817017N
Return Spring
Bendix

This return component provides a controlled restoring force that resets actuating hardware after a call to brake or mechanical release. The part features a defined free length of 89.15 mm, a dimension that correlates to stroke, tension, and the load profile encountered during retraction cycles. In drum and air‑brake applications, return springs are essential for maintaining predictable pedal feel, ensuring quick reapplication after release, and reducing stick or lag under cold or high‑load conditions. The VMRS code 013-001-019 identifies the return spring within the brake subsystem family, category 41393, which covers a range of springs and related actuation hardware. In service, technicians replace worn or fatigued springs during routine brake service to restore appropriate retraction force and prevent misalignment of adjacent levers or linkages. Benefits include consistent brake response, improved wear patterns on contacting components, and reduced risk of residual drag when the system is disengaged. The component is suitable for widespread usage in service braking systems across heavy‑duty trucks and equipment.