Description
Overview:
This Blade Shaft is a genuine Husqvarna replacement part for the FS400 and FS400 LV floor saws. It is a precision‐machined steel shaft that supports smooth, accurate blade rotation under heavy cutting loads. Built to maintain alignment and reduce vibration, it helps protect bearings and blades, improving cut quality and extending service life. Dimensions are: length 46 cm (18.11 inches), main journal width 26 mm (1.02 inches), thinnest journal 17 mm (0.67 inches), and keyway 61 mm x 8 mm (2.40 inches x 0.31 inches). It is a direct replacement for OEM No. 581 18 91-01, making it straightforward to restore worn or damaged assemblies on Husqvarna floor saws used for concrete and asphalt cutting.
Key Features:
- Genuine Husqvarna part for correct fit and specification
- Direct replacement for OEM No. 581 18 91-01 to simplify maintenance
- Precision‐machined steel for durability and consistent blade tracking
- Helps reduce vibration for smoother, straighter cuts and improved bearing life
- Keyway 61 mm x 8 mm (2.40 inches x 0.31 inches) for secure drive engagement
- Overall length 46 cm (18.11 inches) to match OEM geometry
- Journal diameters 26 mm and 17 mm (1.02 inches and 0.67 inches) for proper seating and sealing
- Compatible with FS400 series housings without modification
- Suitable for professional site use and regular DIY maintenance
- Supports dependable performance when cutting concrete, asphalt, or masonry
Typical Applications:
Used to replace a worn or damaged blade shaft on Husqvarna FS400 series floor saws. Ideal for restoring accurate blade rotation, maintaining correct alignment, and reducing downtime on roadworks, utilities, landscaping, and construction jobs where clean, controlled slab cutting is required.
Also known as:
Saw spindle, blade spindle, cutter shaft, drive shaft for floor saw, floor saw spindle, diamond saw shaft, concrete saw shaft, FS400 shaft.
Fits Models:
FS 400
FS 400 LV
FS 400LV
FS400
FS400 LV
FS400LV
Alternate Part Numbers:
581 18 91-01, 581189101
