Product Description
The CMT 791.020.00 Bearing 1 1/2"-1/2" is a precision steel replacement guide bearing designed to restore smooth, accurate self-guiding performance to CMT router bits. With a 1 1/2" outer diameter and a 12.7mm bore, this bearing fits the 1/2" shank family of CMT flush trim, pattern, rabbeting, and profile router bits - giving woodworkers a reliable way to extend the working life of their existing bit inventory without replacing the entire bit.
Key Features
- Steel construction - provides durability and long service life under continuous router operation, holding up to the friction and heat generated during guided routing cuts
- 1 1/2" outer diameter - matches the original CMT bearing specification for flush trim, pattern, and profile bits, ensuring accurate edge-following and consistent cut depth without guesswork
- 12.7mm bore diameter - sized to seat correctly on 1/2" shank router bits, eliminating play or wobble that could compromise cut quality
- 13.3mm plate thickness - provides the correct clearance between the bearing and the workpiece, maintaining proper cutting geometry on compatible CMT bits
- Black shield orientation - the black shield must face the correct direction to correspond with bearing rotation during reassembly, making reinstallation straightforward when you know to align it properly before seating the bearing
Why This Product
- Replacing a worn or seized guide bearing costs a fraction of buying a new router bit - this CMT replacement bearing restores full guided routing capability to bits that still have serviceable carbide edges
- Precise dimensional matching - 1 1/2" diameter, 12.7mm bore, and 13.3mm plate thickness - means the bearing reinstalls like the original, preserving the cutting geometry the bit was designed to deliver
- Steel construction means the bearing resists deformation under the lateral loads generated during pattern and flush trim routing, keeping the guide surface stable throughout the cut
- Compatible with flush trim, pattern, rabbeting, and profile router bit styles, making this a practical stock item for shops that run multiple CMT bit types and need a single bearing size on hand for maintenance
Specifications
- Manufacturer Part Number: 791.020.00
- Brand: CMT Orange Tools
- Product Type: Router Bit Bearing
- Diameter: 1 1/2"
- Bore Diameter: 12.7mm
- Plate Thickness: 13.3mm
- Material: Steel
Approved Applications
- Replacing worn or damaged guide bearings on CMT flush trim router bits
- Replacing guide bearings on CMT pattern routing bits
- Replacing guide bearings on CMT rabbeting bits
- Replacing guide bearings on CMT profile bits
- Use in handheld routers and router tables
Frequently Asked Questions
How do I know which direction the black shield should face when reinstalling this bearing?
The black shield must face the correct direction to correspond with the bearing's rotation direction during operation. Before pressing the bearing back onto the bit, confirm the shield orientation matches the original position so the bearing seats and rotates as intended.
What router bit styles is this 1 1/2" bearing compatible with?
This bearing is used as a guide bearing on flush trim bits, pattern bits, rabbeting bits, and profile bits that accept a 1 1/2" outer diameter bearing with a 12.7mm bore.
Can this bearing be used on a router table as well as a handheld router?
Yes. The bearing is suitable for use in both handheld router and router table setups wherever guided routing with a compatible CMT bit is required.
What is the plate thickness of this bearing, and why does it matter?
The plate thickness is 13.3mm. This dimension determines the correct spacing between the bearing face and the workpiece or template, which directly affects cut accuracy and consistency when using the bit in guided routing applications.
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