Product Description
CMT Shields for Bearings - 1/2" Diameter (for 791.003.00) are precision-made bearing shields designed to protect and maintain CMT 1/2" bearings used in router bit and cutter head assemblies. Keeping the bearing properly shielded reduces friction, extends component life, and helps maintain clean, accurate cuts - making this a smart maintenance part for any shop that relies on CMT routing tools.
Key Features
- Designed specifically for 1/2" diameter bearings - ensures a precise, secure fit with no guesswork when replacing worn or damaged shields on compatible CMT bearings
- 4.76mm bore diameter - matches the exact bore specification of the 791.003.00 bearing, so the shield seats correctly without modification
- Part of the CMT 990.422/423 Shields for Bearings series - a purpose-built replacement component that integrates directly into the CMT bearing system for a factory-correct repair
- Compatible with the CMT 791.003.00 bearing - allows targeted replacement of the shield alone, so you can restore bearing performance without replacing the entire bearing assembly
Why This Product
- Restores bearing protection on your CMT router bits without requiring a full bearing replacement - saving cost and reducing downtime when only the shield is worn or damaged
- The exact 1/2" diameter and 4.76mm bore specification means this shield is engineered to fit the 791.003.00 bearing precisely - no adapting, shimming, or improvising required
- Sourced directly from CMT as a genuine replacement component - you get the same fit and function as the original shield that came with the bearing
- A small, targeted part that keeps your existing CMT router bit bearings running cleanly, extending the usable life of your routing accessories
Specifications
- Manufacturer Part Number: 990.423.00
- Brand: CMT Orange Tools
- Diameter: 1/2"
- Bore Diameter: 4.76mm
- Compatible Bearing: 791.003.00
- Product Series: 990.422/423 - Shields for Bearings
- Status: Active
Frequently Asked Questions
Which bearing is this shield compatible with?
This shield is designed specifically for the CMT 791.003.00 bearing. It is engineered to fit that bearing's 1/2" diameter and 4.76mm bore, so it is not a universal shield - always confirm you have the 791.003.00 bearing before ordering.
What is the bore diameter of this bearing shield?
The bore diameter is 4.76mm. This dimension is matched to the CMT 791.003.00 bearing for a precise, factory-correct fit.
Can this shield be used to repair a bearing rather than replacing the entire unit?
Yes. This shield is sold as a replacement component so that you can restore a worn or damaged 1/2" CMT bearing shield without discarding and replacing the full 791.003.00 bearing assembly.
What product series does this shield belong to?
This shield is part of the CMT 990.422/423 Shields for Bearings series, which provides purpose-built replacement shields for CMT bearings used in router bit and cutter head applications.
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