Rolls-Royce Archives
         « Prev  Box Series  Next »        

From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Blueprint chart of gear reduction ratios for plain and compound planet gears.

Identifier  ExFiles\Box 178\2\  img011
Date  25th April 1940 guessed
  
RATIO. LARGER PINION DIA: / ANNULUS DIA:
COMPOUND PLANET
PLAIN GEAR
PINION RATIO FOR COMPOUND PINION = LARGER PINION DIA: / SMALLER PINION DIA
REDUCTION RATIO
DESIRABLE REDUCTION RANGE
PINION RATIO 1 1/2 SUN DRIVING
PINION RATIO 2 SUN DRIVING
PINION RATIO 2 1/2 SUN DRIVING
PLAIN GEAR SUN DRIVING
PINION RATIO 1 1/2 ANNULUS DRIVING
PINION RATIO 2 ANNULUS DRIVING
PINION RATIO 2 1/2 ANNULUS DRIVING
PLAIN GEAR ANNULUS DRIVING
SMALLEST PINION
APPROX LARGEST PINION
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