Automatic Brake Slack Adjuster for Trucks

An Automatic Brake Slack Adjuster (ABSA) is a critical component in commercial vehicle braking systems, designed to automatically maintain optimal brake clearance as the brake linings wear over time.

Key Features & Functions

Self-Adjusting Mechanism

Automatically compensates for brake pad wear, ensuring consistent brake clearance without manual intervention.
Eliminates the risk of over-travel (excessive pushrod stroke) or under-adjustment (insufficient braking force).

Enhanced Safety & Performance

Maintains proper braking torque across all wheel positions (front/rear, left/right).
Reduces the likelihood of brake fade caused by excessive heat due to misadjusted brakes.

Durability & Maintenance Benefits

Minimizes manual maintenance requirements, lowering operational costs.
Compatible with air brake systems (common in heavy-duty trucks).

How It Works

During forward braking, the adjuster senses slack and engages a one-way clutch mechanism to rotate the adjustment screw.
Reverse torque (e.g., during reversing) typically does not trigger adjustment, preventing over-compensation.
Some advanced models feature wear indicators for proactive maintenance.

OEM	PT 40-06/PT 40-07
Refereces
Spline Teeth	10
Arm Lengths	125/150
Bushing Diameter	12
Material	Forging or casting
MOQ	50 pcs
Packaging	Neutral or Customized
Brand	Supper truck/ Ryaim or customized
Product standard	High quality/ 100% testing before shipment
Delivery term	Fob Ningbo or Shanghai, CIF, DDP….