Bevel gear 3 is keyed to shaft 1, rotates about fixed axis A-A and meshes with bevel planet gear 4 which is keyed to shaft 9. Also keyed to shaft 9 are bevel planet pinions 5 and 6 which mesh with fixed bevel sun gear 7 and rotary bevel sun gear 2. Shaft 9 rotates in the bearings of carrier 8 which rotates freely about shaft 1. Gear 2 is keyed to shaft 10 and rotates about axis A-A. The speeds n₁ and n₁₀ of shafts 1 and 10 (in rpm) are related by the equation „n₁₀=n₁(z₃/z₂)((z₂z₅+z₆z₇)/(z₃z₅-z₄z₇)) where z₂, z₃, z₄, z₅, z₆ and z₇ are the numbers of teeth of gears 2, 3, 4, 5, 6 and 7.
$2897$CxG,PR$