Product Description
The CMT Delrin Triangular Bearing - 3/4" x 3/16" is a precision replacement bearing designed specifically for solid surface router bits. Built from Delrin - a durable engineering-grade polymer - this triangular bearing provides smooth, accurate guiding along templates and workpiece edges, making it an essential maintenance component for flush trim, pattern, and profile routing operations. Keeping your router bit bearings in top condition directly translates to cleaner cuts, reduced friction, and a longer service life for your bits.
Key Features
- Delrin bearing material - engineered specifically for solid surface router bits, providing smooth rotation and reduced friction during guided routing passes.
- Triangular bearing profile - the distinctive triangular shape is designed to seat and align precisely within compatible CMT router bit assemblies, ensuring accurate, repeatable results.
- 3/4" outer diameter with 4.76mm bore - matches the dimensions of compatible CMT router bit bearing seats, so you get a proper, rattle-free fit without modification.
- 7mm plate thickness - provides the correct depth engagement for compatible router bit configurations, maintaining proper bit geometry and cutting height.
- Black shield orientation requirement - the bearing includes a directional black shield that must be positioned right side up to correspond with bearing rotation during reassembly, ensuring correct performance and longevity.
Why This Product
- Solid surface routing accuracy - this bearing is designed expressly for solid surface router bits, so woodworkers and fabricators working with solid surface materials get a component matched to the demands of that specific application rather than a generic substitute.
- Correct fitment by specification - with a 3/4" diameter, 4.76mm bore, and 7mm plate thickness, this bearing matches the precise dimensional requirements of compatible CMT router bit assemblies, eliminating guesswork when replacing a worn or damaged bearing.
- Restores bit performance - replacing a worn guide bearing on a router bit is one of the most cost-effective ways to restore cutting accuracy and smooth template-following capability without replacing the entire bit.
- Proper reassembly guidance included - the directional black shield orientation instruction helps ensure the bearing is reinstalled correctly, protecting both the bearing and the router bit from premature wear caused by incorrect assembly.
Specifications
- Manufacturer Part Number: 791.043.00
- Brand: CMT Orange Tools
- Product Type: Delrin Triangular Bearing
- Outer Diameter: 3/4"
- Bore Diameter: 4.76mm
- Plate Thickness: 7mm
Approved Applications
- Replacement guide bearing for solid surface router bits
- Use with compatible CMT router bit assemblies requiring a 3/4" triangular Delrin bearing
- Restoring smooth template-following performance on worn router bits used in router and router table setups
Frequently Asked Questions
What type of router bits is this bearing designed for?
This Delrin triangular bearing is designed specifically for solid surface router bits. It is a replacement and maintenance component for compatible CMT router bit assemblies that use a 3/4" outer diameter triangular bearing configuration.
What does the black shield on the bearing do, and does orientation matter?
Yes, orientation matters. The black shield must be positioned right side up to correspond with the bearing rotation during reassembly. Installing the shield in the wrong direction can affect bearing performance and lead to premature wear, so it is important to confirm correct orientation before fully reassembling the bit.
What are the key dimensions of this bearing?
This bearing has a 3/4" outer diameter, a 4.76mm bore diameter, and a 7mm plate thickness. These dimensions are critical for confirming compatibility with your specific CMT router bit before ordering.
Can this bearing be used on a router table as well as a handheld router?
Yes. Because this is a replacement bearing component for compatible solid surface router bits, those bits can be used in both handheld router and router table setups - the bearing itself functions the same way in either application, guiding the bit along a template or workpiece edge.
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