jbj Techniques offer a wide variety of superior disc coupling products designed tomeet the application needs of today’s worldwide power transmission market. Using advanced design techniques, implementation of Finite Element Analysis, and extensive testing of materials, an innovative disc pack profile design has been developed, revolutionary to traditional disc pack designs found in themarket. This disc pack can accommodate 1/2° to 1-1/2° of angular misalignment . Lovejoy disc packs are manufactured using high grade stainless steel (AISI-301), ensuring high strength, high endurance to fatigue, and resistance to most environmental conditions. These disc couplings utilize unitized disc packs with both 6 or 8 bolt designs. The 8 bolt design can transmit greater torque than the 6 bolt design, however, it is not able to accommodate as much angular misalignment. Lovejoy couplings can be fitted with overload bushings to protect the disc pack during momentary torsional overloads. Offered in a variety of configurations to fit most applications. In addition, jbj Techniques can customize a coupling to meet many special requirements such as close coupled, dropout centres, electrical insulation, vertical mounting, and safety couplings. A notable design offered by Lovejoy is the reduced moment (DI Type) coupling that meets the anti-flail device requirements mandated in API-610 while offering a low weight and short centre of gravity to bearing distance. The design and manufacture of Lovejoy disc couplings is integrated into a certified Quality System according to ISO-9001 to fulfill the high quality requirements of Lovejoy customers. Advantages of the Lovejoy Disc Coupling » Eliminates the need for lubrication and coupling maintenance » Coupling can be inspected without disassembly » Condition of disc packs can be inspected with a strobe light while themachine is running. Note: It is not recommended that couplings be operated without coupling guards. » Easy to assess equipment misalignment. » Torsionally rigid without any backlash. » No wearing parts. » Resistance to harsh environments. » Long life when properly sized and aligned. » High power density (higher torque for a given outside diameter). » Lovejoy supports theAPI-610 Standard up to 3,800 RPM. » Unitized disc packs ensure repeatability necessary for meeting the balance and piloting requirements as mandated byAPI-610. Available with Overload Bushings to protect the coupling frommomentary torque overloads. » Prevents the disc pack from being plastically deformed. » Allows for shorter BSE (shaft separation) because bolts can be turned to face inward. » Special orientation of bolts allows the bolts to be tightened using a torque wrench instead of nuts (Normal is to tighten nuts with torque wrench). Mechanical Power Transmission Disc Couplings Overview 4 www.jbj.co.uk/disc-couplings.html #DriveLineHarmony
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