Ruland MBC33-16-16-A Miniature Bellows Coupling

Ruland MBC33-16-16-A is a high-stiffness miniature bellows coupling that joins two 16 mm shafts with zero backlash. It uses two anodized 2024-T351 aluminum hubs and a Type 321 stainless steel bellows, delivering a 33.3 mm outside diameter and 43.2 mm length, with a lightweight design that reduces inertia and supports speeds up to 10,000 RPM. The clamp-style ends accept 16 mm bores, are finished with sulfuric anodizing (MIL-A-8625 Type II, Class 2; ASTM B580 Type B black) and are RoHS3, REACH, and Conflict Minerals compliant, with production conducted in the USA at an ISO 9001:2015 facility. The design is balanced for low vibration at high speeds and specifies misalignment limits of 1.5° angular, 0.15 mm parallel, and 0.40 mm axial movement, making it well suited for precision servo and stepper drives, CNCs, and robotics.