Local Phone: (918) 583-0171   Toll Free Phone: 1-800-331-3263

Precision Extension

Ultra Precision Extension Springs are made to strict tolerances from high-grade materials. Tight quality control is maintained throughout the manufacturing process.

Ends are full twist loops. Loop OD is the same as body OD.

Ultra-Precision Extension Springs have an excellent fatigue life and are ideal for dynamic or heavy cycle applications.

Other uses include maintenance, prototyping, and equipment repair.

All parts are stress-relieved.

SKUOD (inches)WD (inches)Free (I.H.) Length (inches)Rate (lbs/in)Deflection (inches)Load at Defl. (lbs)Ext Len (inches)Load at Defl. (N)
37000G0.0630.0070.2510.290.320.541.42
37001G0.0630.0070.3750.530.550.320.9251.42
37002G0.0630.0070.50.360.810.321.311.42
37003G0.0630.0080.2520.210.450.462
37004G0.0630.0080.50.740.250.450.7452
37005G0.0630.0080.750.460.890.451.642
37006G0.0630.0090.253.70.150.620.42.76
37007G0.0630.0090.4381.70.330.620.7682.76
37008G0.0630.0090.750.860.650.621.42.76
37009G0.0940.010.3751.20.460.60.8352.67
37010G0.0940.010.50.760.720.61.222.67
37011G0.0940.010.750.441.250.622.67
37012G0.0940.0120.3753.20.2810.6554.45
37013G0.0940.0120.6251.50.611.2254.45
37014G0.0940.01210.821.112.14.45
37015G0.0940.0140.3757.10.191.50.5656.67
37016G0.0940.0140.6253.40.391.51.0156.67
37017G0.0940.01411.90.71.51.76.67
37018G0.1250.01611.50.931.61.937.12
37019G0.1250.0161.251.21.171.62.427.12
37020G0.1250.0161.50.91.561.63.067.12
37021G0.1250.01812.90.662.21.669.79
37022G0.1250.0181.37520.952.22.3259.79
37023G0.1250.01821.31.462.23.469.79
37024G0.1250.0215.10.492.91.4912.9
37025G0.1250.021.3753.50.712.92.08512.9
37026G0.1250.0222.31.092.93.0912.9
37027G0.1880.02212.50.882.51.8811.12
37028G0.1880.0221.3751.61.382.52.75511.12
37029G0.1880.022212.22.54.211.12
37030G0.1880.02616.10.624.31.6219.13
37031G0.1880.0261.37540.954.32.32519.13
37032G0.1880.02622.51.524.33.5219.13
37033G0.1880.031115.80.3971.3931.14
37034G0.1880.0311.59.20.6772.1731.14
37035G0.1880.0312.55.11.2173.7131.14
37036G0.250.02612.80.963.11.9613.79
37037G0.250.0261.3751.71.593.12.96513.79
37038G0.250.026212.73.14.713.79
37039G0.250.03116.90.655.21.6523.13
37040G0.250.0311.53.81.185.22.6823.13
37041G0.250.0312.522.255.24.7523.13
37042G0.250.037117.70.428.51.4237.81
37043G0.250.0371.7580.948.52.6937.81
37044G0.250.03734.11.838.54.8337.81
37045G0.3750.03113.113.4215.12
37046G0.3750.0311.251.81.723.42.9715.12
37047G0.3750.0311.51.32.383.43.8815.12
37048G0.3750.03717.70.665.81.6625.8
37049G0.3750.0371.53.21.595.83.0925.8
37050G0.3750.0372.51.43.645.86.1425.8
37051G0.3750.041112.70.547.81.5434.7
37052G0.3750.0411.754.21.647.83.3934.7
37053G0.3750.0412.52.52.767.85.2634.7
