Harken#174;spinnakerpolecarsfeaturerecirculatingballbearingstopermitadjustmentunderanyload.Theyrollfreelyonlow-beamtr***elertracktoallowcrewtoadjustforoptimalsailshape.Theringfittingacceptspistonpoleendsforend-for-endjibing.三角帆杆车特征循环滚珠轴承的调整任何负载下的许可证。他们自由地卷在低光束旅行的轨道允许船员调整帆的形状优化。环拟接受活塞杆端端端相符。)