Spheroelastic Rubber Bearing As Per Frontier Drawing No.Fasl/Sb/0848. For H Type Ti Ght Lock Coupler (Frontier Make) For High Tensile Tight Lock Coupler With Aar H Type Head And Balanced Draft Gear To Rdso Specn. No. Rdso/2011/Cg-03 (Rev01) [ Warranty Period: 30 Months After The D Ate Of Delivery ] ]