Extension Spring - brand new OEM part from JOHN DEERE manufactory. Extension Spring Garage Door (6.5mm OD, 1.5kg Max Load, 39-72mm Length Extension Spring We are specialized in the manufacturing, designing and analyzing all kinds of spring, such as wave springs (including of compression wave spring, wave single turn and nested spring), linear expander, retaining rings (including of internal, external, single turn and more turns), constant force spring, power springs (including of general and prestressed types). Technical Information for Custom Extension Spring Designs The section below gives technical information on extension spring design. Springs | Gregg Distributors LP
