Compression Springs
As you squeeze a compression spring, it pushes back to return to its original length. Spring rate is the amount of force required for every inch of compression or, for metric springs, millimeter of compression. The higher the spring rate, the harder it is to compress the spring.
Zinc-plated springs have mild corrosion resistance.
Springs with closed and ground ends sit flat, so they won’t buckle.
Wire | Pkg. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OD | ID | Dia. | Compressed Lg. @ Max. Load | Max. Load, lbs. | Spring Rate, lbs./in.  | Material | End Type | Pkg. Qty. | 1-49 | 50-249 | 250-Up | |
5.5" Lg. | ||||||||||||
| 0.875" | 0.635" | 0.12" | 3.196" | 83.12 | 36.08 | Zinc-Plated Music-Wire Steel | Closed and Ground | 6 | 00000000 | 000000 | 000000 | 000000 |
Extension Springs with Loop Ends
As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Spring rate is the amount of force required for every inch or millimeter of extension.
Zinc-plated springs have mild corrosion resistance.
Load, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Spring Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
5.5" Lg. | |||||||||
| 0.25" | 0.041" | 7.5" | 2.12 | 8.32 | 3.09 | Zinc-Plated Spring-Tempered Steel | 3 | 00000000 | 00000 |
| 0.344" | 0.048" | 8.5" | 2.79 | 11 | 2.73 | Zinc-Plated Spring-Tempered Steel | 3 | 00000000 | 0000 |
| 0.36" | 0.045" | 10.83" | 0.9 | 10.2 | 1.7 | Music-Wire Steel | 3 | 00000000 | 00000 |
| 0.36" | 0.058" | 8.24" | 1.89 | 21.02 | 7 | Music-Wire Steel | 3 | 0000000 | 00000 |
| 0.438" | 0.063" | 8" | 4.7 | 18 | 5.29 | Zinc-Plated Spring-Tempered Steel | 3 | 00000000 | 0000 |
| 0.547" | 0.08" | 7.5" | 4 | 24 | 10 | Music-Wire Steel | 3 | 00000000 | 00000 |
| 0.688" | 0.08" | 7.67" | 5.36 | 15.72 | 4.78 | Zinc-Plated Spring-Tempered Steel | 6 | 00000000 | 00000 |
| 0.75" | 0.063" | 16.75" | 1.2 | 12.8 | 1.1 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 0.75" | 0.069" | 15.4" | 2 | 19 | 1.8 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 0.75" | 0.075" | 12.83" | 1.9 | 20.7 | 2.7 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 0.75" | 0.095" | 9.46" | 3.71 | 41.21 | 9.5 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 0.75" | 0.115" | 7.89" | 6.27 | 69.69 | 26.5 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 1" | 0.095" | 12.53" | 2.7 | 30 | 4.1 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 1" | 0.105" | 10.99" | 3.8 | 42.25 | 7 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 1" | 0.115" | 9.87" | 4.9 | 54.3 | 11.3 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1" | 0.125" | 9.04" | 6.11 | 67.87 | 17.5 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1" | 0.135" | 8.4" | 7.56 | 83.98 | 26.3 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1" | 0.148" | 7.74" | 9.68 | 107.57 | 43.7 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.125" | 0.105" | 12.23" | 3.4 | 37.8 | 5.1 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.125" | 0.125" | 9.88" | 5.51 | 61.25 | 12.7 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.085" | 16.5" | 2 | 21 | 1.7 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.135" | 9.81" | 6.18 | 68.62 | 14.5 | Music-Wire Steel | 1 | 0000000 | 00000 |
| 1.5" | 0.177" | 8.38" | 10.97 | 121.9 | 38.5 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.207" | 7.84" | 14.59 | 162.17 | 63.2 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 2" | 0.177" | 8.99" | 8.37 | 92.95 | 18.7 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 2" | 0.207" | 7.98" | 12.88 | 143.12 | 41.1 | Music-Wire Steel | 1 | 00000000 | 00000 |
Corrosion-Resistant Extension Springs with Loop Ends
Made of stainless steel, these springs are more corrosion resistant than steel springs. They're also easier to extend than steel springs. As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Spring rate is the amount of force required for every inch or millimeter of extension.
