Supply marine stern roller We can supply marine stern roller with lr, dnv, , abs, nk, bv, rina, kr, ccs certificate etc as per customerâ??s request and drawings. 1) type: single roller, double rollers, triple rollers 2) accessories: synetic polymer bearing, stainless steel/bronze liner, , shaft support etc. 3) capacity: up to 750 tons 4) diameter: up to 5000mm 5) length: up to 9000mm 6) heavy wall construction. Class cert ccs, abs, gl, lr, nk, kr, bv can be provided. Please feel free to contact with us freely for your inquiry: info at chinatopfar dot com