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Constant-Force Strip Springs
 |
No matter how far you extend them, these springs pull back with the same amount of force. Compact and tightly coiled, these springs extend to multiple times their length to pull objects in a linear direction. All are stainless steel for corrosion resistance. Please allow for 1 ½ coils on the shaft at full extension to hold the spring in place.
Extended Lg. | Load, lb. | Wt. Load Tolerance, lb. | Thk. | Wd. | ID | ID Tolerance | OD | OD Tolerance | Mounting Hole Dia. | No. of Mounting Holes | Material | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3,000 Cycle Useful Life | |||||||||||||||
| 12" | 0.37 | -0.04 to 0.04 | 0.003" | 0.187" | 0.21" | -0.03" to 0.03" | 0.3" | -0.03" to 0.03" | 0.096" | 1 | 301 Stainless Steel | 9293K111 | 00000 | ||
| 12" | 1.23 | -0.12 to 0.12 | 0.005" | 0.375" | 0.38" | — | 0.687" | — | 0.131" | 1 | 301 Stainless Steel | 9293K254 | 0000 | ||
| 15" | 0.49 | -0.05 to 0.05 | 0.004" | 0.187" | 0.29" | -0.03" to 0.03" | 0.4" | -0.04" to 0.04" | 0.096" | 1 | 301 Stainless Steel | 9293K112 | 0000 | ||
| 15" | 0.66 | -0.07 to 0.07 | 0.004" | 0.25" | 0.28" | -0.03" to 0.03" | 0.4" | -0.04" to 0.04" | 0.13" | 1 | 301 Stainless Steel | 9293K42 | 0000 | ||
| 15" | 0.83 | -0.09 to 0.09 | 0.004" | 0.312" | 0.28" | -0.03" to 0.03" | 0.4" | -0.04" to 0.04" | 0.13" | 1 | 301 Stainless Steel | 9293K113 | 0000 | ||
| 17" | 1.03 | -0.11 to 0.11 | 0.005" | 0.312" | 0.37" | -0.04" to 0.04" | 0.5" | -0.05" to 0.05" | 0.13" | 1 | 301 Stainless Steel | 9293K44 | 0000 | ||
| 18" | 0.75 | -0.08 to 0.08 | 0.005" | 0.31" | 0.42" | -0.05" to 0.05" | 0.56" | -0.06" to 0.06" | 0.131" | 1 | 301 Stainless Steel | 9293K132 | 00000 | ||
| 22" | 1.12 | -0.12 to 0.12 | 0.006" | 0.37" | 0.51" | -0.06" to 0.06" | 0.62" | -0.07" to 0.07" | 0.131" | 1 | 301 Stainless Steel | 9293K46 | 00000 | ||
| 22" | 2.3 | -0.23 to 0.23 | 0.007" | 0.5" | 0.5" | — | 0.75" | — | 0.191" | 1 | 301 Stainless Steel | 9293K263 | 0000 | ||
| 22" | 2.87 | -0.28 to 0.28 | 0.007" | 0.625" | 0.5" | — | 0.75" | — | 0.191" | 1 | 301 Stainless Steel | 9293K295 | 0000 | ||
| 24" | 1.48 | -0.15 to 0.15 | 0.006" | 0.375" | 0.45" | -0.05" to 0.05" | 0.62" | -0.07" to 0.07" | 0.196" | 1 | 301 Stainless Steel | 9293K114 | 0000 | ||
| 24" | 4 | -0.4 to 0.40 | 0.009" | 0.75" | 0.62" | -0.07" to 0.07" | 0.82" | -0.09" to 0.09" | 0.196" | 1 | 301 Stainless Steel | 9293K117 | 00000 | ||
| 24" | 4.93 | -0.49 to 0.49 | 0.012" | 0.625" | 0.86" | — | 1.125" | — | 0.191" | 1 | 301 Stainless Steel | 9293K337 | 0000 | ||
| 25" | 1.97 | -0.2 to 0.20 | 0.006" | 0.5" | 0.45" | -0.05" to 0.05" | 0.65" | -0.07" to 0.07" | 0.196" | 1 | 301 Stainless Steel | 9293K115 | 0000 | ||
| 26" | 1.62 | -0.17 to 0.17 | 0.007" | 0.5" | 0.59" | -0.06" to 0.06" | 0.75" | -0.08" to 0.08" | 0.131" | 1 | 301 Stainless Steel | 9293K48 | 00000 | ||
