B9U
Undersize Ball Bearing
0.490"OD, 1/4"ID
Product Description
This ball bearing is undersized by design for resharpening purposes.
- TOOL SPECS: Resharpening (undersize) Ball bearing with 1/2" outside diameter and 1/4" inside diameter.
- BALL BEARINGS: Attaches to a router bit to follow a template along the flat edge of the workpiece, ensuring accurate and consistent cuts.
- FREE SPINNING: The inside of the bearing contains multiple metal balls that allow it to roll freely without restraint.
- BEARING PILOTS: Used to adjust the horizontal cutting depth of router bits with bearing pilots, providing flexibility and precision in routing tasks.
Similar Sizes
| Part # | Outside Dia. | Inside Dia. | Application |
|---|---|---|---|
| B1A | 1/4" | 1/8" | - |
| B1 | 3/8" | 1/8" | - |
| B2 | 3/8" | 3/16" | - |
| B3 | 1/2" | 3/16" | Standard |
| B3 BLK | 1/2" | 3/16" | 100 Pc. Bulk |
| B3S | 1/2" | 3/16" | Non-Mar Nylon Sleeve |
| B3SQ | 1/2" | 3/16" | Euro-Square |
| B3U | .490" | 3/16" | for Resharpening (Undersize) |
| B4 | 3/4" | 1/4" | - |
| B5 | 7/8" | 5/16" | - |
| B6 | 5/8" | 1/4" | - |
| B7 | 5/8" | 3/16" | - |
| B8 | 3/4" | 3/16" | - |
| B8SQ | 3/4" | 3/16" | Euro-Square |
| B9 | 1/2" | 1/4" | - |
| B9U | .490" | 1/4" | for Resharpening (Undersize) |
| B11 | 1-1/8" | 1/2" | - |
| B12 | 7/8" | 3/8" | - |
| B13 | 7/8" | 1/2" | - |
| B14 | 11/16" | 3/16" | - |
| B15 | 13/16" | 3/16" | - |
| B16 | 1-1/4" | 1/2" | - |
| B17 | 1-3/8" | 1/2" | - |
| B18 | 1-1/2" | 1/2" | - |
| B19 | 3/4" | 1/2" | - |
| B20 | 3/4" | 5/16" | - |
| B21 | 7/8" | 1/4" | - |
| B24 | 1-7/8" | 1/2" | - |
| B25 | 1-1/8" | 5/16" | - |
| B26 | 1-3/8" | 5/16" | - |
| B27 | 5/8" | 5/16" | - |
| B28 | 7/8" | 3/16" | - |
| B29 | 1" | 3/16" | - |
| B33 | 9/16" | 3/16" | - |
| BB300 | 7/8" X 10° | 3/16" | Non-Mar Nylon Sleeve |
| BB315 | 7/8" X 15° | 3/16" | Non-Mar Nylon Sleeve |
| BB318 | 7/8" X 18° | 3/16" | Non-Mar Nylon Sleeve |
Whiteside also offers Bearing Accessory Kits:
BB501- 5 Piece Bearing Conversion Kit
BB600- General Bearing Repair Kit
BB701- Accessory Kit
Related Items
Ball Bearing
3/8"OD, 1/8"ID
Ball Bearings are used on a router bit to follow a template or the flat edge of your workpiece. The inside of the bearing has several metal balls that allow... View full product details
Ball Bearing
1/4"OD, 1/8"ID
Ball Bearings are used on a router bit to follow a template or the flat edge of your workpiece. The inside of the bearing has several metal balls that allow... View full product details
Ball Bearing
3/8"OD, 3/16"ID
Ball Bearings are used on a router bit to follow a template or the flat edge of your workpiece. The inside of the bearing has several metal balls that allow... View full product details
Ball Bearing
1/2"OD, 3/16"ID
Our most common Ball Bearing for your various woodworking needs. Most router bits requiring ball bearings are supplied with a B3 bearing unless otherwise noted. Ball Bearings are used on... View full product details
