This experimental unit demonstrates the conversion of smooth rotary motion into reciprocating motion.
The input angle is set on a ball bearing mounted crank disc made of anodised aluminium and read off on an angle measuring scale integrated into the base plate. A millimetre scale is fitted for the outlet stroke. The crank radius can be adjusted in three positions.
The simple insertion of a bolt enables the swivelling cylinder to be locked, thus a crank drive with either a fixed or oscillating cylinder can be demonstrated.
The components are attached to a solid, painted base plate. Two handles make the unit easier to carry.
Learning Objectives / Experiments
- crank drive with fixed cylinder - crank drive with swivelling cylinder
* Crank drive can be demonstrated either with a fixed
 experimental units on crank drives, with either fixed or swivelling cylinder  ball bearing mounted crank disc, anodised aluminium, 3 different crank radii  connecting rod black anodised aluminium  painted base plate with handles