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Avtron M3-(3-9, A-H) and M4-(3-9, A-H) Encoder
Hollow Shaft Installation

Because the M3 and M4 are fully self contained, there are no complicated alignment procedures required. Simply slide the M3 or M4 hollow shaft encoder onto the shaft, tighten the clamping collar, and connect the anti-rotation arm to the back of the motor. The M3 and M4 do not depend on precise motor tolerances or C-Faces to operate.

Even on motors equipped with machined C-Faces, the hollow shaft M3 and M4 have advantages because they eliminate coupling and bearing problems associated with the misalignment of shafts and couplings.

Hollow Shaft Installation Sequence No Testing Needed  –  No Special Tools  –  No Mounting Flanges or Couplings
1. Install Stub Shaft	2. Slide Encoder onto Shaft and Tighten Collar	3. Install Torque Arm