A steel spur pinion and gear have a diametral pitch of 12 teeth/in, milled teeth, 17 and 30 teeth,respectively, a 20 pressure angle, a face width of 78 in, and a pinion speed of 525 rev/min. Thetooth properties are Sut 5 76 kpsi, Sy 5 42 kpsi and the Brinell hardness is 149. Use the Gerbercriteria to compensate for one-way bending. For a design factor of 2.25, what is the powerrating of the gearset?
Lecture 8: Test Review Lecture 9: Mass, Weight, G c Outcomes Explain the difference in mass and weight Convert units of given physical quality using g wcen appropriate Mass/Force/Weight Mass is an object's resistance to acceleration Force is the agency that is capable of producing a change in velocity of an object. Based on Newton's 2 nd Law: o Force = mass * acceleration o F = m * a Weight is the force of gravity on an object o Weight = mass * gravity o W = m * g Remember, mass is independent of location in the universe, but your weight is not. Your mass on Earth is the same as on the moon, but your weight would only be 1/6 as much Mass and Weight Weight depends on