Press-Fit Bushings (P)
P style drill bushings are the most-popular and least-expensive type of drill bushing. Type P bushings are permanently pressed into the jig plate, usually flush with the top surface. P style drill bushings are generally used for single-operation drilling or reaming, when you do not expect to replace bushings during the tooling's lifetime. Type P bushings can be mounted closer together than headed bushings, but offer less resistance to heavy axial loads.
Application Information
P bushings are permanently pressed into the jig plate, usually flush with the top surface.
ID Tolerance
Standard ID Tolerance:From #80 to 1/4" +0.0001/+0.0004
Over 1/4 to 3/4" +0.0001/+0.0005
Over 3/4 to 1-1/2" +0.0002/+0.0006
Over 1-1/2 and up +0.0003/+0.0007
Reamer ID Tolerance (Special):From #80 to 1/4" +0.0005/+0.0008
Over 1/4 to 3/4" +0.0006/+0.0010
Over 3/4 to 1-1/2" +0.0008/+0.0012
OD Tolerance
Standard OD Tolerance:3/4 to 1" +0.0018/+0.0015
Unground OD Tolerance:1/2 to 2-1/4" +0.020/+0.015
No-Counterbore Option on Long Bushings
Extremely long bushings with a small ID size are counterbored according to ANSI standards for proper drill-bearing length to eliminate binding and heat buildup. Add "-NCB" for applications that require these bushings without a counterbore.
Material
Material | Heat Treat | Finish | DFARS | RoHS |
1144 Stressproof steel | Heat Treated to achieve Rc 62-64 ID Hardness | - | Yes | Yes |
Parts Specification
Standard Drill Sizes (mm) | OD (Inch) | Length (Inch) |
5/16-17/32, O-Z, 7.90-13.50mm | 3/4" | 1/4" |
Warning:
This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov