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KI 110 Crank and Connecting Rod Apparatus
Education / GUNT Hamburg / Engineering Mechanics and Machine Elements / Dynamics /

This benchtop 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. Crank radius and connecting rod length can both be adjusted, each have 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 metal handles make the unit easier to carry.


Learning Objectives / Experiments

- Crank drive with fixed cylinder
- Crank drive with swivelling cylinder


[1] Benchttop experiment on crank drives, with either fixed or swivelling cylinder
[2] Ball bearing mounted crank disc, anodised aluminium, 3 different crank radii
[3] Connecting rod black anodised aluminium with 3 different lengths
[4] Painted base plate with metal carrying handles
[5] lxwxh 380x280x60mm


Technical Data

Crank radius

- 25mm

- 37.5mm

- 50mm
Connecting rod length

- 120mm

- 140mm

- 160mm


Dimensions and Weight
l x w x h : 380 x 280 x 60 mm
Weight : approx. 3 kg
Scope of Delivery
1 demonstration model, complete 
1 instruction manual
Order Details

041.11000  KI 110  Crank and Connecting Rod Apparatus