The Husqvarna 503254101 Needle Bearing is a genuine OEM component designed for K770 and K770I power cutters. As a direct Husqvarna OEM part, it is manufactured to the exact tolerances required to maintain smooth, dependable operation in these machines. This bearing is the correct replacement for K770 and K770I disc cutters, ensuring a precise drop-in fit without guesswork. DHS Equipment supplies this part to help keep your equipment running at full performance.
Key Features
- OEM-Spec Bearing Tolerances — manufactured to Husqvarna's exact radial load and dimensional specifications, delivering the tight tolerancing that needle bearings demand for high-speed cutter applications.
- Direct Drop-In Replacement — engineered to seat identically to the original, matching the bore diameter and needle complement of the factory-installed bearing for straightforward installation.
- Confirmed Fitment for K770 and K770I — verified for K770 and K770I power cutters, covering both standard and disc cutter configurations in that model family.
- Sustained Rotational Efficiency — a correctly functioning needle bearing allows internal rotating components to spin freely under load; a worn bearing introduces friction, heat, and vibration that accelerate damage to surrounding parts.
- Genuine Husqvarna OEM Part — supplied under the original Husqvarna part number 503254101, so you can cross-reference 503254101 against your parts diagram with confidence before ordering.
A needle bearing uses a series of small-diameter cylindrical rollers to support radial loads between rotating and stationary components inside the cutter. Because the rollers are thin relative to their length, needle bearings carry significant load within a compact space — making them well suited to the tight internal assemblies of a handheld power cutter like the K770. When a needle bearing wears or seizes, the increased friction and play it introduces can cause vibration, accelerated wear on adjacent shafts and housings, and ultimately component failure, making timely replacement essential to keeping the cutter operating safely and efficiently.
Part Details
| Part Number | 503254101 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Needle Bearing |
Compatibility & Fitment
| Name | Model |
|---|---|
| Disc Cutter | K770 |
| Disc Cutter | K770I |
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.
