schutzblech zum stecken Nextcover Sizeguide_Gants_de_MMA Color:Matte Black / Gloss Black BUWEE E-Bike Trekking 7

schutzblech zum stecken Nextcover Sizeguide_Gants_de_MMA Color:Matte Black / Gloss Black BUWEE E-Bike Trekking 7

BUWEE E-Bike Trekking 7 speed, derailleur gears, rear motor - prometheus- bikes

Genausowenig wie der Flow auf dem Mountainbike

Sizeguide_Gants_de_MMA

Color:Matte Black / Gloss Black

Sizing a Motor and Gear Reducer • Calculate Flow Required • Flow = (In3/Rev * Rev/Min) / In3/Gal • Flow = (82.9 * 40) / 231 • Flow = 14.35 Gal Theoretical • Assume 85% Volumetric Efficiency 14.35 / .85 = 16.88 Gal Sizing a Motor and Gear Reducer • Select Motor • Total Displacement / Gear Ratio = Motor Displacement • 82.9 / 4.8 = 17.27 in3/Rev • 82.9 / 6 = 13.82 in3/Rev • 82.9 / 24.96 = 3.32 in3/Rev • 82.9 / 31.2 = 2.66 in3/Rev Sizing a Motor and Gear Reducer • Select Motor • Assume 90% mechanical efficiency of the motor and gear box combination and the displacements would become: • 17.27 = 19.2 • 13.82 = 15.35 • 3.32 = 3.69 • 2.66 = 2.95 Sizing a Motor and Gear Reducer • Single or Double Reduction • 40 RPM * 24.98:1 or 31.2:1 would result in motor speeds at or in excess of 1,000 RPM – beyond the range of most LSHT motors and at the low efficiency end of the high speed motor range