CMT Bearing Shield for 1/2-Inch (12.7 mm) Bearing
Bearing Shield
1/2 Inch · 12.7 mm
CMT 990.423.00 is a separately sold replacement shield for a 1/2-inch (12.7 mm) guide bearing. It helps limit wood-shaving and debris entry around compatible bearing assemblies, including CMT bearing 791.003.00.
Main Product Description
CMT 990.423.00 is the exact replacement shield for compatible 1/2-inch (12.7 mm) guide-bearing assemblies. The shield helps protect the bearing area from wood shavings and machining debris that can interfere with bearing movement.
This SKU identifies the shield only. The 1/2-inch (12.7 mm) bearing, router bit, screw, washers, and any other mounting components are not represented as included.
CMT bearing 791.003.00 is a verified compatibility reference for this shield. Final selection must still be based on the exact CMT host-tool drawing or spare-parts list because bearing diameter alone does not establish the complete assembly fit.
Best Fit Applications
Product Highlights
Verified Dual-Unit Fit
Designed for compatible 1/2-inch (12.7 mm) guide-bearing applications.
Debris Protection
Helps prevent wood shavings and machining debris from entering the bearing area.
Exact Spare Component
SKU 990.423.00 identifies the shield alone for controlled replacement selection.
Compatibility & Installation Notes
Confirm exact Item Code 990.423.00 and the complete host-tool parts list before installation. The bearing and other assembly parts are not included. Disconnect and isolate the machine, inspect the bearing and mounting hardware, preserve the specified component order and clearances, and replace any worn or damaged parts before returning the tool to service.
Exact Shield Replacement for 1/2-Inch Bearing Systems
CMT 990.423.00 provides the verified shield format for compatible 1/2-inch (12.7 mm) guide-bearing assemblies, including bearing reference 791.003.00.
Correct Item Code selection, component order, bearing condition, fastening, and clearance checks are essential to a reliable repair.