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Upgrade & Restore Your Wheel Balancer's Performance

The Encoder Assembly is a professional-grade mechanical component designed specifically for wheel balancers. Engineered to exact factory tolerances, it directly replaces original equipment part number 85606464 to maintain balanced, wobble-free rotation and precise wheel balancing calibration.

Timely replacement of worn mechanical parts and hardwares is critical to preventing high-speed vibrations, protecting sensitive piezoelectric sensors, and reducing expensive garage downtime.

đź“‹ Factory Service Bulletin Guidance:

Update Date: June 2009
Subject: XR Balancers - Enclosed Encoder

Beginning with serial number 0906307638, all XR balancer models are equipped with an enclosed encoder. With an enclosed encoder there is no gap to set, no timing to set, and no decal to collect dust. With an enclosed encoder, the XR encoder test and test screens should NOT be used to check performance. However, the 0 through 255 count displayed on the “green” self-test screen is still a valid way to check encoder performance. The left hand threaded bolt, attached to the encoder shaft, fastens directly into the spindle shaft, replacing the original bolt, and helps retain the spindle pulley. The encoder cable has a connector on each end, is independent from the encoder, and has is own part number.

Machine Location:

This part is positioned within the primary rotating shaft, hub adapters, motor assemblies, or safety hood structures of the wheel balancer.

Key Features & Specifications

  • High-Precision Machining: Fabricated to exact physical tolerances to ensure perfectly concentric rotation on high-speed balancer shafts.
  • Vibration Damping: Engineered to absorb heavy rotational vibrations and sustain critical machine calibration.
  • Direct Factory Drop-In: Fits seamlessly onto original mounting positions with no modifications or physical adjustments required.

Complete Machine Compatibility

This universal replacement part is documented and verified to fit the following Coats® equipment models:

  • Coats Kit 85606578, Sealed Encoder Replacement
  • Coats Series Xr 1750, 1750-2D, 1750-3D, 1750-3Di Wheel Balancer
  • Coats Series Xr 1800, 1850 Wheel Balancer

Frequently Bought Together / Related Parts

These drawing-adjacent parts connect directly next to this part on your parts breakdown and assembly drawings:

đź”§ Pro Installer Tip:

Ensure the machine is completely disconnected from power before replacing any parts. We highly recommend running a standard calibration cycle on your wheel balancer after replacing any component associated with the rotating hub assembly.


Alternative / Cross-Reference Part Numbers: SVI BW-8560-6464 | Coats 85606464 | Distributor AM85606464

AMMCO and COATS are registered trademarks of The Coats Company. AEPN Inc. is not associated in any way with The Coats Company, Inc. Any names, symbols, numbers, and descriptions are used for reference purposes only. It is not implied that any part listed is the product of these manufacturers.

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