Bevel gear 1 is keyed to shaft b, rotates about fixed axis A and meshes with bevel gears 2 and 3 of equal size. Gear 2 is keyed to shaft a and rotates about fixed axis B-B. Gear 3 is rigidly attached to bevel gear 4 and freely rotates about shaft a. Frame 7, the carrier, is keyed to shaft a and is connected by turning pair D to bevel planet gear 5 which meshes with bevel gears 4 and 6. Gear 6 rotates freely on shaft a. The numbers of teeth of gears 1, 2, 3, 4, 5 and 6 satisfy the conditions: z₁=z₂=z₃ and z₄=z₅=z₆. The speeds n₁ and n₆ of gears 1 and 6 (in rpm) are related by the equation n₆=-3n₁.
$2922$CxG,DR$