| 28" | 6.88 | -0.69 to 0.69 | 0.014" | 0.75" | 1" | — | 1.5" | — | 0.191" | 1 | 301 Stainless Steel | 9293K349 | 0000 | ||
| 28" | 9.19 | -0.92 to 0.92 | 0.014" | 1" | 1.1" | — | 1.5" | — | 0.191" | 1 | 301 Stainless Steel | 9293K443 | 0000 | ||
| 30" | 2.63 | -0.27 to 0.27 | 0.008" | 0.5" | 0.59" | -0.06" to 0.06" | 0.82" | -0.09" to 0.09" | 0.196" | 1 | 301 Stainless Steel | 9293K52 | 0000 | ||
| 30" | 3.29 | -0.33 to 0.33 | 0.008" | 0.625" | 0.61" | -0.07" to 0.07" | 0.83" | -0.09" to 0.09" | 0.196" | 1 | 301 Stainless Steel | 9293K116 | 0000 | ||
| 32" | 14.76 | -1.5 to 1.50 | 0.018" | 1.25" | 1.28" | — | 1.75" | — | 0.191" | 1 | 301 Stainless Steel | 9293K467 | 0000 | ||
| 32" | 17.71 | -1.7 to 1.70 | 0.018" | 1.5" | 1.38" | — | 1.75" | — | 0.256" | 2 | 301 Stainless Steel | 9293K562 | 0000 | ||
| 33" | 4.12 | -0.42 to 0.42 | 0.01" | 0.625" | 0.73" | -0.08" to 0.08" | 0.99" | -0.1" to 0.10" | 0.196" | 1 | 301 Stainless Steel | 9293K54 | 0000 | ||
| 33" | 4.95 | -0.5 to 0.50 | 0.01" | 0.75" | 0.71" | -0.08" to 0.08" | 0.97" | -0.1" to 0.10" | 0.196" | 1 | 301 Stainless Steel | 9293K118 | 00000 | ||
| 34" | 3.5 | -0.35 to 0.35 | 0.01" | 0.68" | 0.85" | -0.09" to 0.09" | 1.12" | -0.12" to 0.12" | 0.187" | 1 | 301 Stainless Steel | 9293K133 | 00000 | ||
| 36" | 28.71 | -2.87 to 2.87 | 0.025" | 1.75" | 1.88" | — | 2" | — | 0.256" | 2 | 301 Stainless Steel | 9293K69 | 00000 | ||
| 36" | 32.81 | -3.28 to 3.28 | 0.025" | 2" | 1.78" | — | 2.125" | — | 0.256" | 2 | 301 Stainless Steel | 9293K698 | 00000 | ||
| 38" | 5 | -0.5 to 0.50 | 0.012" | 0.81" | 1.02" | -0.11" to 0.11" | 1.4" | -0.14" to 0.14" | 0.187" | 1 | 301 Stainless Steel | 9293K134 | 00000 | ||
| 39" | 5.94 | -0.6 to 0.60 | 0.012" | 0.75" | 0.88" | -0.09" to 0.09" | 1.19" | -0.12" to 0.12" | 0.196" | 1 | 301 Stainless Steel | 9293K56 | 00000 | ||
| 39" | 7.92 | -0.8 to 0.80 | 0.012" | 1" | 0.88" | -0.09" to 0.09" | 1.2" | -0.12" to 0.12" | 0.196" | 1 | 301 Stainless Steel | 9293K119 | 00000 | ||
| 40" | 10.6 | -1.06 to 1.06 | 0.016" | 1" | 1.2" | -0.12" to 0.12" | 1.52" | -0.16" to 0.16" | 0.196" | 1 | 301 Stainless Steel | 9293K12 | 00000 | ||
| 43" | 7 | -0.7 to 0.70 | 0.014" | 1" | 1.19" | -0.12" to 0.12" | 1.5" | -0.15" to 0.15" | 0.187" | 1 | 301 Stainless Steel | 9293K58 | 00000 | ||
| 50" | 16.5 | -1.65 to 1.65 | 0.02" | 1.25" | 1.47" | -0.15" to 0.15" | 1.89" | -0.19" to 0.19" | 0.196" | 1 | 301 Stainless Steel | 9293K121 | 00000 | ||
| 52" | 24.8 | -2.48 to 2.48 | 0.025" | 1.5" | 1.77" | -0.18" to 0.18" | 2.23" | -0.23" to 0.23" | 0.265" | 2 | 301 Stainless Steel | 9293K13 | 00000 | ||
| 52" | 33 | -0.33 to 0.33 | 0.025" | 2" | 1.78" | -0.18" to 0.18" | 2.22" | -0.22" to 0.22" | 0.265" | 2 | 301 Stainless Steel | 9293K131 | 00000 | ||
| 60" | 40.9 | -4.09 to 4.09 | 0.031" | 2" | 2.5" | -0.25" to 0.25" | 3.03" | -0.31" to 0.31" | 0.265" | 2 | 301 Stainless Steel | 9293K14 | 00000 | ||
