Description
Carbitool TB7 — Router Bit Ball Bearing available at Alltools Geelong. Shop our full Router Bit Ball Bearing range in Geelong.
Carbitool
TB7 Ball Bearing for Router Bits — 1/2″ OD x 1/4″ ID
Part No: TB7 | Product Group: R739 | Discount Group: Z0904
The Carbitool TB7 is a mid-series replacement bearing with a 1/2″ OD and 1/4″ ID bore. Suits a range of Carbitool profile and flush trim bits where a 1/2″ OD bearing is used as the guide. Verify your bit’s bearing seat OD before ordering.
1/2″ OD (12.70mm)
1/4″ ID (6.35mm)
5/32″ Width (3.97mm)
Sealed Bearing
Replacement Part
Key Features & Benefits
- Precision-ground sealed bearing — smooth, consistent rotation keeps profile bits tracking true against the workpiece edge without chatter or drift.
- Easy field replacement — when a bearing wears, seizes, or runs rough, swap it out rather than replacing the whole bit assembly.
- Genuine Carbitool part — matched to Carbitool router bit bearing seats for correct fit and clearance.
- Keep bearings clean and lightly oiled — clean in acetone or glue solvent after use; apply a drop of light machine oil to maximise service life.
When to Use This Bearing
The TB7 suits Carbitool and compatible profile bits that use a 1/2″ OD x 1/4″ ID bearing. If your existing bearing has seized or is running rough, a TB7 replacement restores accurate guidance without replacing the full bit. Always clean the bearing seat before fitting.
Pro Tip: After routing in resin-heavy timbers or materials with adhesive, clean bearings immediately in acetone or glue solvent — dried glue in the bearing race is the most common cause of premature bearing failure. A drop of light machine oil after cleaning keeps it spinning freely.
Product Specifications
| Part No. | OD inch | OD mm | ID inch | ID mm | Width inch | Width mm | Barcode |
|---|---|---|---|---|---|---|---|
| TB6 | 1/4″ | 6.35 | 7/64″ | 2.78 | 5/64″ | 1.98 | 9314350009585 |
| TB7 ★ | 1/2″ | 12.70 | 1/4″ | 6.35 | 5/32″ | 3.97 | 9314350009479 |
| TB8 | 5/8″ | 15.88 | 3/16″ | 4.76 | 3/16″ | 4.76 | 9314350007635 |
| TB9 | 3/8″ | 9.53 | 1/8″ | 3.18 | 9/64″ | 3.57 | 9314350007642 |
| TB10 | 3/8″ | 9.53 | 5/32″ | 3.97 | 9/64″ | 3.57 | 9314350007659 |
| TB11 | 1/2″ | 12.70 | 3/16″ | 4.76 | 3/16″ | 4.76 | 9314350007666 |
★ You are viewing the highlighted variant. Other sizes in this series are also available.
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