302 stainless steel springs have good corrosion resistance.
316 stainless steel springs have excellent corrosion resistance.
Load, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Spring Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
5.5" Lg. | |||||||||
| 0.36" | 0.045" | 10.83" | 0.75 | 8.5 | 1.416 | 302 Stainless Steel | 3 | 00000000 | 000000 |
| 0.688" | 0.08" | 8.24" | 5.36 | 16.76 | 4.15 | 302 Stainless Steel | 1 | 000000000 | 0000 |
| 0.75" | 0.063" | 11.23" | 1 | 6.25 | 0.916 | 316 Stainless Steel | 1 | 00000000 | 00000 |
| 0.75" | 0.075" | 12.83" | 1.58 | 17.24 | 2.249 | 302 Stainless Steel | 2 | 00000000 | 00000 |
| 0.75" | 0.095" | 7.76" | 3.09 | 20.95 | 7.914 | 316 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.095" | 12.53" | 2.25 | 24.99 | 3.415 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.115" | 9.87" | 4.08 | 45.23 | 9.413 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.125" | 9.04" | 5.09 | 56.54 | 14.578 | 302 Stainless Steel | 1 | 0000000 | 00000 |
| 1" | 0.135" | 8.4" | 6.3 | 69.96 | 21.908 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.095" | 15.52" | 1.94 | 21.54 | 1.916 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.125" | 12.1" | 3.5 | 38.85 | 5.331 | 302 Stainless Steel | 1 | 0000000 | 00000 |
| 1.75" | 0.207" | 7.84" | 12.15 | 135.09 | 52.646 | 302 Stainless Steel | 1 | 00000000 | 00000 |
Extension Springs with Hook Ends
As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Spring rate is the amount of force required for every inch or mm of extension.
Load, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Spring Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
5.5" Lg. | |||||||||
| 0.36" | 0.045" | 10.83" | 0.9 | 10.2 | 1.7 | Music-Wire Steel | 3 | 00000000 | 000000 |
| 0.36" | 0.055" | 8.68" | 1.6 | 17.6 | 5.2 | Music-Wire Steel | 5 | 00000000 | 00000 |
| 0.36" | 0.058" | 8.24" | 1.89 | 21.02 | 7 | Music-Wire Steel | 3 | 00000000 | 00000 |
| 0.75" | 0.063" | 16.75" | 1.2 | 12.8 | 1.1 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 0.75" | 0.075" | 12.83" | 1.9 | 20.7 | 2.7 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 0.75" | 0.095" | 9.46" | 3.71 | 41.21 | 9.5 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 0.75" | 0.115" | 7.89" | 6.27 | 69.69 | 26.5 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 0.85" | 0.085" | 12.36" | 2.4 | 25.9 | 3.6 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 1" | 0.095" | 12.53" | 2.7 | 30 | 4.1 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 1" | 0.105" | 10.99" | 3.8 | 42.25 | 7 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 1" | 0.115" | 9.87" | 4.9 | 54.3 | 11.3 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1" | 0.125" | 9.04" | 6.11 | 67.87 | 17.5 | Music-Wire Steel | 1 | 0000000 | 00000 |
| 1" | 0.135" | 8.4" | 7.56 | 83.98 | 26.3 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1" | 0.148" | 7.74" | 9.68 | 107.57 | 43.7 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.125" | 0.125" | 9.88" | 5.51 | 61.25 | 12.7 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.095" | 15.52" | 2.33 | 25.86 | 2.3 | Music-Wire Steel | 2 | 00000000 | 00000 |
| 1.25" | 0.148" | 8.93" | 7.95 | 88.38 | 23.4 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.148" | 9.94" | 6.7 | 74.49 | 15.3 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 2" | 0.207" | 7.98" | 12.88 | 143.12 | 52.5 | Music-Wire Steel | 1 | 0000000 | 00000 |
Corrosion-Resistant Extension Springs with Hook Ends
Made of stainless steel, these springs are more corrosion resistant than steel springs. They're also easier to extend than steel springs. As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Spring rate is the amount of force required for every inch or millimeter of extension.