25,000 Cycle Useful Life | |||||||||||||||
| 18" | 0.23 | -0.03 to 0.03 | 0.004" | 0.25" | 0.53" | -0.06" to 0.06" | 0.62" | -0.07" to 0.07" | 0.13" | 1 | 301 Stainless Steel | 9293K122 | 0000 | ||
| 18" | 0.36 | -0.04 to 0.04 | 0.005" | 0.312" | 0.69" | -0.07" to 0.07" | 0.78" | -0.08" to 0.08" | 0.13" | 1 | 301 Stainless Steel | 9293K123 | 0000 | ||
| 25" | 0.43 | -0.05 to 0.05 | 0.005" | 0.375" | 0.65" | -0.07" to 0.07" | 0.78" | -0.08" to 0.08" | 0.13" | 1 | 301 Stainless Steel | 9293K124 | 0000 | ||
| 25" | 0.52 | -0.06 to 0.06 | 0.006" | 0.375" | 0.7" | -0.07" to 0.07" | 0.9" | -0.09" to 0.09" | 0.196" | 1 | 301 Stainless Steel | 9293K125 | 0000 | ||
| 25" | 0.7 | -0.07 to 0.07 | 0.006" | 0.5" | 0.8" | -0.08" to 0.08" | 0.92" | -0.1" to 0.10" | 0.196" | 1 | 301 Stainless Steel | 9293K17 | 0000 | ||
| 33" | 0.93 | -0.1 to 0.10 | 0.008" | 0.5" | 1.07" | -0.11" to 0.11" | 1.23" | -0.13" to 0.13" | 0.196" | 1 | 301 Stainless Steel | 9293K18 | 0000 | ||
| 35" | 1.46 | -0.15 to 0.15 | 0.01" | 0.625" | 1.36" | -0.14" to 0.14" | 1.53" | -0.16" to 0.16" | 0.196" | 1 | 301 Stainless Steel | 9293K19 | 0000 | ||
| 45" | 2.09 | -0.21 to 0.21 | 0.012" | 0.75" | 1.6" | -0.16" to 0.16" | 1.82" | -0.19" to 0.19" | 0.196" | 1 | 301 Stainless Steel | 9293K21 | 00000 | ||
| 45" | 2.8 | -0.28 to 0.28 | 0.012" | 1" | 1.6" | -0.16" to 0.16" | 1.84" | -0.19" to 0.19" | 0.196" | 1 | 301 Stainless Steel | 9293K126 | 00000 | ||
| 46" | 4.1 | -0.41 to 0.41 | 0.016" | 1" | 1.96" | -0.2" to 0.20" | 2.21" | -0.23" to 0.23" | 0.196" | 1 | 301 Stainless Steel | 9293K22 | 00000 | ||
| 48" | 3.5 | -0.35 to 0.35 | 0.015" | 1" | 1.96" | -0.2" to 0.20" | 2.2" | -0.22" to 0.22" | 0.196" | 1 | 301 Stainless Steel | 9293K127 | 00000 | ||
| 48" | 3.86 | -0.39 to 0.39 | 0.016" | 1.25" | 2.28" | — | 2.625" | — | 0.191" | 1 | 301 Stainless Steel | 9293K763 | 00000 | ||
| 48" | 4.37 | -0.44 to 0.44 | 0.015" | 1.25" | 2.03" | -0.21" to 0.21" | 2.29" | -0.23" to 0.23" | 0.196" | 1 | 301 Stainless Steel | 9293K128 | 00000 | ||
| 48" | 5.21 | -0.52 to 0.52 | 0.018" | 1.5" | 2.65" | — | 2.875" | — | 0.256" | 2 | 301 Stainless Steel | 9293K768 | 00000 | ||
| 55" | 5.83 | -0.59 to 0.59 | 0.02" | 1.25" | 2.53" | -0.26" to 0.26" | 2.82" | -0.29" to 0.29" | 0.196" | 1 | 301 Stainless Steel | 9293K23 | 00000 | ||
| 56" | 7.24 | -0.72 to 0.72 | 0.025" | 1.5" | 3.54" | — | 3.875" | — | 0.256" | 2 | 301 Stainless Steel | 9293K905 | 00000 | ||
| 60" | 8.74 | -0.88 to 0.88 | 0.025" | 1.5" | 3.35" | -0.34" to 0.34" | 3.7" | -0.37" to 0.37" | 0.265" | 2 | 301 Stainless Steel | 9293K24 | 00000 | ||
| 60" | 11.7 | -1.17 to 1.17 | 0.025" | 2" | 3.37" | -0.34" to 0.34" | 3.68" | -0.37" to 0.37" | 0.265" | 2 | 301 Stainless Steel | 9293K129 | 00000 | ||
| 70" | 14.4 | -1.44 to 1.44 | 0.031" | 2" | 4.35" | -0.44" to 0.44" | 4.74" | -0.48" to 0.48" | 0.265" | 2 | 301 Stainless Steel | 9293K25 | 00000 | ||
50,000 Cycle Useful Life | |||||||||||||||
