Bearing Friction TM 232

Bearing Friction

Type: TM 232
Name: 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 material

  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


* Sliding bearing friction with different bearing

   materials; comparison with rolling bearing friction


[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] storage system to house the components


Technical Data

Sliding bearing half-shell material
- GG-25
- gunmetal
- PTFE (Teflon)
Grooved ball bearing: type 6203
Bearing journal of shaft: d=17mm

- d=300mm
- weight: 22,2kg

- 1x 1N (hanger)
- 5x 1N
- 1x 2N
- 3x 5N

Base plate, LxWxH: 250x200x12mm


Dimensions and Weight

LxWxH: 200x330x300mm
Weight: approx. 30kg

LxWxH: 290x140x130mm (storage system)

Scope of Delivery 1 experimental unit
6 bearing shells
2 rolling bearings
1 set of weights
1 storage system
1 set of instructional material Order Details 040.23200  TM 232  Bearing Friction