{"id":3676,"date":"2021-11-27T22:02:55","date_gmt":"2021-11-27T22:02:55","guid":{"rendered":"https:\/\/tribologie-mannheim.de\/equipment\/a135\/"},"modified":"2022-12-09T09:23:28","modified_gmt":"2022-12-09T09:23:28","slug":"a135","status":"publish","type":"page","link":"https:\/\/tribologie-mannheim.de\/en\/equipment\/a135\/","title":{"rendered":"A135"},"content":{"rendered":"\t\t
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Amsler two-disc test stand “A135<\/h2>\n

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The two-disk test rig “A135” from Roell-Amsler can be used to investigate the motion types rolling, sliding and tumbling.<\/td>\n<\/tr>\n
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As standard, two 10 mm wide discs with a diameter of 40 mm are pressed together. Theoretically, the lateral surfaces of the disk can have any conceivable geometry. The frictional torque is recorded continuously. Wear can be determined after the test by weighing or measuring. <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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With the switchable eccentric, a pulsating radial load (abrupt lift-off) can be superimposed on the rotary motion. A second eccentric allows periodic axial back and forth movement of the upper specimen. When the upper shaft is stationary, a bearing half-shell can also be used instead of the cylindrical specimen in order to test plain bearing materials and coatings, for example.<\/p>\n

The test bench is used at KTM primarily for simulating wheel\/rail systems. Here, liquid and paste lubricants as well as solid lubricating pins are examined.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Test bench parameters<\/strong><\/span><\/td>\nA 135<\/strong><\/td>\n <\/td>\n <\/td>\n<\/tr>\n
Normal force<\/td>\n20 to 2000 N<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
Speed<\/td>\n25 to 350 1\/min<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
Temperature<\/td>\nRT<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
Movement types<\/td>\nGlide, roll, roll<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
Slip<\/td>\n0%, 10%, 200% (reverse)<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
Friction conditions<\/td>\nSolid state, boundary and mixed friction, elastohydrodynamics<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
Contact geometry<\/td>\nPoint, line contact<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
Measured variables<\/td>\nContinuous friction torque measurement<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
Specimen<\/td>\nWidth 10 mm, \u00d8 40 – 65 mm<\/td>\n <\/td>\n <\/td>\n<\/tr>\n
Sliding speed<\/td>\n0.1 to approx. 2.7 m\/s<\/td>\n <\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Exams<\/h4>\n