Dynamic friction in cylindrical pin - roller Investigation of wear in pairs of friction materials with point of contact Features - frictional forces between two sliding friction pairs - investigation of wear - use of different lubricants possible 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 Specification [1] frictional forces in cylindrical pin and roller that slide on each other (point contact) [2] quick and easy assembly of the experimental unit on the frame of the drive unit [3] rotating roller made of hardened and ground stainless steel [4] roller is driven by a clampable coupling between drive unit and gear unit [5] fixed cylindrical pin made of different materials: aluminium, brass or steel [6] load on the cylindrical pin via lever arm and stepped weights [7] use of different lubricants, e.g. oil or water [8] frictional force measured by force sensor [9] displays of force and speed and speed adjustment on the drive unit Technical data Load application device - max. load: 80N - lever arm ratio: 2:1 Roller - Ø=40mm - hardened stainless steel, ground Cylindrical pin, ØxH: 10x20mm - 3x aluminium - 3x brass - 3x steel Force sensor for frictional force - 0...50N Weights - 1x 5N (hanger) - 1x 20N - 1x 10N - 1x 5N LxWxH: 570x220x160mm Weight: approx. 8kg