zielsicher Englisch, Metalltechnik, Schulbuch

These pictures show a rolling bearing and a plain bearing. Which is which? Have you learned the differences, yet? plain bearing rolling bearing Different kinds of bearings. Read the introduction, then look for three terms in the Word bank, which are important for the motion quality. Bearings take in forces of moved components and conduct them to their surroundings for example to the transmission boxes. The following points are important for the motion quality and help to avoid any damage to the bearings themselves: •• an appropriate  lubrication •• the direction of rotation •• the stress direction A rough classification of the countless bearings is the result of the power transmission in the bearing. Here, they are divided into plain bearings and rolling bearings. Depending on the direction of the force, there is also another way of classifying bearings: Thrust bearings transmit the forces in a longitudinal direction. Radial bearings transmit the forces in a transverse direction. Supporting and inclined bearings transmit the forces in both directions. 01 A2 Word bank 01 bearing Lager plain bearing Gleitlager rolling bearing Wälzlager 02 lubrication Schmierung direction of rotation Drehrichtung stress direction Belastungsrichtung power transmission Kraftübertragung thrust bearing Axiallager supporting bearing Stützlager longitudinal direction Längsrichtung transverse direction Querrichtung inclined bearings Schräglager shaft Welle bearing housing Lagergehäuse axial rolling bearing Axial-Wälzlager plain journal bearing Radial-Gleitlager axial acting axial wirkend radial acting radial wirkend 02 A2–B1 axial rolling bearing bearing housing radial acting axial acting shaft F F plain journal bearing Plain bearings and rolling bearings Eric is on his way to vocational school with his bike when he hears a strange noise coming from his front wheel. He gets off and turns the wheel with his hand. He is sure that the rolling bearing inside the hub of the bicycle is damaged. Luckily, they are talking about bearings at school right now. David is really looking forward to the lesson because he wants to repair the bike himself and save money. What do you know about bearings? Why are they very important? 140 Unit 27 Nur zu Prüfzwecken – Eigentum des Verlags öbv