Product Description
CMT 791.031.00 Router Bit Bearing - 1 3/8" Diameter, 8mm Bore by CMT is a precision steel replacement bearing designed to keep your router bits guiding smoothly and accurately along templates and workpiece edges. Whether you are restoring performance to a worn flush trim bit or upgrading the guide bearing on a rabbeting or profile bit, this 1 3/8" outer diameter bearing with an 8mm bore delivers consistent, self-guiding action on routers and router tables alike.
Key Features
- Steel construction - provides durable, long-lasting performance in demanding routing applications, resisting deformation under the lateral forces generated during guided cuts.
- 1 3/8" outer diameter - matches the guide bearing size required by compatible CMT router bits, ensuring a precise fit that maintains accurate depth and profile control along templates or workpiece edges.
- 8mm bore diameter - sized to fit the corresponding arbor or shank of compatible router bits, keeping the bearing firmly seated and reducing unwanted play during cuts.
- 11.6mm plate thickness - matches the original bearing profile so the replacement integrates seamlessly without altering cut depth or bit geometry.
- Black shield orientation guidance - the black shield must be kept right side up to correspond with bearing rotation during reassembly, helping ensure correct installation and smooth bearing operation after replacement.
Why This Product
- A worn or seized guide bearing causes burning, tear-out, and inaccurate profiles - this direct replacement restores clean, smooth self-guiding performance on flush trim, pattern, rabbeting, and profile bits without replacing the entire bit.
- The exact 1 3/8" outer diameter and 8mm bore are matched to CMT router bit specifications, eliminating guesswork about fitment and reducing the risk of a loose or oversized bearing that could compromise cut accuracy.
- At 11.6mm plate thickness, this bearing replaces the original component dimension for dimension, so no additional shimming or adjustment is needed after installation.
- Compatible with both handheld routers and router tables, making this bearing a practical solution for shop environments where multiple machine setups are in use.
Specifications
- Manufacturer Part Number: 791.031.00
- Brand: CMT Orange Tools
- Product Type: Router Bit Bearing
- Diameter: 1 3/8"
- Bore Diameter: 8mm
- Plate Thickness: 11.6mm
- Material: Steel
Approved Applications
- Replacing worn guide bearings on CMT router bits
- Flush trim bits - restoring accurate self-guiding along template edges
- Pattern bits - maintaining consistent contact with the pattern surface
- Rabbeting bits - ensuring controlled depth and edge tracking during rabbet cuts
- Profile bits - keeping the bearing guide running cleanly against the workpiece edge
- Use with handheld routers and router tables
Frequently Asked Questions
What is the correct way to reassemble this bearing after replacement?
The black shield must be kept right side up to correspond with the bearing rotation during reassembly. Reversing the shield orientation can interfere with proper bearing operation, so confirm shield direction before finalizing installation.
Which CMT router bit types is this bearing designed to replace?
This bearing is intended as a replacement or upgrade guide bearing for CMT router bits, including flush trim, pattern, rabbeting, and profile bits that use a 1 3/8" outer diameter bearing with an 8mm bore.
Will this bearing work on a router table as well as a handheld router?
Yes. This replacement bearing is compatible with both handheld router and router table setups, making it versatile for different shop configurations where CMT router bits are used.
How do I know this bearing will fit without altering my cut depth?
The plate thickness of this bearing is 11.6mm, matching the original bearing profile. Because the replacement shares the same outer diameter, bore, and thickness as the original, no adjustments to bit height or cut depth settings are typically needed after swapping the bearing.
Reviews
FAQs
Standard Shipping is free on most orders over $50 within the contiguous US. If the order is under $50.00, the shipping is $9.99 set fee for shipping within the contiguous US.
Most of our products will ship within 1 to 3 Business Days. Some Special order products will ship within 2 to 5 Business Days. Preorders will be shipped to you on a first come first serve basis as soon as available from the manufacturer. Items that are "Made-to-Order" (Custom order products) will be shipped when fabrication is completed, shipping and delivery times will vary and depend on manufacturing.
Products that are shipped directly from the manufacturer will have processing and fulfilment times subject to manufacturer availability.
Preorders are shipped on a first come first serve basis as soon as available from the manufacturer, the sooner you place your Preorder the sooner your order will ship.
Freight shipping Policy:
Orders/Items too large or heavy may require special handling/Shipping and may require to be sent by truck. Someone must be present to accept truck deliveries. Standard truck delivery is to a dock facility designed to receive freight. You will be notified within 24 hours of ordering to confirm delivery. Lift gates for deliveries are available for an additional fee.
We offer Financing options through Clicklease
Please email your Return request to info@FactoryDirectSupplyOnline.com
Include the order number and the reason for your return.
All returns, regardless of their categorization, must include all original parts, be in their original packaging, and in the condition in which they were received. You may not qualify to receive a refund If the returned item is used, damaged, missing any parts, or is damaged during return shipping.
Checkout our complete Return policy
You can contact us through our contact page! We will be happy to assist you.