GN 256 silicone vibration / shock absorption mounts, also known as shock absorbing mounts, vibration mounts, anti-vibration mounts, vibration bobbins or rubber bumpers, are frequently used as end-stop bumpers, e.g. for conveyors.
The silicone rubber used is age-resistant and has an increased working temperature range. Due to the material purity, use is possible in the food and medical industry.
They absorb most of the accumulated kinetic energy on impact. They act as dampers and prevent damaging shock and rebound. They also act as sound dampers.
These mounts are also used as set-up elements and leveling feet.
RoHS compliant
| d1 | d2 Thread | Length l | d3 | h | s | Spring rate ≈ Hardness 55 | Max. load Hardness 55 | Max. deflection ≈ | |
|---|---|---|---|---|---|---|---|---|---|
| 0.75 | 10 x 24 | 0.39 | 0.75 | 0.47 | 0.63 | 0.08 | 360 lbf/in (63 N/mm) | 56.20 lbf (250 N) | 0.16 |
| 0.98 | 1/4 x 20 | 0.51 | 0.98 | 0.65 | 0.81 | 0.08 | 514 lbf/in (90 N/mm) | 103 lbf (460 N) | 0.20 |
| 1.26 | 5/16 x 18 | 0.63 | 1.26 | 0.83 | 1.02 | 0.08 | 668 lbf/in (117 N/mm) | 171 lbf (760 N) | 0.26 |
| 1.50 | 5/16 x 18 | 0.63 | 1.26 | 0.96 | 1.26 | 0.08 | 645 lbf/in (113 N/mm) | 202 lbf (900 N) | 0.31 |
| 1.97 | 3/8 x 16 | 0.63 | 1.26 | 1.26 | 1.69 | 0.08 | 845 lbf/in (148 N/mm) | 355 lbf (1580 N) | 0.42 |
| d1 | d2 Thread | Length l | d3 | h | s | Spring rate ≈ Hardness 55 | Max. load Hardness 55 | Max. deflection ≈ | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 0.75 | M 5 | 0.24 | 0.39 | 0.79 | 0.47 | 0.63 | 0.08 | 360 lbf/in (63 N/mm) | 56.20 lbf (250 N) | 0.16 |
| 0.98 | M 6 | 0.31 | 0.47 | 0.98 | 0.65 | 0.81 | 0.08 | 514 lbf/in (90 N/mm) | 103 lbf (460 N) | 0.20 |
| 1.26 | M 8 | 0.39 | 0.63 | 1.18 | 0.83 | 1.02 | 0.08 | 668 lbf/in (117 N/mm) | 171 lbf (760 N) | 0.26 |
| 1.50 | M 8 | 0.39 | 0.63 | 1.18 | 0.96 | 1.26 | 0.08 | 645 lbf/in (113 N/mm) | 202 lbf (900 N) | 0.31 |
| 1.97 | M 10 | 0.47 | 0.79 | 1.57 | 1.26 | 1.69 | 0.08 | 845 lbf/in (148 N/mm) | 355 lbf (1580 N) | 0.42 |
| Min | Max | Price |
|---|---|---|
| 1 | 49 | $7.71 |
| 50 | 99 | $7.07 |
| 100 | 249 | $6.43 |
| ≥ 250 | $5.78 |
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