CONCEPT ONLY; NOT ASSEMBLY FIT VALIDATION.
Schematic hub outside diameter 20.0mm, not measured; variant narrowed only to explore geometry.
Z decreases from motor toward steering wheel; motor rear z0; wheel shaft z=-52..-152 length100.
KFL actual nominal 63x38 housing envelope, 48 bolt centers, 7 hole, 5.5 ears, inner 14.5; protrusion OD29 and position assumed.
8mm plates central hole OD30.2 assumed, not actual production spec.
50mm switch opaque-enclosing envelope z=-128.5..-78.5; opening OD47 ASSUMED only; real rotary features and contacts unknown.
Allocation by shaft: motor hub12 + bearing14.5 + switch50 + bearing14.5 + wheel hub9 = 100 mm. No axial gaps. 9mm hub engagement NOT VALIDATED.
Sleeve20 sits inside switch envelope and is not additional 20mm.
Motor mounting boss, shaft end keys, original M3 nut, lights/white contacts, bearing set screws, pin fastening/head/tool and adjuster are not modelled.
Because ideal 100mm budget has zero clearance and unknown wheel hub engagement, this is not a workable fit verification; real assembly remains unverified. Narrow hub has no verified keyway strength or real KFL clearance.
Checked positive-volume intersections (other pairs, loaded operation, exact bearing and switch shape not tested):
Plate0 / KFLHousing0 = 0.000000 mm3
Plate1 / KFLHousing1 = 0.000000 mm3
Plate0 / KFLInner0 = 0.000000 mm3
Plate1 / KFLInner1 = 0.000000 mm3
SwitchEnvelope / CamUpper = 0.000000 mm3
SwitchEnvelope / CamLower = 0.000000 mm3
SwitchEnvelope / CamHardware0 = 0.000000 mm3
SwitchEnvelope / CamHardware1 = 0.000000 mm3
SwitchEnvelope / CamHardware2 = 0.000000 mm3
SwitchEnvelope / CamHardware3 = 0.000000 mm3
MotorFlange / Shaft = 0.000000 mm3
WheelHub / Shaft = 0.000000 mm3
WheelHub / 70Adapter = 0.000000 mm3
Plate0 / Plate1 = 0.000000 mm3
MotorFlange / RearBearing = 107.206849 mm3
WheelHub / FrontBearing = 76.576321 mm3