Exact 3/8-Inch OD Variant
Item Code 791.002.00 is the official Series 791 bearing with a 3/8-inch outside diameter, 3/16-inch bore, and 3.2 mm width.
CMT Orange Tools Guide Bearing 3/8" OD x 3/16" Bore x 3.2mm Wide
CA$999.99
In stock
SKU
791.002.00
Product Type
Shielded guide bearing / router-bit bearing
Family / Series
CMT Series 791 Bearings
Outside Diameter
3/8 inch · 9.5 mm
Bore Diameter
3/16 inch · 4.76 mm
Width
3.2 mm
Compatibility
Selected CMT bearing-guided router-bit assemblies
Verified Family
Series 7/8/939 beading bits and compatible 7/8/938 roundover bits
Reassembly
Keep the black shield right side up
After Resharpening
Use 791.062.00 undersized 9.3 mm bearing where specified
Series 791
Guide Bearing
791 — Bearings
CMT 791.002.00 is the exact 3/8-inch outside-diameter variant in the official Series 791 bearing family. It combines a 3/16-inch bore and 3.2 mm width—equivalent to 9.5 × 4.76 × 3.2 mm—for compatible CMT bearing-guided router-bit assemblies. The bearing is separately orderable non-cutting hardware and must be reassembled with the black shield facing upward as specified by CMT.
3/8 inOutside Diameter (D)
3/16 inBore Diameter (B)
3.2 mmBearing Width (P)
9.5 mmMetric Outside Diameter
Guide Bearing
A compact shielded guide bearing for compatible CMT router-bit assemblies. The official Series 791 row identifies D = 3/8 inch, B = 3/16 inch, and P = 3.2 mm.
CMT Orange ToolsNon-Cutting Accessory3/8-Inch ODSKU 791.002.00
Use only where the exact parent-tool row lists bearing 791.002.00. Confirm the 3/16-inch mounting interface, correct shields and hardware, free rotation, secure fastening, and black-shield orientation before operating the router or router table.
Main Product Description
CMT 791.002.00 is the exact bearing item in the official Series 791 Spare Parts and Accessories family. The North American row specifies a 3/8-inch outside diameter, 3/16-inch bore, and 3.2 mm width. CMT’s metric table lists the same dimensions as 9.5 × 4.76 × 3.2 mm.
The bearing functions as a guide or profile-control component on compatible bearing-guided router bits. CMT specifically identifies 791.002.00 across the Series 7/8/939 beading-bit family and explains that fitting this smaller bearing to compatible Series 7/8/938 roundover bits creates the beading profile.
The bearing is separately orderable and does not include the router bit, bearing shield, fastening screw, or hex key. On current 7/8/939 assemblies, CMT lists shield 990.422.00, screw 990.058.00, and hex key 991.057.00 alongside bearing 791.002.00. After resharpening, CMT’s 2026 catalog recommends the undersized 791.062.00 bearing at 9.3 mm where specified.
Technical Specifications
Series 791 · SKU 791.002.00
- CMT Orange Tools
- Shielded guide bearing / router-bit bearing
- 791.002.00
- 791 — Bearings
- 3/8 in · 9.5 mm
- 3/16 in · 4.76 mm
- 3.2 mm
- 9.5 × 4.76 × 3.2 mm
- Non-cutting accessory
- Not applicable
- Not applicable
- Black shield right side up during reassembly
- Primary Compatibility: Selected CMT bearing-guided router-bit assemblies · Verified Family Reference: 7/8/939 beading bits · Roundover Conversion Reference: Compatible 7/8/938 roundover bits · Related Bearing Shield: 990.422.00 on verified 7/8/939 rows · Related Screw: 990.058.00 on verified 7/8/939 rows · Related Hex Key: 991.057.00 on verified 7/8/939 rows · After-Resharpening Option: 791.062.00 undersized bearing · 9.3 mm OD · Included Components: Bearing only · Dedicated Titan Image: /media/wysiwyg/titan/CMT-Bearing-791.jpg
- Use only where the exact parent-tool row lists bearing 791.002.00. Confirm the 3/16-inch mounting interface, correct shields and hardware, free rotation, secure fastening, and black-shield orientation before operating the router or router table.
Best Fit Applications
Series 7/8/939 Beading Bits
Compatible 7/8/938 Roundover Bits
Bearing-Guided Profile Routing
Replacement & Service Use
Routers & Router Tables
Product Highlights
Verified Beading-Bit Reference
CMT lists this bearing throughout the Series 7/8/939 beading-bit family and uses it to create a beading profile on compatible 7/8/938 roundover bits.
Official Reassembly Guidance
CMT specifies keeping the black shield right side up during reassembly and lists the 9.3 mm 791.062.00 undersized bearing after resharpening where applicable.
Compatibility & Installation Notes
Confirm exact Item Code 791.002.00 and dimensions 3/8 × 3/16 × 3.2 mm before installation. Use only on a compatible CMT assembly that explicitly lists this bearing. Inspect the bearing for roughness, play, shield damage, contamination, or binding; replace damaged components. Reassemble with the black shield right side up, use the exact shield and fastening hardware specified by the parent-tool row, and confirm free bearing rotation before use. After the parent cutter is resharpened, follow CMT’s catalog guidance on substituting undersized bearing 791.062.00 at 9.3 mm where required. The router bit, shield, screw, and hex key are not included.
Verified 3/8-Inch Guide-Bearing Fit for Compatible CMT Profiles
CMT 791.002.00 combines a 3/8-inch outside diameter, 3/16-inch bore, and 3.2 mm width in the official Series 791 replacement-bearing format.
Verified use across Series 7/8/939 beading bits, official black-shield orientation guidance, and the related after-resharpening bearing option complete the service-accessory record.