Whiteside B21 Ball Bearing, 7/8″ OD, 1/4″ ID
$17.02
- Whiteside part no. B21
- Outside Diameter: 7/8"
- Inside Diameter: 1/4"
Application
All 29 items in Whiteside Ball Bearing →
Whiteside B21 — Ball Bearing, 7/8" OD, 1/4" ID.
- Outside Diameter: 7/8"
- Inside Diameter: 1/4"
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 the bearing to freely roll without restraint.
- TOOL SPECS: Ball bearing with 7/8″ 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.
Whiteside catalog page 36.
| Part No. | B21 |
|---|---|
| Series | Ball Bearing |
| Description | Ball Bearing, 7/8" OD, 1/4" ID |
| Outside Diameter | 7/8" |
| Inside Diameter | 1/4" |
| Part No. | Outside Diameter | Inside Diameter | Application | Price |
|---|---|---|---|---|
| B1A | 1/4" | 1/8" | $7.29 Add to cart | |
| B1 | 3/8" | 1/8" | $6.07 Add to cart | |
| B2 | 3/8" | 3/16" | $5.48 Add to cart | |
| B3 BLK | 1/2" | 3/16" | 100 pcs. Bulk | $397.00 Add to cart |
| B3 | 1/2" | 3/16" | Standard | $5.48 Add to cart |
| B9 | 1/2" | 1/4" | $6.07 Add to cart | |
| B33 | 9/16" | 3/16" | $14.60 Add to cart | |
| B7 | 5/8" | 3/16" | $5.34 Add to cart | |
| B6 | 5/8" | 1/4" | $4.87 Add to cart | |
| B27 | 5/8" | 5/16" | $10.95 Add to cart | |
| B14 | 11/16" | 3/16" | $10.35 Add to cart | |
| B8 | 3/4" | 3/16" | $7.29 Add to cart | |
| B4 | 3/4" | 1/4" | $4.87 Add to cart | |
| B20 | 3/4" | 5/16" | $12.16 Add to cart | |
| B19 | 3/4" | 1/2" | $15.20 Add to cart | |
| B15 | 13/16" | 3/16" | $11.55 Add to cart | |
| B28 | 7/8" | 3/16" | $13.38 Add to cart | |
| B21 | 7/8" | 1/4" | $17.02 Add to cart | |
| B5 | 7/8" | 5/16" | $4.87 Add to cart | |
| B12 | 7/8" | 3/8" | $9.73 Add to cart | |
| B13 | 7/8" | 1/2" | $12.77 Add to cart | |
| B29 | 1" | 3/16" | $13.38 Add to cart | |
| B25 | 1-1/8" | 5/16" | $18.25 Add to cart | |
| B11 | 1-1/8" | 1/2" | $6.07 Add to cart | |
| B16 | 1-1/4" | 1/2" | $19.46 Add to cart | |
| B26 | 1-3/8" | 5/16" | $18.25 Add to cart | |
| B17 | 1-3/8" | 1/2" | $19.46 Add to cart | |
| B18 | 1-1/2" | 1/2" | $19.46 Add to cart | |
| B24 | 1-7/8" | 1/2" | $23.12 Add to cart |
Brand
Whiteside
Need This Tool Customized?
Every machining application is different. If this tool is close to what you need but not an exact fit, General Cutting Tools can help modify it for your specific job, machine, material, or production requirement.
We work with CNC shops, industrial manufacturers, tool rooms, and production facilities to provide tool modifications that improve fit, function, performance, and efficiency. Whether you need a small adjustment or a more specialized cutting tool solution, our team can review your requirements and recommend the best option.
Custom tool modifications can help reduce setup time, improve accuracy, extend tool life, solve clearance issues, and support more consistent production results.
Common Tool Customization Options
Diameter and OD Modifications
We can modify tool diameters to better match your application requirements, including cutting diameter changes, OD modifications, pilot diameter adjustments, step diameters, and shank diameter modifications.
Bore Modifications for Saw Blades
Custom saw blade bore modifications are available for hole diameter changes, pinholes, mounting holes, and keyway cutouts to help match your machine setup and cutting requirements.
Length Adjustments
Tools can be modified for specific reach, clearance, or setup needs. This may include overall length changes, flute length adjustments, reduced neck sections, extended reach designs, or shortened tools for improved rigidity.
Shank Modifications
Shank modifications can help ensure the tool fits properly in your holder, spindle, or machine setup. Common options include shank diameter changes, flats, Weldon flats, reduced shanks, and custom holding requirements.
Radius, Chamfer, and Corner Changes
We can customize corner radius, chamfer angles, edge breaks, and other profile details to meet part print requirements or improve cutting performance.
Step Tool Modifications
For applications that require multiple diameters or operations in a single tool, we can create or modify step tools to help reduce tool changes and improve production efficiency.
Flute and Cutting Edge Adjustments
Depending on the tool and application, flute length, cutting edge geometry, end cutting features, relief angles, and cutting edge shape may be modified to improve chip evacuation, cutting action, and tool performance.
Regrinding and Resharpening
Many cutting tools can be reground or resharpened to restore performance, extend tool life, and reduce replacement costs.
Custom Profiles and Special Forms
For unique part features, we can help provide special forms, custom profiles, custom radi