Locking indexing plungers GN 514 feature a cardioid curve mechanism based on the principle of a retractable pen. They offer very ergonomic operation that requires only repeated pressing of the knob. Thanks to their functional principle, they are well suited for use in tight conditions and are also easy to protect against improper operation, if necessary.
First the plunger pin is brought into the protruding position by pressing the knob. In this position, the cardioid curve mechanism automatically engages to lock the part. Pressing the knob again unlocks the mechanism since the plunger pin retracts automatically by spring force once the button is released. The plunger pin must not be subjected to any axial forces and must move easily.
The stainless steel design is suitable for applications in highly corrosive environments thanks to the A4 materials used.
Plunger pin
Stainless steel AISI 316
Case-hardened
Compression spring
Stainless steel AISI 316Ti
RoHS compliant
| A | Without lock nut |
| AK | With lock nut |
| AN | With stainless steel knob, without lock nut |
| AKN | With stainless steel knob, with lock nut |
| d1 Pin -0.001 / -0.002 Bore +0.001 | d2 Thread | d3 | e | l1 | l2 | l3 | l4 | l5 | A/F | w1 | w2 | Spring load ≈ Initial | End |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.24 | M 12 x 1.5 | 0.75 | 0.59 | 0.24 | 1.50 | 0.77 | 1.75 | 0.35 | 0.51 | 0.12 | 0.35 | 1.91 lbf (8.5 N) | 5.62 lbf (25 N) |
| 0.31 | M 16 x 1.5 | 0.98 | 0.75 | 0.31 | 1.81 | 1.00 | 2.15 | 0.43 | 0.67 | 0.12 | 0.43 | 4.05 lbf (18 N) | 9.89 lbf (44 N) |
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| Min | Max | Price |
|---|---|---|
| 1 | 99 | $51.74 |
| 100 | 249 | $47.43 |
| 250 | 499 | $43.12 |
| ≥ 500 | $38.80 |
Our service team is available from Monday to Friday between 7:30 AM and 5:00 PM Central Time: 800-877-8351
