THE WHIRLING OF SHAFTS

A bench top unit for clearly demonstrating the modes of oscillation and resonance of rotors with continuous mass distribution. Allows investigation of critical whirling speeds under different end conditions using rotor shafts of different lengths and diameters.

• Encoded electric motor with speed control: 60–5800 rpm
• Digital speed indicator
• Drive via elastic (universal) coupling; low friction bearings throughout
• Silver steel rotor shafts: 3, 5 and 6 mm diameters, different lengths
• Self-aligning bearings for free end conditions
• Roller bearings for fixed end conditions (three end condition variations achievable)
• Adjustable safety/support rings
• Transparent protective cover
• Micro switch power cut-off