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Item Number.:
Constant Force Springs
Product Name:
Constant Force Springs, Constant tension springs, custom design springs, Quality Springs manufacturer

Constant force springs features its offer high force output with very small space requirements and its will providing a smooth, uniform load through its deflection. Deflection is limited only by the length of material in the spring. For general, its be used to hair dryers, windows and toys to gym equipment and adjustable countertops , LCDs , retractors , staple guns , fans , window curtains , door closers , cable retractors, cabinet and furniture components and others requiring a relatively long travel at substantially constant force or pull.

1.Constant retracting force (zero gradient).
2.Rated load reached after an initial deflection of 1.25 times the outside diameter.
3.No inter coil friction (smooth operation).

【Constant force spring theoretical analysis】
Material thickness t Material width b Spring Inside diameter Outside diameter end length Load(Kg) Load(N) operating stress Spring length (Recommend) work length Life cycles prediction
mm mm mm mm mm ±10% ±10% N/mm2 mm mm Cycles
SUS301 0.2 10.5 28.9 30.5 13 0.29 2.84 1289.46 373 215 50K
Input parameters section Results section

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