Product Description
CMT Bearing 7/8" - 1/2" by CMT is a precision steel replacement bearing designed to restore smooth, accurate self-guiding performance to router bits that rely on guide bearings for edge-following and template work. With a 7/8" outer diameter and a 12.7mm bore, this ball bearing fits flush trim bits, pattern bits, rabbeting bits, and profile bits - giving woodworkers and shop professionals a direct replacement part that keeps their router bits running true along workpiece edges and templates.
Key Features
- Steel construction - provides the durability and rigidity needed to withstand the continuous friction and lateral forces generated during guided routing operations, reducing premature wear.
- 7/8" outer diameter - matches the dimensional requirement for compatible CMT router bits, ensuring a precise fit that maintains consistent cutting depth and edge alignment.
- 12.7mm bore diameter - sized to seat correctly on a 1/2" bit shank, allowing secure mounting without play or wobble that could affect cut quality.
- 7mm plate thickness - a compact profile that fits within the bearing housing of compatible router bit profiles without interfering with bit geometry or cutting edges.
- Black shield orientation - the shield must be kept right side up to correspond with bearing rotation during reassembly, ensuring proper sealing and smooth operation after installation.
Why This Product
- A worn or failed guide bearing causes chatter, burning, and inaccurate cuts - replacing it with this properly sized steel bearing restores clean, consistent edge-following performance on flush trim, pattern, rabbeting, and profile work.
- At 7/8" diameter with a 12.7mm bore, this bearing is purpose-built to the exact dimensions required by compatible CMT router bits, eliminating guesswork about fit or compatibility.
- The steel build and precision ball bearing design allow the bearing to roll freely against a template or workpiece edge, reducing friction and helping the bit track accurately without damaging the reference surface.
- Keeping a replacement bearing on hand means a single worn component does not sideline an otherwise functional router bit - extending the usable life of existing tooling and avoiding unnecessary bit replacement costs.
Specifications
- Manufacturer Part Number: 791.013.00
- Brand: CMT Orange Tools
- Product Type: Router Bit Replacement Bearing
- Outer Diameter: 7/8"
- Bore Diameter: 12.7mm
- Plate Thickness: 7mm
- Material: Steel
Approved Applications
- Replacing worn or damaged guide bearings on CMT router bits
- Flush trim bit bearing replacement
- Pattern routing bit bearing replacement
- Rabbeting bit bearing replacement
- Profile bit bearing replacement
- Use in handheld routers and router tables
Frequently Asked Questions
Does the orientation of the bearing shield matter during reassembly?
Yes. The black shield must be kept right side up to correspond with the bearing rotation during reassembly. Installing it in the wrong orientation can affect sealing and smooth operation.
What router bit types is this bearing used with?
This replacement bearing is used as a guide bearing on flush trim bits, pattern bits, rabbeting bits, and profile bits that require a 7/8" outer diameter bearing with a 12.7mm bore.
What are the key dimensions of this bearing?
The bearing has a 7/8" outer diameter, a 12.7mm bore diameter, and a 7mm plate thickness.
What material is this bearing made from?
This bearing is made of steel, providing the rigidity and durability needed to handle the lateral forces and continuous contact involved in guided routing applications.
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.