Head Press-Fit Bushings (H)

H Bushings are similar to P bushings, but with a head to resist heavy axial loads. Type H bushings are permanently pressed into the jig plate. H bushings are generally used for single-operation drilling or reaming, when you do not expect to replace bushings during the tooling's lifetime. The head of type H bushings can be left exposed, or recessed by counterboring the installation hole.

Application Information

H bushings are permanently pressed into the jig plate. The head can be left exposed, or recessed by counterboring the installation hole.

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

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

3/4 to 1" +0.0018/+0.0015

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

Parts Specification