Introduction Note: Nothing in this standard supercedes applicable laws and regulations. Note: In the event of conflict between the English and domestic language@ the English language shall take precedence. Purpose. This standard covers supplier requirements for engine accessory drive driven pulleys. These differ from idler pulleys in that they do not include a ball bearing. Applicability. This standard covers all driven pulleys. Most common applications are water pump and power steering pump pulleys. Remarks. This standard contains all information necessary to design@ analyze@ develop@ validate@ and manufacture accessory drive driven pulleys.