Gunite Slack Adjuster AS1140

The Gunite AS1140 Automatic Slack Adjuster is engineered to provide reliable, self-adjusting brake clearance for heavy-duty vehicles. It features a 5.5″ arm length, a 1.5″ spline diameter, and 28 spline teeth—ensuring precision and compatibility with standard S-cam brake systems. Designed to maintain consistent shoe-to-drum spacing automatically, the AS1140 reduces manual brake tuning, extends component life, and enhances safety across demanding commercial and fleet applications.

Specifications:

• Model: AS1140
• Arm Length: 5.5 in.
• Spline Diameter: 1.5 in.
• Spline Teeth: 28

Key Features:

• Self-adjusting operation maintains ideal brake clearance
• 28-tooth, 1.5″ spline for secure camshaft engagement
• 5.5″ arm suits typical brake configurations
• Commercial-grade durability for long-term fleet use
• Reduces manual maintenance and improves brake consistency

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