Size", "AttributeKey11": "Screw Finish", "AttributeKey12": "Seating Torque", "AttributeKey13": "Number of Screws", "AttributeKey14": "Dynamic Torque Reversing", "AttributeKey15": "Angular Misalignment", "AttributeKey16": "Dynamic Torque Non-Reversing", "AttributeKey17": "Parallel Misalignment", "AttributeKey18": "Static Torque", "AttributeKey19": "Axial Motion", "AttributeKey20": "Torsional Stiffness", "AttributeKey21": "Moment of Inertia", "AttributeKey22": "Maximum Speed", "AttributeKey23": "Full Bearing Support Required?", "AttributeKey24": "Zero-Backlash?", "AttributeKey25": "Torque Wrench", "AttributeKey26": "Recommended Hex Key", "AttributeKey27": "Material Specification", "AttributeKey28": "Temperature", "AttributeKey29": "Finish Specification", "AttributeKey30": "Manufacturer", "AttributeKey31": "Country of Origin", "AttributeKey32": "Weight (lbs)", "AttributeKey33": "UPC", "AttributeKey34": "Tariff Code", "AttributeKey35": "UNSPC", "AttributeKey36": "Note 1", "AttributeKey37": "Note 2", "AttributeKey38": "Note 3", "AttributeKey39": "Prop 65", "DimensionUnit": "inch", "Extra Product Name": "PSR18-6-6-SS, 3/8\" x 3/8\" Four Beam Coupling, Stainless | Ruland", "Weight": "0.337200", "WeightUnit": "lbs", "Weight_Attrib": "Weight (lbs)", "diameter": "1.125", "height": "1.125", "height_Attrib": "Outer Diameter (OD)", "keywords": "PSR18-6-6-SS, Beam Coupling, Four Beam Coupling", "length": "1.5", "length_Attrib": "Length (L)", "moq": "1", "MPN": [ "PSR18-6-6-SS" ], "multiple": "1", "qtyInStock": "0", "SKU": "PSR18-6-6-SS", "snippet": "Ruland part number PSR18-6-6-SS is a 303 stainless steel four beam coupling with 3/8\" x 3/8\" bores. 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