M0.5 6x Reduction Planetary Gearset

This is a steel gearset for a 6x planetary gearbox, like used in the qdd100 and other Mini-Cheetah style servos.  It fits inside the stator of 8108 and larger sized motors.  A center distance of 30.0mm is appropriate. It includes 1 ring gear, 1 sun gear, and 3 planet gears with installed needle bearings. Ring gear specifications: 100 tooth OD: 55mm +-0/-0.05 Width: 5mm Mass: 15.2g 42CrMo Steel HRC 25 Notional STEP File Sun gear specifications: 20 tooth Tooth length: 6mm Overall length: 18mm Hub diameter: 11mm +0/-0.02 Bore diameter: 4mm +0.02/-0.0 Mass: 10.2g C-40Cr Steel HRC 25 Notional STEP File Planet gear specifications: 40 tooth Tooth length: 5mm Overall length: 6mm Hub diameter: 14mm Bore diameter: 10mm +0.02/-0.0 Installed HK0608 needle bearing Mass: 10.9g (with bearing) C-40Cr Steel HRC 25 Notional STEP File Notes: Mounting of the sun and ring gear can be accomplished either with a shrink fit, or with adhesive.  For mounting to aluminum, we recommend: slip fit  degreasi