Journal Bearing Friction Apparatus Unit

Product Description

Journal Bearing Friction Apparatus Unit Technical description of Journal Bearing Friction ApparatusUnit The basic tribological phenomena of journal bearings can be investigated using this unit. The journal bearing to be investigated consists of a stainless steel bearing journal and the free-moving gunmetal bearing housing. A three-phase ac motor with a frequency converter for speed control serves as the drive. A lever with a sliding weight attached to it is connected to the bearing housing. This enables an external moment to be set corresponding to the friction moment generated in the bearing. Another lever, combined with a set of weights, applies the defined load to the bearing. It is possible to view the bearing journal and the lubrication gap through the transparent cover. Lubricant is supplied by a drip-feed lubricator that feeds oil to the shaft via two lubrication channels. A drip tray collects the oil that leaks out. The continuously adjustable speed, as well as the temperature of the lubricant, is indicated digitally on the control unit. Specification of Journal Bearing Friction ApparatusUnit Unit to investigate basic tribological topicsRadial journal bearing with stainless steel shaft journal and free-moving bronze bearing shellsThree-phase ac motor with frequency converter for speed controlLoad applied to journal bearing using a mechanical lever, transmission ratio 5: 1Measurement of friction moment acheived through the use of a lever with sliding weightBalance weight to compensate for the intrinsic weight of the measuring set-upDrip-feed lubrication for continuous lubricant supply (drip-feed lubricator)Drip tray for leakage oilInductive speed sensorThermocouple for oil temperature measurementControl housing with digital displays for oil temperature and speed, also allows speed to be varied Technical data of Journal Bearing Friction ApparatusUnit Journal Bearing Bearing journal diameter: d=30mmBearing width: 45mmFriction pairing: steel / bronzeBearing load: max. 525nFriction moment: max. 295nmm Three-phase ac motor Power output: 0,37kwOil viscosity class: iso vg 100 Measuring ranges Temperature: -50...200cSpeed: 0...3000min-1 Weights 1x 50n, 1x 20n, 2x 10n, 2x 5n;1x 25n intrinsic weight of load unit1x 1n sliding weight Dimensions and weight of Journal Bearing Friction ApparatusUnit L x w x h: 600x440x360mm (experimental unit)L x w x h: 360x310x160mm (control unit)Weight: approx. 40kg