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What are the signs of corrugation in a crane sheave groove?

CQ-015 · Maintenance
Corrugation appears as ridges, valleys, or uneven wear patterns in the sheave groove that match the wire rope lay pattern.
Corrugation in crane sheave grooves manifests as alternating ridges and valleys that develop parallel to the rope's lay direction. These wear patterns create a washboard-like surface that corresponds to the individual wire strands in the rope. Visual inspection reveals uneven groove surfaces with distinct high and low points rather than smooth, uniform contact areas.
Reference: ASME B30.5 Mobile and Locomotive Cranes
Remember: "RVU - Ridges, Valleys, Uneven wear that matches rope lay"

Keywords

sheave wearwire rope maintenance

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