37054G0.3750.045120.20.44101.4444.48
37055G0.3750.0451.757.51.17102.9244.48
37056G0.3750.04533.22.75105.7544.48
37057G0.3750.0551.2534.80.4517.51.777.84
37058G0.3750.0552.2513.91.1217.53.3777.84
37059G0.3750.0554.55.92.6317.57.1377.84
37060G0.50.0371.2531.34.32.5519.13
37061G0.50.0371.51.72.294.33.7919.13
37062G0.50.03720.774.334.36.3319.13
37063G0.50.0411.253.71.085.82.3325.8
37064G0.50.0411.751.62.525.84.2725.8
37065G0.50.0412.251.14.085.86.3325.8
37066G0.50.0451.3755.71.197.52.56533.36
37067G0.50.04522.12.627.54.6233.36
37068G0.50.0452.50.83.787.56.2833.36
37069G0.50.0551.37515.60.7613.22.13558.72
37070G0.50.0552.256.11.9513.24.258.72
37071G0.50.0554.52.35.1713.29.6758.72
37072G0.50.0631.37531.40.54191.91584.52
37073G0.50.0632.510.71.59194.0984.52
37074G0.50.06354.33.95198.9584.52
37075G0.6250.05524.52.1110.54.1146.71
37076G0.6250.0552.752.53.810.56.5546.71
37077G0.6250.05541.46.7910.510.7946.71
37078G0.6250.06328.91.52153.5266.72
37079G0.6250.06334.33.14156.1466.72
37080G0.6250.0634.52.45.631510.1366.72
37081G0.6250.069214.11.21193.2184.52
37082G0.6250.06937.12.39195.3984.52
37083G0.6250.0694.544.25198.7584.52
37084G0.750.05523.42.358.84.3539.14
37085G0.750.0552.5248.86.539.14
37086G0.750.0553.5188.811.539.14
37087G0.750.06326.61.7612.83.7656.94
37088G0.750.06332.74.312.87.356.94
37089G0.750.06351.29.6712.814.6756.94
37090G0.750.075216.21.1520.73.1592.08
37091G0.750.07536.72.7920.75.7992.08
37092G0.750.07553.16.0320.711.0392.08
37000GS0.0630.0070.250.870.210.2110.4590.94
37001GS0.0630.0070.3750.460.40.2120.7710.94
37002GS0.0630.0070.50.310.580.2121.0830.95
37003GS0.0630.0080.251.740.150.3030.4011.35
37004GS0.0630.0080.50.640.180.1530.6760.68
37005GS0.0630.0080.750.40.640.2961.3911.32
37006GS0.0630.0090.253.220.110.4070.3581.81
37007GS0.0630.0090.4381.480.240.4110.6761.83
37008GS0.0630.0090.750.750.470.411.2181.82
37009GS0.0940.010.3751.040.330.3950.7061.76
37010GS0.0940.010.50.660.520.3921.0181.75
37011GS0.0940.010.750.380.90.3941.651.75
37012GS0.0940.0120.3752.780.20.6610.5772.94
37013GS0.0940.0120.6251.30.430.6631.0572.95
37014GS0.0940.01210.710.790.6641.7922.96
37015GS0.0940.0140.3756.170.141.0140.5124.51
37016GS0.0940.0140.6252.950.2810.9064.45
37017GS0.0940.01411.650.51.0021.5044.46
37018GS0.1250.01611.30.671.0731.674.77
37019GS0.1250.0161.251.040.841.0782.0924.8
37020GS0.1250.0161.50.781.121.0782.6234.8
37021GS0.1250.01812.520.481.4981.4756.66
37022GS0.1250.0181.3751.740.681.4892.0596.62
37023GS0.1250.01821.131.051.4883.0516.62
37024GS0.1250.0214.430.351.9641.3538.73
37025GS0.1250.021.3753.040.511.9551.8868.7
37026GS0.1250.02220.781.9692.7858.76
37027GS0.1880.02212.170.631.6761.6347.46
37028GS0.1880.0221.3751.390.991.6822.3697.48
