D-288Z-31 Compression spring is sold as a box of 12 pieces. The listed price is for the complete 12-piece box, not for a single spring.
Designed for specification-led purchasing, D-288Z-31 makes it easy to compare the spring rate, free length, and coil dimensions in one place.
Technical highlights include material: EN 10270-1, wire diameter: 3 mm, outer diameter: 28 mm, free length: 40 mm, spring rate: 15.089 N/mm. Use the specification table below to verify the dimensions and performance data against your application before placing an order.
| Article number | D-288Z-31 |
|---|---|
| Material | EN 10270-1 |
| Spring ends | Closed and ground |
| Wire diameter [d] | 3 mm |
| Inner coil diameter [Di] | - mm |
| Mean coil diameter [D] | 25 mm |
| Outer coil diameter [De] | 28 mm |
| Maximum mandrel diameter [Dd] | 21.2 mm |
| Minimum housing diameter [Dh] | 29.1 mm |
| Free length [L0] | 40 mm |
| Buckling length [Lk] | mm |
| Max. static force [Fn] | 322.248 N |
| Min. static length [Ln] | 18.64 mm |
| Max. static deflection [sn] | 21.36 mm |
| Max. dynamic force [Fndyn] | 306.159 N |
| Min. dynamic length [Lndyn] | 19.71 mm |
| Max. dynamic stroke [shdyn] | 9.02 mm |
| Spring pitch [S] | 10.571 mm |
| Active coils [n] | 3.5 pc. |
| Total coils [nt] | - pc. |
| Spring rate [R] | 15.089 N/mm |
| Weight per spring | 24.136 g |
Please check all measurements carefully before ordering. Spring performance can vary depending on installation conditions and application requirements.
