ZWP Shafting 40x36x(20)H, 960mm long, : Walterscheid W, WWE, and WWZ Series. , Web Notes: and durability. Shaft is 40 mm (major) and 36 mm (minor) with a 960 mm total length. Fits, Web Notes: New replacement for Walterscheid ZWP Shafting. ZWP shafting is heated treated for extra toughness