During maintenance, your supervisor has instructed you to change a pulley that needs to be stepped...

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During maintenance, your supervisor has instructed you to change a pulley that needs to be stepped up for the purpose of running smaller drills and reamers. The driver pulley is 250 mm and runs at a speed of 432 revolutions per minute (rpm). The new pulley needs to run at 600 rpm or 9.5 metres per second (m/s). Formula: D1x N = D2X N2 Where: D1 is the diameter of the driver. N is the speed (in rpm) of the driver. D2 is the diameter of the driven. N2 is the speed (in rpm) of the driven. Answer questions 8 - 11 about pulleys. 8. Fill in the table with the information you have been given. Diameter Speed Driver pulley Calculate D2, the size of the new driven pulley. 10. The rating for the belt on this pulley is 30 m/s. Discuss whether this belt is suitable or unsuitable. 11. Driven pulley The drive requires limited slippage but needs to self-tighten when torque is applied. Explain why a V-belt is more appropriate for this application than either a flat belt or a positive-drive belt. During maintenance, your supervisor has instructed you to change a pulley that needs to be stepped up for the purpose of running smaller drills and reamers. The driver pulley is 250 mm and runs at a speed of 432 revolutions per minute (rpm). The new pulley needs to run at 600 rpm or 9.5 metres per second (m/s). Formula: D1x N = D2X N2 Where: D1 is the diameter of the driver. N is the speed (in rpm) of the driver. D2 is the diameter of the driven. N2 is the speed (in rpm) of the driven. Answer questions 8 - 11 about pulleys. 8. Fill in the table with the information you have been given. Diameter Speed Driver pulley Calculate D2, the size of the new driven pulley. 10. The rating for the belt on this pulley is 30 m/s. Discuss whether this belt is suitable or unsuitable. 11. Driven pulley The drive requires limited slippage but needs to self-tighten when torque is applied. Explain why a V-belt is more appropriate for this application than either a flat belt or a positive-drive belt.