Crank mechanism kit Vibrations on crank drives Features - vibrations of crank drives - bearing clearance or slack in oscillating machine components Learning objectives/experiments - experimental modal analysis of mechanical systems - familiarisation with the envelope analysis - influence of bearing clearance and shock impact - inconsistent torque characteristic - wear measurement on piston rods - understanding and interpreting frequency spectra - use of a computerised vibration analyser - in conjunction with PT 500.15 -- transmission of alternating torque in toothed gearing mechanisms - in conjunction with PT 500.14 or PT500.15 -- influence of gas forces on the vibration spectrum Specification [1] investigation of the vibrations of crank drives [2] crank drive with adjustable stroke [3] interchangeable bearing bushes permit simulation of bearing clearance [4] springs simulate gas forces [5] can be used together with gear damage accessory set PT 500.15 [6] belt drive PT 500.14 or gear unit PT 500.15 required for experiment with gas forces [7] accessory set for PT 500 machinery diagnostic training system [8] stackable storage system to house the components Technical data Stroke: 50 - 75 - 100mm Balance mass total - 490g, rated for operation with 50mm stroke Bearing clearance: 0...1mm Pressure spring - relaxed length: 170mm - spring stiffness: R=0,55N/mm LxWxH: 600x400x170mm (storage system) Weight: approx. 8kg