※ Wire diameter: 0.4/0.7/0.8mm, etc. (optional, otherwise, please contact customer service to send the link)
※ Material: 304 stainless steel
※ Surface treatment: natural color
※ Specification expression = wire diameter*small diameter/large diameter*length*number of turns,
Namely: d (wire diameter) * D1 minor diameter / D2 major diameter * L length * N spring coil number (unit: mm)
※ Length (mm): 8/10/12/14/15/20mm (optional)
Pitch diameter = outer diameter-1 times the wire diameter
Inner diameter = outer diameter-2 times the wire diameter
Unit of stiffness/elasticity coefficient: N/mm
Effective laps = total laps-2