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 260.05allows a clear representation of the dynamic friction and an analysis of the frictional forces.
• The experimental unit contains a fixed cylindrical pin that is pressed radially against a rotating roller as the friction pair.
• There is point contact between the friction partners.
• The contact force between the friction partners can be adjusted gradually up to a maximum of 80 N by means of a lever.
• The experimental unit includes a tank that supplies lubricant.
• Different lubrication conditions can be studied, such as dry friction, water or oil lubrication.
• Cylindrical 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 roller 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.

Technical Details:

Specifications:

• frictional forces in cylindrical pin and roller that slide on each other (point contact)
• quick and easy assembly of the experimental unit on the frame of the drive unit
• rotating roller made of hardened and ground stainless steel
• roller is driven by a clampable coupling between drive unit and gear unit
• fixed cylindrical pin made of different materials: aluminium, brass or steel
• load on the cylindrical pin via lever arm and stepped weights
• use of different lubricants, e.g., oil or water
• 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
• Roller:
  • Ø=40mm
  • hardened stainless steel, ground
• Cylindrical pin, Ø x H: 10x20mm:
  • 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: 590x180x160mm
• 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

Scope of Delivery:

• 1 experimental unit
• 1 roller
• 1 set of cylindrical 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.