About This Item
This Genuine Husqvarna Blade Shaft is engineered to deliver accurate, smooth blade rotation on FS400 and FS400 LV floor saws. Manufactured to OEM specification under part number 581 18 91-01, it ensures correct alignment, secure drive engagement, and dependable stability under heavy loads. The precision-machined steel construction helps reduce vibration, protects bearing assemblies, and supports consistent cutting accuracy on concrete and asphalt surfaces.
This replacement shaft restores performance when the original becomes worn, scored, bent, or develops excessive play. It is designed for a direct fit with Husqvarna FS400 series saw housings and requires no modification during installation.
Approximate Weight: 2.8 kg
Features
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Genuine Husqvarna OEM part for assured fit and compatibility
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Replaces OEM reference 581 18 91-01 for straightforward servicing
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Precision-machined steel shaft for strength and long service life
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Maintains accurate blade tracking to support clean and controlled cuts
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Helps reduce vibration, noise, and bearing wear
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Keyway: 61 mm x 8 mm for secure drive engagement
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Length: 46 cm (18.11 in) for correct alignment within the drive assembly
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Journal diameters: 26 mm and 17 mm for proper bearing and seal seating
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Suitable for professional site crews, hire fleets, and workshop rebuilds
Where to Use
Used to restore accurate blade rotation in Husqvarna FS400 floor saws cutting:
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Concrete slabs
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Asphalt joints
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Roads and driveways
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Construction and civil engineering surfaces
Ideal for contractors who require consistent cutting performance and reduced machine downtime.
Suitable For Models
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FS 400
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FS 400 LV
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FS400
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FS400LV
Alternative OEM Numbers
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581 18 91-01
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581189101
