DeWalt 644999-00 Arbor Bushing – Genuine OEM Replacement Miter Saw Blade Arbor Bushing
Part Number: 644999-00
Category: Miter Saw Parts → Blade Mounting Components → Arbor Bushings
Type: DeWalt 644999-00 Arbor Bushing – Genuine OEM Replacement Miter Saw Blade Arbor Bushing
The DeWalt 644999-00 Arbor Bushing is a genuine OEM replacement blade mounting component designed for compatible DeWalt miter saws. This precision-machined metal bushing fits on the arbor (spindle) and helps properly position and secure the saw blade for safe, accurate cutting. Manufactured to original equipment specifications, it provides a direct-fit replacement for worn, damaged, or missing arbor bushings, helping restore proper blade alignment and minimize blade wobble during operation.
Key Features & Benefits
- Part Number: 644999-00
- Genuine OEM DeWalt replacement part
- Precision arbor bushing for compatible miter saws
- Helps properly center and secure the saw blade
- Supports accurate blade alignment
- Durable metal construction for long service life
- Direct-fit OEM replacement
- Manufactured to original equipment specifications
Technical Specifications
Part Number: 644999-00
Manufacturer: DeWalt
Product Type: Arbor Bushing
Material: Metal
Application: Miter Saw Blade Arbor Assembly
OEM Part: Yes
Quantity: Sold Individually
Compatible Applications
The DeWalt 644999-00 Arbor Bushing fits numerous compatible DeWalt miter saws, including:
DeWalt
- DW706
- DW716
- DW716XPS
- DW717
- DW718
- DWS709
- DWS779
- DWS780
- DWS782
- DHS716
- DHS790
Always verify your saw model, type number, and original part number before ordering to ensure proper compatibility.
Function of the Arbor Bushing
The 644999-00 Arbor Bushing is designed to:
- Position the saw blade correctly on the arbor
- Help secure the blade during operation
- Maintain proper blade alignment
- Reduce blade wobble and vibration
- Promote accurate, consistent cuts
- Restore the factory blade mounting system
Common Signs Replacement Is Needed
Replace the arbor bushing if you notice:
- Excessive blade wobble
- Difficulty mounting the blade securely
- Visible wear, scoring, or deformation
- Blade alignment issues
- Damaged or missing bushing
- Reduced cutting accuracy
A worn or damaged arbor bushing can prevent the blade from seating correctly, affecting both cutting precision and safe operation.
Installation & Service Notes
Disconnect the miter saw from the power source before performing any maintenance.
Remove the blade bolt, outer clamp, and saw blade using the appropriate wrench. Inspect the existing 644999-00 Arbor Bushing for wear or damage, then remove it from the arbor. Clean the arbor shaft and surrounding mounting surfaces before installing the replacement bushing. Reinstall the blade and blade clamps in the correct order, tighten the arbor bolt to the manufacturer's specifications, and rotate the blade by hand to verify proper alignment and free movement before operating the saw.
Important: Always verify your saw model and original part number before ordering. Inspect the blade flanges, arbor bolt, and blade itself during replacement to ensure the complete blade mounting assembly is in good condition.
Maintenance Recommendations
- Inspect the arbor bushing whenever changing the saw blade.
- Keep the arbor and blade mounting surfaces clean and free of sawdust or resin buildup.
- Replace worn or damaged blade mounting components promptly.
- Always tighten the arbor bolt to the manufacturer's recommended torque.
- Use only blades that match your saw's arbor and diameter specifications.
- Use genuine OEM replacement parts to maintain factory fit, blade alignment, and long-term miter saw performance.
