608 Twin-Flange Spindle Tube
The rotating spindle riser for the 'NEMA17 Geneva Indexing Turntable' kit. It is 30 mm tall, with 46 mm flanges and an OD 30 body that flares out through a self-supporting 45° cone. The bottom flange bolts to the Geneva wheel with 3x M3x10 through 3.4 mm holes on a 38 mm PCD. The top takes an upper 608 bearing (8 × 22 × 7 mm) in a 22.05 mm press seat with a lead-in chamfer, and has 3x M3 heat-set inserts (4.0 × 5 mm) for the platter. The 10 mm through-bore clears the fixed 8 mm rod.
mechanism kit 608-bearing geneva