37029GS0.1880.02220.871.581.6763.5847.46
37030GS0.1880.02615.30.452.8661.44612.75
37031GS0.1880.0261.3753.480.682.8782.05912.8
37032GS0.1880.02622.171.092.8783.09412.8
37033GS0.1880.031113.730.284.7551.28121.15
37034GS0.1880.0311.57.990.484.7571.98221.16
37035GS0.1880.0312.54.430.874.7613.37121.18
37036GS0.250.02612.430.692.0821.6919.26
37037GS0.250.0261.3751.481.142.0912.529.3
37038GS0.250.02620.871.942.0893.9449.29
37039GS0.250.031160.473.5061.46815.6
37040GS0.250.0311.53.30.853.5062.3515.59
37041GS0.250.0312.51.741.623.5164.1215.64
37042GS0.250.037115.380.35.6511.30225.14
37043GS0.250.0371.756.950.685.7052.42725.38
37044GS0.250.03733.561.325.6944.31825.33
37045GS0.3750.03112.690.722.241.729.96
37046GS0.3750.0311.251.561.242.2372.4889.95
37047GS0.3750.0311.51.131.712.2363.2149.95
37048GS0.3750.03716.690.483.881.47517.26
37049GS0.3750.0371.52.781.143.8832.64517.27
37050GS0.3750.0372.51.222.623.8885.12117.3
37051GS0.3750.041111.040.395.1911.38923.09
37052GS0.3750.0411.753.651.185.212.93123.17
37053GS0.3750.0412.52.171.995.2174.48723.21
37054GS0.3750.045117.550.326.7611.31730.07
37055GS0.3750.0451.756.520.846.692.59229.76
37056GS0.3750.04532.781.986.7064.9829.83
37057GS0.3750.0551.2530.240.3211.7981.57452.48
37058GS0.3750.0552.2512.080.8111.7413.05652.22
37059GS0.3750.0554.55.131.8911.7096.39452.08
37060GS0.50.0371.252.610.942.842.18612.63
37061GS0.50.0371.51.481.652.8363.14912.61
37062GS0.50.03720.673.122.4865.11811.06
37063GS0.50.0411.253.220.7832.02813.35
37064GS0.50.0411.751.391.813.0233.56413.45
37065GS0.50.0412.250.962.943.3085.18814.71
37066GS0.50.0451.3754.950.864.9442.23221.99
37067GS0.50.04521.821.894.1423.88618.43
37068GS0.50.0452.50.72.722.5925.22211.53
37069GS0.50.0551.37513.560.558.7181.92238.78
37070GS0.50.0552.255.31.48.7423.65438.89
37071GS0.50.0554.523.728.748.22238.88
37072GS0.50.0631.37527.290.3912.6091.76456.09
37073GS0.50.0632.59.31.1412.6453.64556.25
37074GS0.50.06353.742.8412.6277.84456.17
37075GS0.6250.05523.911.526.9413.51930.87
37076GS0.6250.0552.752.172.746.9445.48630.89
37077GS0.6250.05541.224.896.9488.88930.9
37078GS0.6250.06327.731.099.9643.09444.32
37079GS0.6250.06333.742.269.9485.26144.25
37080GS0.6250.0634.52.094.059.9548.55444.28
37081GS0.6250.069212.250.8712.6752.87156.38
37082GS0.6250.06936.171.7212.6174.72156.12
37083GS0.6250.0694.53.483.0612.6377.5656.21
37084GS0.750.05522.951.695.7993.69225.8
37085GS0.750.0552.51.742.885.8055.3825.82
37086GS0.750.0553.50.875.765.8059.2625.82
37087GS0.750.06325.741.278.4683.26737.67
37088GS0.750.06332.353.18.4646.09637.65
37089GS0.750.06351.046.968.4611.96237.63
37090GS0.750.075214.080.8313.6562.82860.75
37091GS0.750.07535.822.0113.6965.00960.92
37092GS0.750.07552.694.3413.6969.34260.92