15” SPRING BUMPER — CH1302A
15-inch torsion spring bumper, 2.5mm steel construction. Prevents spring over-travel on standard residential sectional door systems.
Specifications
| Type | Spring Bumper |
| Size | 15 inch |
| Thickness | 2.5mm |
| Application | Prevents torsion spring from over-travel — standard residential sectional doors |
15” Spring Bumper
15-inch torsion spring bumper fabricated from 2.5mm steel, sized for standard residential sectional door systems. The spring bumper mounts to the torsion spring shaft between the spring and the center bearing plate, acting as a mechanical stop that prevents the spring from unwinding beyond its designed travel limit. Over-travel of a torsion spring places dangerous excess stress on the spring coils and the shaft mounting hardware — the bumper is a critical safety component that keeps the spring within its operating range during normal door cycles and cable failure events. The 15-inch length suits the spring tube lengths common on standard residential door heights. Stock item for any contractor servicing residential torsion spring systems.