Upgrade & Restore Your Wheel Balancer's Shaft Assembly

The 1"/4" Flat Washer is a hardened, precision flat or spacer washer designed to support heavy axial rotational loads and prevent friction binding on the main threaded shaft and mounting hubs of professional wheel balancers.

Regular maintenance and timely replacement of warped, rusted, or scored washers are critical to preventing hub-nut binding on main spindle shafts and keeping wheel mounting assemblies rotating perfectly true.

Machine Location:

This washer is positioned on the main threaded shaft, backing plate assembly, hub nut retainer, or motor mounting plate of the wheel balancer.

Key Features & Specifications

• Hardened Wear Resistance: Stamped from high-strength carbon steel to withstand extreme high-speed rotational loads without crushing.
• Precision concentric alignment: Sized with exact inner and outer diameters to eliminate radial wobble on rotating balancer shafts.
• Corrosion Barrier: Treated surface resists garage humidity, moisture, and shop chemicals.

Complete Machine Compatibility

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

• Coats 1300, 1400, 1500 And 1600 Wheel Balancer
• Coats APX Rim Clamp Tire Changer
• 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:

• Coats 22" Touch Display For 1600 (Part # 85612139)
• Coats 5/8"-11 Shsscp Screw (Part # 8109770)
• Coats 5/16"-18" Lock Nut (Part # 8000525)
• Coats Air Chuck For Inflation Hose (Part # 8410419)
• Coats 1/4"-20" X 3/4" Hex Head Washer Cap Bolt (Part # 8106301)
• Coats 1/8" X 1 Cotter Pin (Part # 8102278)
• Coats 22" Touch Display For 1600 Balancer - Viewsonic (Part # 85610608)
• Coats 22" Touch Display Viewsonic (Part # 85612143)
• Coats Hdmi Cable (Part # 85612261)
• Coats Manual Push Button (Part # 8182047)

Alternative / Cross-Reference Part Numbers: SVI BW-8113-921 | Coats 8113921 | Distributor AM8113921

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.