TM 282 Friction In Journal Bearings Didactic Equipment Vocational Training Equipment Mechanical Training Equipment
Learning the fundamentals of hydrodynamic lubrication by experimentation Features - fundamentals of hydrodynamic lubrication - friction states under different operating conditions - electronic speed control and digital display of speed and lubricant temperature Learning objectives/experiments - develop an understanding of technological relationships of hydrodynamic lubrication by experimentation - frictional moment in a journal bearing as a function of -- speed -- bearing load -- lubricant and lubricant temperature Specification [1] investigation and visualisation of hydrodynamic bearing [2] radial journal bearing with stainless steel journal and freely movable bronze bearing shell [3] drip lubrication for continuous supply of lubricant (drip oiler) [4] journal bearing subjected to load by means of mechanical lever [5] variable speed via frequency converter [6] frictional moment measured by level with sliding weight [7] inductive speed measurement [8] thermocouple in the bearing housing to measure the oil temperature [9] display and control unit with digital displays for oil temperature and speed Technical data Journal bearing - shaft diameter: Ø=30mm - bearing width: 45mm - friction pair: steel/bronze Motor: 0,37kW Oil viscosity grade: ISO VG 32 Weights - 1x 50N, 1x 20N, 2x 10N, 2x 5N, 2x 5N - lever transmission ratio: 5:1 Measuring ranges - temperature: -50...200°C - speed: 100...3000min-1 - bearing load: max. 525N - friction moment: max. 295Nmm 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 610x440x360mm (experimental unit) LxWxH: 360x340x160mm (display and control unit) Weight: approx. 40kg
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