SP-4 SPRING 30.2*1.8*76 INGCO (RH150028) E-16
Dimensions:
Outer Diameter: 30.2 mm
Wire Thickness: 1.8 mm
Free Length: 76 mm
Diagram Reference: E‑16
Tool Model: INGCO RH150028 — 1500 W Rotary Hammer
🧰 What It Is
The SP‑4 Spring is a compression spring used inside the rotary hammer’s internal mechanism. It is made from coiled spring steel formed to provide a controlled compressive force when loaded. In rotary hammers, such springs are critical for returning moving parts to their starting positions and maintaining proper preload between components.
⚙️ Technical Function
This compression spring performs key roles in the hammer mechanism:
1. Return Force
It pushes a moving component back to its rest position after each cycle of operation.
2. Preload & Contact Maintenance
Ensures that parts remain in constant contact or engagement where needed, such as keeping detents engaged or maintaining pressure on a sliding assembly.
3. Dampening Support
Under repeated hammer action and vibration, the spring helps absorb shock and provide controlled motion between cycles.