This is a Screw Pin Type Bow Shackle. This shackle is mad up of mild steel and can support a load weighing 35 Metric Tonne.

PPG] Whitford Xylan coatings have a broad range of properties which make them ideal for a variety of applications, especially on machined components and fasteners. [PPG] Whitford Xylan coatings differ from traditional fluoropolymer coatings are composite material Lubricants with the lowest-known coefficient of friction are combined with the newest high temperature resistant organic polymers to create [PPG] Whitford Xylan coatings.

The guide ring or wear ring guides a hydraulic cylinder piston and rod and absorbs lateral forces. To avoid metal to metal contact between the moving parts i.e hydraulic rod & piston of the cylinder guide rings used.

The advantage of these non-metallic guide rings are , among others, a high bearing capacity, the elimination of local stress concentrations, wear resistance , a low coefficient of friction and low maintenance cost .