The Husqvarna 531073928 Cup Spring is a genuine OEM component designed for the DM225 and DM225D concrete core drills. As a direct Husqvarna OEM part, it is manufactured to the same specifications as the original, ensuring correct load characteristics and dimensional fit within the drill assembly. DHS Equipment supplies this part to help keep your equipment running at peak performance.
Key Features
- OEM Spring Rate Accuracy — Manufactured to Husqvarna's original load and deflection specifications, maintaining the correct clamping or tensioning force this spring is engineered to deliver within the drill assembly.
- Drop-In Replacement — Matches the original profile and seating dimensions, fitting directly into the DM225 and DM225D without modification or re-engineering of surrounding components.
- Compatible with DM225 and DM225D Core Drills — Verified fitment for both the DM225 and DM225D concrete core drill models, cross-reference part number 531073928 against your parts diagram to confirm your application.
- Sustained Clamping Integrity — A cup spring in correct condition maintains consistent axial preload; a fatigued or collapsed spring can cause looseness, vibration, or premature wear in connected components, affecting drilling precision.
- Genuine Husqvarna OEM Quality — Sourced directly through Husqvarna's OEM parts chain, so the material grade and heat treatment meet the original design requirements rather than an approximated equivalent.
A cup spring — also known as a Belleville washer or disc spring — is a conical washer-style spring that stores and releases axial force when compressed. In a concrete core drill like the DM225, it is typically used to apply consistent preload to a shaft, bearing assembly, or clutch mechanism, keeping components properly seated under the high torques and vibrations of core drilling. When a cup spring fatigues, deforms, or fractures, it loses its ability to maintain that preload, which can lead to unwanted play in the assembly, accelerated bearing wear, or inconsistent clutch or gear engagement. Replacing a worn spring restores the designed clamping force and protects the surrounding components from secondary damage.
Part Details
| Part Number | 531073928 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Cup Spring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Concrete Core Drill | DM225 |
| Concrete Core Drill | DM225D |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