302 stainless steel springs have good corrosion resistance.
Load, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Spring Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
5.5" Lg. | |||||||||
| 0.36" | 0.045" | 10.83" | 0.75 | 8.5 | 1.416 | 302 Stainless Steel | 3 | 00000000 | 000000 |
| 0.36" | 0.055" | 8.68" | 1.33 | 14.66 | 4.332 | 302 Stainless Steel | 3 | 0000000 | 00000 |
| 0.5" | 0.054" | 11.7" | 2 | 9.9 | 1.4 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 0.562" | 0.091" | 7.4" | 12 | 41 | 15.626 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 0.75" | 0.063" | 16.75" | 1 | 10.66 | 0.916 | 302 Stainless Steel | 1 | 0000000 | 0000 |
| 0.75" | 0.075" | 10.9" | 2 | 14.8 | 2.372 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 0.75" | 0.095" | 9.46" | 3.09 | 34.33 | 7.914 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 0.75" | 0.115" | 7.89" | 5.22 | 58.05 | 22.075 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 0.85" | 0.085" | 12.36" | 2 | 21.57 | 2.999 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 0.875" | 0.085" | 10.49" | 2.4 | 18 | 3.128 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.095" | 12.53" | 2.25 | 24.99 | 3.415 | 302 Stainless Steel | 1 | 000000 | 00000 |
| 1" | 0.105" | 10.99" | 3.17 | 35.19 | 5.831 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.115" | 9.87" | 4.08 | 45.23 | 9.413 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.125" | 9.04" | 5.09 | 56.54 | 14.578 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.148" | 7.74" | 8.06 | 89.61 | 36.402 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.125" | 0.085" | 16.65" | 1.57 | 17.47 | 1.416 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.125" | 0.125" | 9.88" | 4.59 | 51.02 | 10.579 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.148" | 10.58" | 4.82 | 53.59 | 9.58 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.207" | 7.84" | 12.15 | 135.09 | 52.646 | 302 Stainless Steel | 1 | 00000000 | 00000 |
Extension Springs with Special Ends
For specialty applications and connections, these springs have unique end types.
As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Spring rate is the amount of force required for every inch of extension.
Load, lbs. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | Lg. | OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Spring Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
Elongated Hook and Loop | |||||||||||
| E | 5 1/2" | 0.375" | 0.062" | 6.31" | 6.06 | 17.94 | 14.62 | Galvanized Spring-Tempered Steel | 3 | 00000000 | 000000 |
Color-Coded Die Springs
These springs follow the Raymond die spring color code. Made of chrome-silicon steel, they have high tensile strength for reliable, long-lasting operation in repetitive applications, such as punching and stamping. All have closed and ground ends, which provide a flat mounting surface for even movement and distribution of loads.
Deflection is the distance the spring compresses, expressed as a percentage of its length.
As you squeeze a die spring, it gets harder to push. Spring rate is the amount of force required for every inch of compression. The higher the spring rate, the harder it is to compress the spring.
Wire | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Thick. | Wd. | Compressed Lg. @ Max. Load | Deflection @ Max. Load | Max. Load, lbs. | Spring Rate, lbs./in. | Material | End Type | Each | |
Blue (Medium Load Rating) | ||||||||||
For 1/2" Hole Dia. (For 9/32" Shaft Dia.) | ||||||||||
| 5.5" | 0.052" | 0.093" | 3.3" | 40% | 44 | 21 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 00000 |
For 1 1/2" Hole Dia. (For 3/4" Shaft Dia.) | ||||||||||
| 5.5" | 0.135" | 0.345" | 3.3" | 40% | 407 | 185 | Chrome-Silicon Steel | Closed and Ground | 0000000 | 00000 |