Composite Ball Bearing BlocksComposite ball bearing blocks are engineered for competitive sailing.The high strength composite sideplates are to provide top performance of working loads.29mm Single Block -BB-0215FSheaves: 29mmMaximum line: 8mmWeight:17gMax. working load: 160kgMax breaking load: 500kgs MATERIALSSheave: self-lubricant acetal compositeBall Bearing:self-lubricant acetal compositeSideplates/frames: reinforced glass fiber Nylon composite with UV stablizedShackle: Forged Grade 316 stainless steelAPPLICATIONSMainsheet system, jib and spinnaker sheets on dinghies to 5m(16ft)Halyard, vang and backstay on boats to 8m (26ft)Control lines on boats of all sizes
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