Product Description
CMT Replacement Router Bit Bearing - 1/2" Outer Diameter, 1/4" Bore is a precision steel guide bearing designed for use with CMT router bits. This replacement bearing keeps flush trim, pattern, rabbeting, and profile bits running smoothly and accurately by guiding the cutting edge along a template or workpiece edge. When a router bit bearing wears out or loses its smooth spin, routing quality drops fast - this direct replacement restores clean, self-guided cuts on routers and router tables alike.
Key Features
- Steel construction - provides durable, long-lasting performance in demanding routing applications where repeated contact with workpiece edges occurs.
- 1/2" outer diameter with 6.35mm bore - precise dimensions ensure a correct fit on compatible CMT router bits, maintaining accurate guidance along templates and edges without slop or wobble.
- 4.8mm plate thickness - compact profile allows the bearing to seat properly within the bit assembly, keeping the cutting geometry consistent for clean, repeatable results.
- Black shield orientation required during reassembly - the directional shield must face the correct side to correspond with bearing rotation, ensuring proper function and preventing premature wear after installation.
Why This Product
- A worn or frozen guide bearing causes tear-out, burning, and inaccurate edges - replacing it with this bearing restores smooth, self-guided routing performance without replacing the entire bit.
- The 1/2" outer diameter and 6.35mm bore match the specifications of compatible CMT router bits used on flush trim, pattern, rabbeting, and profile work - making it a direct drop-in replacement rather than a general-purpose approximation.
- Steel construction stands up to the friction and heat generated during repeated contact with workpieces and templates, making this a reliable choice for both shop use and production routing environments.
- With a 4.8mm plate thickness, this bearing fits properly within the original bit assembly without requiring modifications, so reassembly is straightforward and the bit returns to factory-correct geometry.
Specifications
- Manufacturer Part Number: 791.010.00
- Brand: CMT Orange Tools
- Product Type: Router Bit Bearing
- Outer Diameter: 1/2"
- Bore Diameter: 6.35mm
- Plate Thickness: 4.8mm
- Material: Steel
Approved Applications
- Replacing worn or damaged guide bearings on CMT router bits
- Flush trim bit bearing replacement
- Pattern bit guide bearing replacement
- Rabbeting bit bearing replacement
- Profile bit guide bearing replacement
- Router and router table use
Frequently Asked Questions
Does the orientation of the black shield matter during reassembly?
Yes - the black shield must be kept right side up to correspond with the bearing rotation during reassembly. Incorrect orientation can cause the bearing to function improperly and wear prematurely.
What type of router bits is this bearing intended for?
This bearing is used as a guide bearing on flush trim, pattern, rabbeting, and profile router bits. It is a replacement or upgrade bearing for compatible CMT router bits with a 6.35mm bore and 1/2" outer diameter.
What are the exact dimensions of this bearing?
The outer diameter is 1/2", the bore diameter is 6.35mm, and the plate thickness is 4.8mm. Confirming these measurements against your existing bearing before ordering ensures a correct fit.
Can this bearing be used on a router table as well as a handheld router?
Yes - this replacement guide bearing is suitable for use with router bits mounted in both handheld routers and router tables, wherever the compatible CMT router bit is being used.
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