frictional forces between two sliding friction pairs

Description:

• In bearing and drive technology, dynamic friction occurs at the sliding and rolling points, which leads to power losses in the technical systems.
• Dynamic friction is differentiated into sliding, rolling and spinning friction.
• In dynamic friction, there is relative translation between the two bodies.
• The tribological system in TM 260.03allows a clear representation of the dynamic friction and an analysis of the frictional forces.
• The experimental unit contains a fixed pin that is pressed axially against a rotating disk as the friction pair.
• The contact force between the friction partners can be adjusted gradually up to a maximum of 80 N by means of a lever.
• The rotating disk is enclosed by an open cup that can be filled with different lubricants for the experiments.
• Different lubrication conditions can be studied, such as dry friction, water or oil lubrication.
• Pins made of different materials are included in the scope of delivery to study different friction pairings.
• The TM 260drive unit is required in order to conduct experiments.
• The experimental unit is mounted quickly and easily on the frame of the drive unit with quick-action chucks.
• The disk is driven by a clampable coupling between drive unit and gear unit.
• The display and control unit of the drive unit shows frictional force and speed and allows the continuous adjustment of the speed.
• The frictional force and the coefficient of friction can be determined in experiments.
• The frictional forces are measured by a force sensor.
• The wear can be determined precisely by measuring the change (reduction) in length of the pin.

Technical Details:

Specifications:

• frictional forces in pin and disk, which slide against each other, disk subjected to axial load
• quick and easy assembly of the experimental unit on the frame of the drive unit
• disk is driven by a clampable coupling between drive unit and gear unit
• fixed pin made of different materials: aluminium, brass or steel
• rotating disk made of hardened and ground stainless steel
• load on the pin via lever arm and stepped weights
• use of different lubricants, e.g., water or oil
• frictional force measured by force sensor
• displays of force and speed and speed adjustment on the drive unit

Technical Data:

• Load application device:
  • load: 80N
  • lever arm ratio: 2:1
• Disk:
  • Ø=50mm
  • hardened stainless steel, ground
• Pin, ØxH: 4x25mm:
  • 3x aluminium
  • 6x brass
  • 6x steel
• Force sensor for frictional force:
  • 0…50N
• Weights:
  • 1x 5N (hanger)
  • 1x 20N
  • 1x 10N
  • 1x 5N

Dimensions & Weight:

• L x W x H: 350x430x230mm
• Weight: approx. 8kg

Learning Objectives/Experiments:

• together with the drive unit:
• frictional forces in different friction pairs and loads
• frictional forces with different lubrication
• frictional forces at different relative speeds of the friction partners
• wear under different friction parameters and lubrication conditions

Scope of Delivery:

• 1 experimental unit
• 1 disk
• 1 set of pins
• 1 set of weights
• 1 set of instructional material

Features:

• investigation of wear
• use of different lubricants possible

Accessories:

• Required:
• TM 260Drive unit for tribological investigations

Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.