Stock Drive Products & Sterling Instrument - SDP/SI Datasheets for Power Springs and Spring Motors

Power springs and spring motors are rotational-drive springs that are wound tightly and mounted on an arbor. They are used in applications such as retractable reels, tape measures, and retracting seat belts.
Power Springs and Spring Motors: Learn more

Product Name Notes
Neg'ator Spring Motors (inch) -- A 3X51-20002 0.13 lb-in Torque, 2500 Cycles Fatique Life, 0.002" Thick, 0.25" Width
Neg'ator Spring Motors (inch) -- A 3X51-20004 0.34 lb-in Torque, 2500 Cycles Fatique Life, 0.004" Thick, 0.25" Width
Neg'ator Spring Motors (inch) -- A 3X51-20005 0.65 lb-in Torque, 2500 Cycles Fatique Life, 0.005" Thick, 0.312" Width
Neg'ator Spring Motors (inch) -- A 3X51-20006 1.13 lb-in Torque, 2500 Cycles Fatique Life, 0.006" Thick, 0.375" Width
Neg'ator Spring Motors (inch) -- A 3X51-20007 1.81 lb-in Torque, 2500 Cycles Fatique Life, 0.007" Thick, 0.437" Width
Neg'ator Spring Motors (inch) -- A 3X51-20008 2.65 lb-in Torque, 2500 Cycles Fatique Life, 0.008" Thick, 0.5" Width
Neg'ator Spring Motors (inch) -- A 3X51-20009 3.87 lb-in Torque, 2500 Cycles Fatique Life, 0.009" Thick, 0.562" Width
Neg'ator Spring Motors (inch) -- A 3X51-20010 5.50 lb-in Torque, 2500 Cycles Fatique Life, 0.01" Thick, 0.625" Width
Neg'ator Spring Motors (inch) -- A 3X51-20011 7.06 lb-in Torque, 2500 Cycles Fatique Life, 0.011" Thick, 0.687" Width
Neg'ator Spring Motors (inch) -- A 3X51-20012 9 lb-in Torque, 2500 Cycles Fatique Life, 0.012" Thick, 0.75" Width