Product Description
The CMT 791.027.00 Bearing 1-1/8"-1/2" is a precision replacement guide bearing designed for CMT router bits, including flush trim, pattern, rabbeting, and profile bit styles. Built from steel with a 1 1/8 in. outer diameter and a 12.7mm bore, this ball bearing delivers smooth, self-guiding performance along template edges and workpiece profiles - making it an essential maintenance component for woodworkers who depend on consistent, accurate routing results. Whether you are restoring a worn bit to like-new performance or upgrading an existing setup, this CMT router bit bearing is engineered to keep your bits running true on both the router table and handheld router.
Key Features
- Steel construction - provides durable, long-lasting performance under the heat and friction generated during continuous routing operations
- 1 1/8 in. outer diameter - matches the guide diameter required by compatible CMT router bits, ensuring accurate edge-following without wobble or drift
- 12.7mm bore diameter - fits securely onto the bit shank for a precise, rattle-free seat that maintains concentricity during operation
- 8mm plate thickness - offers the correct bearing width to align properly with the cutting edge, supporting clean, repeatable template and edge routing
- Black shield orientation - the shield must be kept right side up to correspond with bearing rotation during reassembly, ensuring proper function after servicing
Why This Product
- Restores accurate self-guiding performance to worn CMT router bits - a direct replacement that brings flush trim, pattern, and rabbeting bits back to specification without replacing the entire bit
- Steel construction means the bearing holds up to repeated use in demanding routing applications, reducing the frequency of replacements and downtime
- The 12.7mm bore and 8mm plate thickness are matched to CMT bit geometry, so the bearing seats correctly the first time without modification or shimming
- Compatible with both handheld router and router table use, giving woodworkers flexibility across different routing setups with a single replacement bearing
Specifications
- Manufacturer Part Number: 791.027.00
- Brand: CMT Orange Tools
- Outer Diameter: 1 1/8 in.
- Bore Diameter: 12.7mm
- Plate Thickness: 8mm
- Material: Steel
- Product Type: Router Bit Replacement Bearing
Approved Applications
- Replacing worn guide bearings on flush trim router bits
- Replacing worn guide bearings on pattern router bits
- Replacing worn guide bearings on rabbeting router bits
- Replacing worn guide bearings on profile router bits
- Router table and handheld router bit maintenance
Frequently Asked Questions
What is the correct way to reinstall the bearing after servicing?
Be sure to keep the black shield right side up to correspond with the bearing rotation during reassembly. Incorrect orientation of the shield can interfere with proper bearing function.
What are the key dimensions of this replacement bearing?
This bearing has a 1 1/8 in. outer diameter, a 12.7mm bore diameter, and an 8mm plate thickness. These dimensions determine compatibility with specific CMT router bit models, so confirm your bit's bearing specifications before ordering.
What types of router bits use this bearing?
This bearing is used as a guide bearing on flush trim, pattern, rabbeting, and profile router bits. It functions as a self-guiding element that rides along a template or workpiece edge to control the cut.
Is this bearing compatible with router table use as well as handheld routers?
Yes. This replacement guide bearing is suitable for use with CMT router bits operated in both handheld routers and router tables, making it a versatile maintenance component for a range of routing setups.
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