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Spring Rate
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U.S.–Mexico–Canada Agreement (USMCA) Qualifying
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Long-Life Rubber Compression Springs
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When longevity matters most, these springs deliver. Made from a polyester/rubber blend, they stay springy longer than metal and plastic springs—with documented cases up to one million cycles.
Flanges on the ends create a flat mounting surface.
Hardness—As the durometer gets higher, the springs absorb more energy but compress less.
Flange | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | OD | ID | OD | Thk. | Compressed Lg. @ Max. Load | Max. Load, lb. | Spring Rate, lbf/in | Hardness | Temp. Range, ° F | Each | ||
| 0.625" | 0.74" | 0.5" | 0.95" | 0.1" | 0.39" | 40 | 115 | Durometer 55D | -40 to 120 | 1840N1 | 000000 | |
| 1.188" | 0.74" | 0.5" | 0.95" | 0.1" | 0.67" | 40 | 70 | Durometer 55D | -40 to 120 | 1840N2 | 00000 | |
| 1.25" | 1.5" | 1" | 1.9" | 0.2" | 0.76" | 200 | 275 | Durometer 55D | -40 to 120 | 1840N5 | 00000 | |
| 1.75" | 0.74" | 0.5" | 0.95" | 0.1" | 0.96" | 40 | 43 | Durometer 55D | -40 to 120 | 1840N3 | 00000 | |
| 1.875" | 2.25" | 1.5" | 2.86" | 0.3" | 1.16" | 500 | 485 | Durometer 55D | -40 to 120 | 1840N9 | 00000 | |
| 2.25" | 0.74" | 0.5" | 0.95" | 0.1" | 1.3" | 40 | 33 | Durometer 55D | -40 to 120 | 1840N4 | 00000 | |
| 2.375" | 1.5" | 1" | 1.9" | 0.2" | 1.3" | 200 | 145 | Durometer 55D | -40 to 120 | 1840N6 | 00000 | |
| 2.5" | 3.01" | 2" | 3.82" | 0.4" | 1.53" | 900 | 575 | Durometer 55D | -40 to 120 | 1840N13 | 00000 | |
| 3.125" | 3.76" | 2.5" | 4.76" | 0.5" | 1.94" | 1,300 | 895 | Durometer 55D | -40 to 120 | 1840N15 | 00000 | |
| 3.438" | 1.5" | 1" | 1.9" | 0.2" | 1.85" | 200 | 105 | Durometer 55D | -40 to 120 | 1840N7 | 00000 | |
| 3.5" | 2.25" | 1.5" | 2.86" | 0.3" | 1.97" | 500 | 245 | Durometer 55D | -40 to 120 | 1840N11 | 00000 | |
| 4.5" | 1.5" | 1" | 1.9" | 0.2" | 2.4" | 200 | 92 | Durometer 55D | -40 to 120 | 1840N8 | 00000 | |
| 4.625" | 3.01" | 2" | 3.82" | 0.4" | 2.65" | 1,100 | 335 | Durometer 55D | -40 to 120 | 1840N14 | 00000 | |
| 5" | 2.25" | 1.5" | 2.86" | 0.3" | 2.72" | 500 | 165 | Durometer 55D | -40 to 120 | 1840N12 | 00000 | |
| 5.75" | 3.76" | 2.5" | 4.76" | 0.5" | 3.44" | 1,300 | 410 | Durometer 55D | -40 to 120 | 1840N16 | 00000 | |
