The Husqvarna 502539301 Ball Bearing is a genuine OEM component designed for the PG680, PG820, PG680RC, and PG820RC floor grinders. As a direct OEM replacement, this bearing is manufactured to Husqvarna's precise tolerancing specifications, ensuring the correct load rating, dimensional fit, and rotational accuracy for these machines. It is compatible across both standard and remote-controlled variants of the PG680 and PG820 floor grinder series. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM Precision Tolerancing — manufactured to Husqvarna's exact dimensional and load-rating specifications, ensuring the correct radial clearance and rotational accuracy required in floor grinder applications.
- Direct Drop-In Replacement — engineered to the same bearing seat dimensions and shaft interface as the original, allowing straightforward installation without modification.
- Broad PG-Series Compatibility — fits PG680, PG820, PG680RC, and PG820RC floor grinders, covering both standard and remote-controlled models in Husqvarna's professional floor grinding line.
- Sustained Grinding Performance — a correctly seated bearing maintains smooth, low-friction rotation under the high loads typical of planetary floor grinding, supporting consistent tool-head pressure and even surface results.
- Protects Adjacent Components — a worn bearing introduces vibration and shaft play that can accelerate wear in surrounding assemblies; replacing it promptly with a genuine OEM unit protects the integrity of the wider drivetrain.
A ball bearing supports rotating shafts and spindles by carrying radial and axial loads with minimal friction. In a floor grinder like the PG680 or PG820, bearings are critical to maintaining precise alignment between the motor and the grinding heads — any wear or roughness in the bearing race translates directly into vibration, uneven grinding pressure, and accelerated wear on connected components. When a bearing begins to fail, operators typically notice increased noise, heat buildup, or a roughness in machine movement; left unaddressed, a failed bearing can cause secondary damage to the shaft and housing. Replacing it with a genuine Husqvarna part, such as part number 502539301, restores the correct rotational geometry and protects the machine's performance over the long term.
Part Details
| Part Number | 502539301 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Ball Bearing |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | PG680 |
| Floor Grinder | PG820 |
| Floor Grinder | PG680RC |
| Floor Grinder | PG820RC |
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.
