MORDEC WIRE ROPE SHEAVE GAUGE
An extremely useful tool to identify the condition of the Sheave Groove
- Available in 12 sizes
- Designed with a +5% tolerance nominal diameter of the groove
Sheaves should be checked periodically for wear in the grooves which may cause abrasion, broken wires and bird caging of the wire rope.
A correct sized Sheave Groove allows a wire rope to pass through unhindered by friction or obstructions. According to ISO 16625, the groove of the drum and sheave should have a diameter within 5% to 10% bigger than wire rope diameter.
To determine the amount of wear:
- Place the proper size Mordec Wire Rope Sheave Gauge in the sheave.
- Shine a light behind the gauge. Light should not be detected between the gauge and the root of the groove.
- If wear is evident, the sheave should be re-machined or replaced.
Tight Sheave: Too small of a groove compresses the rope and reduces its useful life because the rope will roll into the sheave groove introducing torque and twist which may cause high stranding and bird- cages.
Loose Sheave: When groove become overly worn or are too large, they may allow excessive movement, which stresses the rope and lead to a reduction of the service life.