{
 "object": "tri-clamp-rd-power-head",
 "license": "CC BY 4.0, Xem Studio",
 "les": "https://longearthsociety.com/engineering/",
 "files": [
  {
   "name": "rd-power-head-2in",
   "step": "/files/hardware/tri-clamp-rd-power-head/rd-power-head-2in.step",
   "stl": "/files/hardware/tri-clamp-rd-power-head/rd-power-head-2in.stl",
   "note": "2 in rolling-diaphragm power head: standard ISO 2852 2 in clamp face (land Ø56.5–Ø64, rim 2.85, recess 1.6 inside Ø56.5, 20° back cone; face plane 0.85 from the clamp plane), Ø38.10 bore from the recess floor to 49, floor 6 with 4 × Ø6 vents, Ø16 boss with an Ø8 × 24 seat for two 5 × 8 × 12 bushings, crank tower with two Ø16 × 5 bearing pockets on the shaft axis 188 above the clamp plane"
  },
  {
   "name": "rd-seat-ring-2in",
   "step": "/files/hardware/tri-clamp-rd-power-head/rd-seat-ring-2in.step",
   "stl": "/files/hardware/tri-clamp-rd-power-head/rd-seat-ring-2in.stl",
   "note": "diaphragm seat ring: Ø63.5 × 1.19 on the land (Ø56.5–Ø63.5), 2.79 thick inside Ø56.5 (fills the head's 1.6 recess), bore Ø38.10 with the 1/16 in mouth radius"
  }
 ]
}