Selection Guide
PC Connection
The force Fr is created by tightening the PC screw. This results in line contact seating with high repeatable precision (.0002 on diameter). The geometry of the screw and mating hole in the male pilot creates the resultant force Fa.
Fa = 3.7 x Fr
The face to face clamping forces Fa’ are equal to the axial force Fa.
The torsional cutting forces are primarily transmitted by the friction between the mating faces. Any remaining torque will result in an additional wedge action between the locking screw and the inner member. Due to the very small resulting wedge angle any increased torsional force Ft will be transformed into a very strong axial clamping force Fa2.
The cross pin (not shown) helps in alignment of the PC screw and transmits extreme forces.
| PC | Diameter |
|---|---|
| PC2 | .94 |
| PC3 | 1.22 |
| PC4 | 1.54 |
| PC5 | 1.97 |
| PC6 | 2.52 |
| PC7 | 3.54 |
