Ruland Flexible Coupling Flector Angular 1° Axial 0.76mm Parallel 0.15mm JD21/33-85B

Ruland JD21/33-85B Flexible Coupling Flector offers precise mechanical power transmission with capability to compensate for angular misalignment up to 1°, axial misalignment up to 0.76 mm, and parallel misalignment up to 0.15 mm. Manufactured in the United States, this coupling features torque discs made from polyurethane spider material that effectively dampen impulse loads to protect motors and sensitive equipment from shock and vibration.

The coupling assembly consists of two aluminium hubs and a snap-fit spider torque disc, which must be ordered separately. Two hardness levels of spider material are available: 85 Shore A for optimal damping and 98 Shore A for superior torsional rigidity. The snap-fit design eliminates backlash while providing high torque capacity, and the fail-safe construction ensures continuous operation even if the spider element fails.

This flexible coupling is ideal for low to medium torsional rigidity and strength applications where electrical isolation is beneficial. The balanced design supports high bearing loads and moderate inertia, while accommodating minor angular, axial, and parallel misalignments.

Common industrial use cases include mechanical power transmission in manufacturing, automation, fluid power systems, and material handling equipment. The product supports reliability and longevity in demanding environments by minimizing shock and vibration transmission through the coupling assembly.

Package contents typically include two aluminium hubs per coupling; the polyurethane spider torque disc is not included and must be ordered separately. Polyurethane spider torque disc provides damping of impulse loads and shock minimization.

Available in two hardness levels: 85 Shore A for damping, 98 Shore A for torsional rigidity. Snap-fit spider design guarantees zero backlash and high torque capacity. Fail-safe operation ensures coupling continues functioning even if spider fails.

Assembly consists of two aluminium hubs per coupling, spider ordered separately. Effective for low to medium torsional rigidity and strength. Electric isolation capability in coupling design. Supports slight angular, axial, and parallel misalignments.

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