Product Description
CMT Bearing 3/8" - 3/16" is a precision replacement guide bearing from CMT, designed to keep your router bits tracking accurately along templates and workpiece edges. Whether you are restoring a worn flush trim bit, upgrading a rabbeting bit, or maintaining a profile bit, this compact steel ball bearing delivers the smooth, consistent rotation needed for clean, repeatable cuts. Its small form factor - with a 3/8 in. outer diameter and a 3.2mm plate thickness - makes it an ideal fit for router bits that require a narrow, low-profile guide bearing.
Key Features
- Steel construction - provides durability and resistance to the heat and friction generated during routing, extending service life on demanding jobs.
- 3/8 in. outer diameter - sized for router bits that guide along narrow template edges or require a tight bearing profile, giving you precise edge-following control.
- 4.76mm bore diameter - machined to close tolerances so the bearing seats firmly on the bit shank without play, ensuring accurate, wobble-free guidance.
- 3.2mm plate thickness - the slim profile keeps the bearing compact and lightweight, reducing interference with the cutting path and allowing use on thinner workpieces.
- Black shield orientation matters - the black shield must be kept right side up to correspond with bearing rotation during reassembly, ensuring correct performance after installation.
Why This Product
- Direct replacement for CMT router bits - restores worn or damaged guide bearings on flush trim, pattern, rabbeting, and profile bits so your existing bits perform like new without full replacement.
- Precise dimensional specs for confident fitment - the 4.76mm bore and 3/8 in. outer diameter are exact spec values, removing guesswork when matching the bearing to your bit.
- Steel build for demanding routing conditions - the all-steel construction holds up through repeated use in router and router table applications where heat and lateral load are constant factors.
- Maintains edge-guiding accuracy - a properly seated replacement bearing restores the smooth, self-guiding rotation needed to follow templates and edges cleanly, protecting both the workpiece and the bit.
Specifications
- Manufacturer Part Number: 791.002.00
- Brand: CMT Orange Tools
- Product Type: Router Bit Replacement Bearing
- Outer Diameter: 3/8 in.
- Bore Diameter: 4.76mm
- Plate Thickness: 3.2mm
- Material: Steel
Approved Applications
- Replacing worn guide bearings on flush trim router bits
- Replacing guide bearings on pattern router bits
- Replacing guide bearings on rabbeting router bits
- Replacing guide bearings on profile router bits
- Use in handheld routers and router tables
Frequently Asked Questions
What router bit types is this bearing compatible with?
This bearing is used as a guide bearing replacement on flush trim, pattern, rabbeting, and profile router bits that accept a 3/8 in. outer diameter bearing with a 4.76mm bore.
Does the orientation of the black shield matter during reinstallation?
Yes - it is important to keep the black shield right side up to correspond with the bearing rotation during reassembly. Incorrect orientation can affect bearing performance.
What is this bearing made of?
The bearing is made of steel, which provides the durability and heat resistance needed for guide bearing applications in router and router table use.
Can this bearing be used in a router table as well as a handheld router?
Yes. This replacement guide bearing is suitable for use with router bits run in both handheld routers and router tables, as long as the bit accepts the 3/8 in. outer diameter and 4.76mm bore dimensions.
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