The Husqvarna 502539101 Ball Bearing is a genuine OEM component designed for PG680, PG820, PG680RC, and PG820RC floor grinders. As a factory-sourced replacement, this bearing is manufactured to Husqvarna's exact dimensional and load tolerances, ensuring a drop-in fit with no guesswork. This Ball Bearing is confirmed compatible with both the 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
- Precision-Tolerance OEM Construction — manufactured to Husqvarna's exact radial load and dimensional specifications, maintaining the tight clearances that floor grinder rotating assemblies demand.
- Direct Replacement Fit — this bearing seats directly into the original housing with no machining or adaptation, preserving proper shaft alignment throughout the drivetrain.
- Broad PG-Series Compatibility — fits PG680, PG680RC, PG820, and PG820RC floor grinders, covering both standard and remote-controlled models in the series.
- Smooth, Low-Friction Rotation — a correctly functioning bearing keeps rotating components spinning freely and evenly, which is critical for consistent grinding pressure and surface finish quality.
- Verified Genuine OEM Part — cross-reference part number 502539101 against your Husqvarna parts diagram to confirm the correct application before installation.
A ball bearing supports and guides rotating shafts by reducing friction between moving parts through a series of precision-ground steel balls seated between inner and outer races. In a floor grinder like the PG680 or PG820, bearings carry the radial and axial loads generated during grinding passes, keeping the rotating assembly aligned and stable. When a bearing wears or fails, operators typically notice increased vibration, noise, heat buildup, or uneven grinding performance — all of which accelerate wear on surrounding components and compromise the quality of the finished floor surface.
Part Details
| Part Number | 502539101 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Ball Bearing |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | PG680 |
| Floor Grinder | PG820 |
| Floor Grinder | PG820RC |
| Floor Grinder | PG680RC |
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.
