19 X 7 ROPE In an application where a single part hoist rope is used to lift a free load, or where rotation resistant properties are essential for rope performance, a 19 x 7 rope can be used. The rotation resistant characteristic of 19 x 7 rope is achieved by laying six strands around a core strand in one direction, and then laying 12 strands around the first operation in the opposite direction. Thus, when the rope is in tension, opposing rotational forces are created between the inner and outer layers. Ropes of 19 x 7 construction require special handling, selection and usage considerations, due to their construction
wire ropes will wear out eventually and gradually lose work capability throughout their service life.That’s why periodic inspec-tions are critical.Applicable industry standards such as ASME B30.2 for overhead and gantry cranes or federal regulations suchas OSHA refer to specific inspection criteria for varied applications.
THREE PURPOSES FOR INSPECTION
Regular inspection of wire rope and equipment should be performed for three good reasons
It reveals the rope’s condition and indicates the need for replacement.
It can indicate if you’re using the most suitable type of rope.
It makes possible the discovery and correction of faults in equipment or operation that can cause costly accelerated rope wear.
All wire ropes should be thoroughly inspected at regular intervals.
The longer it has been in service or the more severe the serv-ice, the more thoroughly and frequently it should be inspected.
Be sure to maintain records of each inspection.
Meets or exceeds stranding and mechanical properties outlined in Federal Specification RR-W-410
Meets or exceeds strength requirements outlined in Federal SpecificationRR-W-410 for material type and diameter
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