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Upgrade & Restore Your Wheel Balancer's Shaft Rigidity

The #6-32" Lock Nut is a high-tensile, direct-replacement locknut/jam nut designed to secure the heavy-duty threaded shafts, pulleys, motor mounts, and piezo sensor assemblies of professional wheel balancers.

Under continuous mechanical vibration and high-speed motor rotation, structural nuts can stretch or loosen. Replacing worn locking hardware ensures perfect axial clamping torque and protects key shafts from rotational drift.

📋 Factory Service Bulletin Guidance:

Update Date: April 2009
Subject: 1250 Video Display PCB to LCD Connection

ire Changers (TC)T We are still experiencing 1250 video displays with images that are shifted, the wrong color, missing, and/or flickering. The root cause for a majority of these problems is the white connection between the LCD and the display PCB becoming loose. In a continuing effort to insure this connection remains stable, the following display assembly running changes were put into production beginning with serial number 0904305059. (There is no upgrade program.) In addition to the above, a piece of tape has been added to the back of the LCD to prevent grounding.

Machine Location:

This nut installs directly on the main threaded shaft, pulley mount, motor assembly, or sensor bracket assemblies of the wheel balancer.

Key Features & Specifications

  • Concentric Thread Lock: Machined from heavy-duty forged steel to distribute torque evenly and prevent high-speed rotational slip.
  • Moisture & Dust Defense: Finished with a rust-resistant coating to repel shop moisture, grease, and tyre lubes.
  • Extreme Duty Holding: Built to maintain precise structural torque to prevent balance sensors from losing calibration.

Complete Machine Compatibility

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

  • Coats 1000 / 1000D Balancer
  • Coats 1250 Series Balancer
  • Coats 1300, 1400, 1500 And 1600 Wheel Balancer
  • Coats 4000E Drum And Disc Brake Lathe
  • Coats 6401 Balancer
  • Coats 85613512 E900
  • Coats 950, 1025, 1050, 1055 Balancer
  • Coats Ibs 2000 Wheel Balancer
  • Coats Kit 8112877 Touch Panel Replacement
  • Coats Kit 8112999 Or 8113000 Touch Panel Replacement
  • Coats Vero Series Wheel Balancer

Frequently Bought Together / Related Parts

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

🔧 Pro Installer Tip:

Clean the main shaft threads of any old grease or metal shavings before threading. Tighten to exact factory torque specifications using a backup wrench.


Alternative / Cross-Reference Part Numbers: SVI BW-8111-055 | Coats 8111055 | Distributor AM8111055

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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