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Avtron M3-(3-9, A-J) Encoders

Avtron M3-(3-9, A-J) Encoders are mill duty, optical, hollow shaft mounted. Forget tiny hollow shaft units that require shaft reduction and special protection! M3 encoders fit any motor or load shaft from 5/8" to 2 3/8". M3 encoders offer a huge variety of connector and anti-rotation mounting options to replace virtually any existing tachometer or encoder. M3 encoders are also available in solid shaft/coupled units for foot or face mounting: M3-1 and M3-2. For heavy mill duty applications, step up to the magnetic M4-(3-9, A-J) encoder.

M3- (3-9) Encoder shown with big bore (top photo) and small bore (bottom photo).
M3-(3-9, A-J)

Hollow Shaft Mount
5/8" - 2 3/8" [12mm-58mm]

Mill Duty

Optical Encoder

PPR: 240 - 2500

-40°C* to +85°C

The Most Durable Optical Encoder Available!

  • Shatterproof Optical Disk
  • Wide-Gap Technology: Up to 8X larger gap between optical sensor and Optical Disk
  • Larger bearings spaced farther apart tolerate misalignment and radial forces better
  • Superior seals and bearings with synthetic lubricant for longer life
  • *Special -40°C option available for outdoor applications
  • 1 Year No-Hassle Warranty

More Advantages!

* Sales Bulletin
* Instruction Sheet
* Anti-Rotation Arm
* Declaration of Conformity
* Declaration of Incorporation
* Shaft Grounding Kit Instructions
**M3/M4 Installation Video (18.3 MB)*

Most models available in 3-5 days!
Request same-day shipment!


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