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 TM 232 Bearing Friction
 Technical Description

TM 232 provides experiments relating to friction on sliding and rolling bearings. Bearing shells in various materials serve as sliding bearings. Bearing forces are generated by the dead-weight of a heavy flywheel. A torque is applied by means of weights which correspond to the frictional torque when the motion begins. When the rolling bearings are used the bearing friction is very low. In this case the flywheel can be used for fundamental experiments in rotational dynamics.

The unit is intended for mounting on a laboratory wall.

Learning Objectives / Experiments

- Determination of friction torque on sliding bearings: various meterial

pairings by means of interchangeable bearing shells
- Determination of the friction torque on a rolling bearing
- Comparison between sliding and rolling bearing
- Fundamental experiments in rotational dynamics

 Features

* Sliding bearing friction with different bearing

materials; comparison with rolling bearing friction

 Specification [1] Experiment in sliding bearing friction with various material pairings and comparison with rolling bearings[2] 3 different bearing materials for sliding bearing shells[3] Stainless steel shaft [4] Flywheel of galvanised steel[5] Drive by cable drum and weight set[6] Base plate of anodised aluminium[7] Experiments in rotational dynamics possible[8] Box to house the components Technical Data Sliding bearing half-shell material- GG-25- gunmetal- PTFE (Teflon) Grooved ball bearing: type 6203Bearing journal of shaft: d=17mm Flywheel- d=300mm- weight: 22,2kg Weights- 1x 1N (hanger)- 5x 1N- 1x 2N- 3x 5N Base plate, l x w x h: 250x200x12mm Dimensions and Weight l x w x h: 200x330x300mmWeight: approx. 30kg Scope of Delivery 1 experimental unit 6 bearing shells2 rolling bearings1 set of weights 1 storage box with foam inlay1 set of instructional material Order Details 040.23200  TM 232  Bearing Friction