Carr Lane SF-32-12-.3125 | 0.312" Inner Diameter x 1/2 Outer Diameter x 3/4" Length Fixed Renewable Bushing (SF)

Product Information

SF drill bushings are replaceable bushings generally used with a liner bushing and lock screw. Use SF bushings when you expect to replace bushings during the tooling's lifetime, or to switch bushings to perform multi-step operations with the same tooling. SF bushings combine the benefits of older S-type slip-renewable and F-type fixed renewable bushings: one side of SF drill bushings feature a lock screw recess for fixed mounting; the other has a locking recess that allows the bushing to slip down, then rotate to lock in place. Quick-Ship Drill Bushings are popular bushing sizes that we do our best to keep in stock and ready for same-day shipment 100% of the time. These bushings include most common ID drill sizes. Complete part numbers for all quick-ship P bushings are listed in the tables below.

Technical Information

Click here for Standard Drill Sizes

Application Information

These replaceable bushings are generally used with a liner bushing and lock screw.

ID Tolerance

Standard ID Tolerance:          From #80 to 1/4" +.0001/+.0004          Over 1/4 to 3/4" +.0001/+.0005          Over 3/4 to 1-1/2" +.0002/+.0006          Over 1-1/2 an up  +.0003/+.0007Reamer ID Tolerance (Special):          From #80 to 1/4" +.0005/+.0008          Over 1/4 to 3/4" +.0006/+.0010          Over 3/4 to 1-1/2" +.0008/+.0012Reamer bushings have a different ID-tolerance range than drill bushings. To special-order bushings with the reamer ID tolerance shown here, add "-REAMER" to the part number:          SF-20-16-.1250-REAMER (Special)

OD Tolerance

Standard OD Tolerance:          3/16 to 1" 0/-.0002          1-3/8 to 1-3/4" 0/-.0003          2-1/4 to 3-1/2" 0/-.0004

No-Counterbore Option on Long Bushings*

Extremely long bushings with a small ID size (marked with an asterisk * in the tables below) 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:          SF-20-16-.1250-NCB (Special)

Material

Parts Specification

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