Product Description
Engineered for precision fifth wheel alignment, our Shim Plate System eliminates uneven wear and improves tractor-trailer coupling performance. CNC-machined from high-grade alloy steel, these laser-verified shims provide micro-adjustment capability (±0.25°) while withstanding 60,000+ PSI bearing pressure. The patented interlocking design maintains secure positioning even under extreme vibration and shock loads.
Product Classification
Type:
Fifth Wheel Alignment Shim
01
Category:
Coupling System Components
02
Application:
Kingpin wear compensation
Trailer height adjustment
Coupler angle correction
Fleet standardization programs
03
Compatibility:
Fits all SAE/JIS standard fifth wheels
04
Technical Specifications
| Material | 4140 Chromoly Steel (Hardened to HRC 40-45) |
| Thickness | Options 1/16" to 1/2" (0.5mm increments) |
| Surface Finish | Ground flat (±0.001" tolerance) |
| Load Capacity | 80,000 lbs dynamic / 120,000 lbs static |
| Corrosion Protection | Zinc-nickel plating (ISO 4042) |
Key Features
Precision Alignment
Laser-etched thickness markings
Interlocking anti-shift teeth
Pre-drilled for safety chain attachment
Durability Enhancements
Through-hardened construction
Wear indicators at critical contact points
Self-lubricating coating
Installation Advantages
Tool-less stacking system
Color-coded by thickness
No welding required
Safety Systems
Shear-proof design
FMCSA-compliant
Overload deformation alerts
Competitive Advantages
70% Longer Service Life vs standard shims
5-Year No-Wear Warranty
DOT/FMCSA Compliant - Exceeds FMVSS 571.208
Made in USA - Mil-spec materials
Reduces Tire Wear - Corrects alignment by up to 35%
Why Fleets Choose Our Shim Plates
Proven in 2M+ Mile Testing
Zero reported failures
Eliminates
Premature Kingpin Wear
Saves Fuel
Reduces coupler drag
QR
Coded Traceability
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