Product Description
The CMT 791.062.00 Undersized Bearing 3/8" is a precision steel replacement bearing designed to restore accurate self-guiding performance to CMT router bits after the original 791.002.00 bearing has worn. With a compact 9.3mm outer diameter and a 4.76mm bore, this undersized guide bearing is engineered for flush trim, pattern, rabbeting, and profile routing applications where a slightly reduced bearing diameter is needed to compensate for wear on the bit shank seat. Keeping your router bits running true is essential for clean, repeatable cuts - and this direct replacement component makes that possible without replacing the entire bit.
Key Features
- Steel construction - provides durability and resistance to the heat and friction generated during continuous router bit use, extending the working life of your replacement bearing.
- Undersized 9.3mm outer diameter - specifically designed for use after the 791.002.00 bearing, compensating for shank seat wear so the bit guides accurately along templates and workpiece edges without slop or wobble.
- 4.76mm bore diameter - fits the correct shank post to maintain a snug, centered fit, which is critical for precise flush trimming and pattern routing results.
- 3.2mm plate thickness - matches the dimensional envelope of the original bearing position, ensuring the replacement seats flush without altering the cutting geometry of the router bit.
- Black shield orientation - the black shield must be kept right side up to correspond with bearing rotation during reassembly, ensuring proper function and preventing premature wear after installation.
Why This Product
- Purpose-built as the correct follow-up bearing after the 791.002.00 - rather than replacing an entire router bit, this undersized bearing restores self-guiding accuracy on the same bit shank, saving cost on worn CMT bits.
- The slightly reduced outer diameter is not a compromise - it is the intentional next-step fit for a seat that has seen use, meaning you get proper bearing contact and guide performance where a standard-sized replacement would no longer seat correctly.
- Steel construction means this replacement bearing handles the demands of routing along templates and workpiece edges in flush trim and profile applications without deforming or failing prematurely under load.
- Compact dimensions (9.3mm diameter, 3.2mm thick) keep the bit profile tight and consistent, so your routing results stay accurate even after swapping in the replacement bearing.
Specifications
- Manufacturer Part Number: 791.062.00
- Brand: CMT Orange Tools
- Product Type: Undersized Replacement Router Bit Bearing
- Diameter: 9.3mm
- Bore Diameter: 4.76mm
- Plate Thickness: 3.2mm
- Material: Steel
- For Use After: CMT 791.002.00
Approved Applications
- Replacing worn guide bearings on CMT router bits
- Restoring self-guiding function on flush trim router bits
- Bearing replacement on pattern routing bits
- Guide bearing service on rabbeting and profile router bits
Frequently Asked Questions
When should I use the 791.062.00 instead of the standard 791.002.00 bearing?
The 791.062.00 is the correct replacement to install after the 791.002.00 bearing has already been used. Its undersized 9.3mm outer diameter is designed to seat properly on a shank post that has seen wear from the original bearing, restoring accurate self-guiding performance where a standard-diameter bearing may no longer fit correctly.
Does bearing orientation matter during reassembly?
Yes - orientation is critical. The black shield on this bearing must be kept right side up to correspond with the direction of bearing rotation during reassembly. Installing it upside down can cause improper function and accelerated wear, so confirm shield orientation before seating the bearing on the bit.
What is the bore diameter of the 791.062.00, and which shank post does it fit?
The bore diameter is 4.76mm. This dimension is specific to the CMT replacement bearing sequence and is intended to fit the appropriate shank post on compatible CMT router bits. Always verify your bit shank post diameter against the 4.76mm bore before installation.
What router bit types can this replacement bearing be used on?
This bearing is suitable for use as a guide bearing on flush trim bits, pattern bits, rabbeting bits, and profile bits that use the CMT 791.002.00 bearing in their original configuration - wherever a self-guiding bearing rides along a template or workpiece edge to control the cut.
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