| 30" | 0.44 | -0.07 to 0.07 | 0.006" | 0.5" | 1" | -0.1" to 0.10" | 1.22" | -0.13" to 0.13" | 0.196" | 1 | 301 Stainless Steel | 9293K28 | 0000 | ||
| 36" | 0.58 | -0.09 to 0.09 | 0.008" | 0.5" | 1.49" | -0.15" to 0.15" | 1.61" | -0.17" to 0.17" | 0.196" | 1 | 301 Stainless Steel | 9293K29 | 0000 | ||
| 50" | 1.31 | -0.2 to 0.20 | 0.012" | 0.75" | 2.24" | -0.23" to 0.23" | 2.4" | -0.24" to 0.24" | 0.196" | 1 | 301 Stainless Steel | 9293K32 | 00000 | ||
Constant-Force Retractors
 |  |
Right Cable Exit | Left Cable Exit |
Cable | Spring | Housing | Storage Drums | Mounting Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tension, lb. | Travel, ft. | Dia. | Material | Torque, in·lbf | Material | Ht. | Wd. | Dp. | Material | No. of | Material | Mounting Fasteners Included | Dia. | No. of | Each | |||
Right Cable Exit | ||||||||||||||||||
| 0.375 | 3 | 1/16" | Nylon | 0.10 | Stainless Steel | 1 1/2" | 1" | 1/2" | Stainless Steel | 1 | Nylon | — | — | — | 61115A1 | 0000000 | ||
| 1 | 6 | 1/16" | Stainless Steel | 0.78 | Stainless Steel | 3 3/4" | 2 1/2" | 1 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 4 | 61115A2 | 000000 | ||
| 2 | 6 | 1/16" | Stainless Steel | 1.56 | Stainless Steel | 3 3/4" | 2 1/2" | 1 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 4 | 61115A3 | 000000 | ||
| 3 | 6 | 1/16" | Stainless Steel | 2.33 | Stainless Steel | 3 3/4" | 2 1/2" | 1 1/4" | Zinc-Plated Steel | 2 | Acetal | No | 11/64" | 4 | 61115A4 | 000000 | ||
| 3 | 22 | 3/64" | Steel | 3.63 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A111 | 000000 | ||
| 4 | 6 | 1/16" | Stainless Steel | 3.12 | Stainless Steel | 3 3/4" | 2 1/2" | 1 1/4" | Zinc-Plated Steel | 2 | Acetal | No | 11/64" | 4 | 61115A5 | 000000 | ||
| 5 | 6 | 1/16" | Stainless Steel | 3.90 | Stainless Steel | 3 3/4" | 2 1/2" | 1 1/4" | Zinc-Plated Steel | 2 | Acetal | No | 11/64" | 4 | 61115A6 | 000000 | ||
| 5 | 19 | 3/64" | Steel | 5.62 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A113 | 000000 | ||
| 7.5 | 3 | 3/64" | Steel | 6.65 | Stainless Steel | 5 1/4" | 2 3/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A115 | 000000 | ||
| 7.5 | 17 | 3/64" | Steel | 8.06 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A117 | 000000 | ||
| 10 | 3 | 3/64" | Steel | 7.95 | Stainless Steel | 5 1/4" | 2 3/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A119 | 000000 | ||
| 10 | 15 | 3/64" | Steel | 10.60 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A122 | 000000 | ||
| 13.5 | 13 | 3/64" | Steel | 13.90 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A124 | 000000 | ||
| 15 | 2 | 3/64" | Steel | 11.90 | Stainless Steel | 5 1/4" | 2 3/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A126 | 000000 | ||
| 15 | 13 | 3/64" | Steel | 15.50 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A128 | 000000 | ||
Left Cable Exit | ||||||||||||||||||
