JUBOFLEX® couplings with removable hub Couplings composed of two sleeves made of die steel especially bored to receive a universal hub (not supplied), and an elastic element made of natural rubber fitted with a pretensioning band (to be removed after assembly). These properties allow the coupling to overcome any torque irregularities and major misalignments. Quick and Easy to Fit Without Machining; Highly Compact Simplified Axial Positioning 注 Replacement elastic elements are available separately. HRC 类型联轴器