The Husqvarna 502553001 PG680 Bottom Bearing 6212 Rs is a genuine OEM replacement bearing designed for PG680, PG680RC, PG820, and PG820RC floor grinders. This bottom bearing is manufactured to Husqvarna's exact specifications, ensuring a correct, secure fit within the grinder's drive assembly. DHS Equipment supplies this part to help keep your floor grinding equipment running at full capacity.
Key Features
- OEM-Grade Bearing Precision — Built to Husqvarna's exact tolerance specifications for the 6212 Rs bearing profile, delivering consistent load capacity and smooth rotational performance under the high-stress demands of floor grinding.
- Direct Drop-In Replacement — Engineered to seat correctly in the bottom bearing position of the drive assembly without modification, maintaining the correct shaft alignment and seating depth on installation.
- Broad Floor Grinder Compatibility — Confirmed fitment for PG680, PG680RC, PG820, and PG820RC planetary floor grinders, covering both standard and remote-controlled variants in these Husqvarna PG series machines.
- Protects Drive Assembly Integrity — A worn or failed bottom bearing causes excessive vibration, uneven grinding pressure, and accelerated wear on surrounding drive components; replacing it promptly restores stable, balanced operation.
- Rubber-Sealed Construction — The Rs (rubber-sealed) designation means the bearing is shielded against dust and debris ingress — a critical feature in concrete grinding environments where particulate contamination is constant.
The bottom bearing in a planetary floor grinder supports the main drive shaft at its lower mounting point, absorbing radial and axial loads generated during grinding passes. It keeps the shaft centered and stable, which directly affects how evenly the grinding heads contact the floor surface. When this bearing wears out, operators typically notice increased vibration, unusual noise from the drive housing, and a loss of consistent grinding pressure — all of which compromise surface finish quality and put additional stress on the motor and gearbox. Replacing the PG680 Bottom Bearing 6212 Rs with a genuine OEM part ensures the drive assembly returns to proper operating alignment and continues to perform to specification.
Part Details
| Part Number | 502553001 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | PG680 Bottom Bearing 6212 Rs |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | PG680RC |
| Floor Grinder | PG820RC |
| Floor Grinder | PG680 |
| Floor Grinder | PG820 |
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.