| 3 | 22 | 3/64" | Steel | 3.63 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A112 | 000000 | ||
| 5 | 19 | 3/64" | Steel | 5.62 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A114 | 000000 | ||
| 7.5 | 17 | 3/64" | Steel | 8.06 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A118 | 000000 | ||
| 10 | 3 | 3/64" | Steel | 7.95 | Stainless Steel | 5 1/4" | 2 3/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A121 | 000000 | ||
| 10 | 15 | 3/64" | Steel | 10.60 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A123 | 000000 | ||
| 13.5 | 13 | 3/64" | Steel | 13.90 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A125 | 000000 | ||
| 15 | 2 | 3/64" | Steel | 11.90 | Stainless Steel | 5 1/4" | 2 3/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A127 | 000000 | ||
| 15 | 13 | 3/64" | Steel | 15.50 | Stainless Steel | 6 1/4" | 3 1/4" | 2 1/4" | Zinc-Plated Steel | 1 | Acetal | No | 11/64" | 6 | 61115A129 | 000000 | ||
Clip-On Constant-Force Strip Springs
 |
Clip the end onto a flat surface to install—no fasteners needed. Once installed, these springs pull back with the same amount of force no matter how far you extend them. Compact and tightly coiled, they extend to multiple times their length to pull objects in a linear direction. All are stainless steel for corrosion resistance. When using, please allow for 1 ½ extra coils on the shaft at full extension to hold the spring in place.
Extended Lg. | Load, lb. | Wt. Load Tolerance, lb. | Thk. | Wd. | ID | ID Tolerance | OD | OD Tolerance | For Max. Mounting Surface Thk. | Material | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
5,000 Cycle Useful Life | ||||||||||||||
| 24" | 1.5 | -0.15 to 0.15 | 0.006" | 0.5" | 0.53" | -0.05" to 0.05" | 0.65" | -0.031" to 0.03" | 0.138" | 301 Stainless Steel | 1845N7 | 00000 | ||
| 24" | 1.75 | -0.17 to 0.17 | 0.007" | 0.5" | 0.63" | -0.05" to 0.05" | 0.8" | -0.031" to 0.03" | 0.136" | 301 Stainless Steel | 1845N8 | 0000 | ||
13,000 Cycle Useful Life | ||||||||||||||
| 24" | 0.2 | -0.02 to 0.02 | 0.003" | 0.25" | 0.35" | -0.02" to 0.02" | 0.5" | -0.031" to 0.03" | 0.119" | 301 Stainless Steel | 1845N1 | 0000 | ||
| 24" | 0.4 | -0.04 to 0.04 | 0.004" | 0.25" | 0.4" | -0.04" to 0.04" | 0.562" | -0.031" to 0.03" | 0.117" | 301 Stainless Steel | 1845N2 | 0000 | ||
| 24" | 0.6 | -0.06 to 0.06 | 0.005" | 0.25" | 0.45" | -0.05" to 0.05" | 0.6" | -0.031" to 0.03" | 0.115" | 301 Stainless Steel | 1845N3 | 0000 | ||
| 24" | 0.8 | -0.08 to 0.08 | 0.005" | 0.312" | 0.5" | -0.05" to 0.05" | 0.625" | -0.031" to 0.03" | 0.115" | 301 Stainless Steel | 1845N4 | 0000 | ||
| 24" | 1 | -0.1 to 0.10 | 0.006" | 0.312" | 0.51" | -0.05" to 0.05" | 0.65" | -0.031" to 0.03" | 0.138" | 301 Stainless Steel | 1845N5 | 0000 | ||
| 24" | 1.25 | -0.12 to 0.12 | 0.006" | 0.375" | 0.55" | -0.05" to 0.05" | 0.65" | -0.031" to 0.03" | 0.138" | 301 Stainless Steel | 1845N6 | 0000 | ||
