Dyson DC25 Brush Core with Bearing NSS Using the correct bag ensures

Using the correct bag ensures a proper seal in your vacuum

or obstructions

Fitting a clean replacement brings back full airflow and clean exhaust

These standard paper bags handle everyday debris as the machine's primary filter

Dyson DC25 Brush Core with Bearing NSS Using the correct bag ensuresThis replacement brush core with bearing (part #10 3507 21) fits the Dyson DC25 upright and ships pre assembled with its bearing. The core holds the bristle rows and rotates against the carpet to lift embedded dirt. Worn bristles let the DC25 skate over dirt, and a dry or failing bearing produces noise and drag before it locks up entirely. Replacing the core and bearing together renews both parts in one step. The dense bristle pattern brings back