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[DOC File]Unit 4 - Weebly
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Calculate the speed ratio when an object is lifted 2 m by a pulley system and the rope was pulled 10 m. A speed ratio of 4 means that the _____ force moves _____ times faster than the _____ force. Read “Less force but greater distance”, and then calculate the speed ratio for each ramp.
gear ratio and speed

[DOC File]Shaft Stress Calculations
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Force- Based on axial load exerted on shaft from miter gear (156.12 N) Torque- Exerted by the stall torque of the motor, through a gear ratio of 2:1 (9.64 N-m) Stress Calculation- =102 MPa = 58.4 MPa. Factors of Safety-= 3.9 = 3.4. Fatigue Life. Infinite Life- 2000RPM (Average operating speed…
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[DOCX File]1.2.6 Maximizing Motor Power - Kenwood Academy
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Oct 28, 2014 · A gear train will transfer power from the motor to the drive axle. That 10·N m will be the output torque from the gears. The motor will deliver the input torque to the gears. What gear ratio would you need to use to make this motor deliver maximum power to the drive shaft?
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[DOC File]Gear ratio of a compound gear train continued
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Jan 19, 2010 · If the driver gear was directly connected to our Lego motor (170 rpm’s) in this configuration, what would be the output rpm’s? _____ rpm’s. 3) Calculate the gear ratio of the compound gear train above. _____ ratio . For every turn of gear "A" how many turns will gear "D" complete? _____ turns Is this a speed multiplier? _____ (yes/no) If ...
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Gear Ratio Worksheet: Name
Gear Ratio Worksheet: Name:_____ Gear ratios are written . Driven. gear to . Driving. gear. Always remember to reduce to the lowest common denominator. In all of the following examples Gear A is the driving gear and Gear B is the driven gear.
gear ratio speed calc

[DOC File]SPIRIT 2 - University of Nebraska–Lincoln
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The formula for gear ratio is: Drive Gear / Motor Gear = Gear Ratio. Below are the conditions that students will decide which gear ratio best and record it. Various conditions up and down hills. Steep conditions . Land speed racing. Fuel mileage. Towing. Rock climbing. They will change the gear ratio of the car and the track will be modified to ...
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[DOC File]Gear Ratio Worksheet: Name
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Revolutions per minute, or RPM is the standard and is considered a measurement of speed. If a motor turns a gear on a shaft at the speed of 10 RPM, then the gear, whether it bears 10 teeth or 100 teeth will spin ten times in one minute. That is one revolution every 6 seconds. Half of a …
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Activity 2.2.1 Observing Mechanisms
Gears turn in a circular direction. There is an inverse relationship between torque and speed in gearing. A ten-speed bicycle has ten different gear selections. When you pedal up a hill, you use a gear train that provides more torque (turning force) but, in doing so, less speed.
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[DOC File]Gear Ratios & Torque
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If you have an 8 tooth gear driving a 24 tooth gear, the 24 tooth (driven gear) will turn 1/3 as fast as the 8 tooth input gear since each gear moves one tooth at a time. You can calculate the speed of the output shaft as follows: Output. speed = Input. speed * drive. teeth / driven. teeth
gear ratio and speed

[DOC File]Problem 3-3 (7
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An epicyclic spur gear train as shown in Figure 11-16 (p. 654) has a sun gear of 33 teeth and a planet gear of 21 teeth. Find the required number of teeth in the ring gear and determine the ratio between the arm and sun gear if the ring gear is held stationary. Hints: (10%) Given arm speed (a = 1 rpm.
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Calculate speed from gear ratio