Description
Tapered Index Plungers
Tapered Index PlungersIndex plungers are precision, heavy-duty assemblies with a retractable spring-loaded plunger and a matching locating bushing. Tapered Index Plungers feature a 15 taper on the plunger tip with a mating taper in the bushing. The taper makes alignment easier and also eliminates any binding during retraction Rotary-cam action completely retracts the plunger when the handle is rotated 180. Cam surfaces are hardened steel. Made in USA.
The flange-mount configuration provides orientation by fastening the flange with two socket-head cap screws. Flange mounting is designed for installations where a cross hole for a whistle-notch set screw is not practical.
Application Information
Internal View
Installation
Index plungers are manufactured with precision working tolerances and are designed for very light interference-fit installations to avoid binding of the mechanism.
Material
| Item | Material | Heat Treat | Finish | DFARS | RoHS |
| Plunger,Body and Cam | 1144 Steel | Heat Treated Rc 50-55 | – | Yes | Yes |
| Center Shaft | 1144 Steel | – | – | Yes | Yes |
| Spring | Music Wire | – | – | Yes | Yes |
| Ball Knob | Black phenolic plastic with molded-in brass insert | – | – | Yes | Yes |
| Bushing | 1144 Steel | Heat Treated | – | Yes | Yes |
Parts Specification
| Plunger Diameter (mm) | A Diameter Nominal (mm) | A Diameter Actual (mm) | C (mm) | K (mm) | M Diameter (mm) |
| 12 mm | 20 mm | 20.046 / 20.038 (Ground) mm | 12 mm | 3 mm | 34 mm |
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