2). convenient maintenance,small size and light weight
3).widely used in medium and minor power transmission systems driven by motors such as speed reducers,hoist,compressor,conveyer,spinning and weaving machine and ball mill.
Permittable relative displacement
1). Radial displacement:0.2-0.6mm
2). Angle displacements:0°30-1°30
Coupling are designed for general-purpose application where the demands for a low cost, spacer type flexible coupling is required. HRC Coupling absorb shock load, dampen small amplitude vibration and allow for incidental misalignment. HRC Coupling have integrally cast driving dog to maintain a positive drive in the unlikely event of the flexible element being destroyed.
With the addition of taper bush HRC Coupling permit quick and easy assembly. HRC Coupling require no lubrication and are virtually maintenance free making them suitable for most environment. HRC Coupling are offered in pilot bore, taper bush with both face/hub mount and finished bore with keyways
There are other item such as aluminum flexible coupling, stainless steel flexible coupling available