Wire rope sheave pulley: - Pulley plays a role of saving labor,supporting wire rope and being a guide for wire rope. Materials for wire rope sheave pulley: - For light and medium-size bridge crane, pulley can be made with gray cast iron HT15-33 and nodular QT-10. - For heavy bridge crane, pulley...
Wire rope sheave pulley:
- Pulley plays a role of saving labor,supporting wire rope and being a guide for wire rope.
Materials for wire rope sheave pulley:
- For light and medium-size bridge crane, pulley can be made with gray cast iron HT15-33 and nodular QT-10.
- For heavy bridge crane, pulley is produced with cast steel ZG25 or ZG35.
- Major diameter pulley(D>800mm)can be weld with carbon steel Q235A.
Safety Inspection of wire rope sheave pulley:
- Cuttings and dust in the oil-way and oilhole on the shaft must be cleaned. Inspect whether oilhole and oil sink on the spacer bush between the bearings is aligned or not.
- When there are flaws on the pulley, the pulley should be discarded as useless and stopped to use.
- Radial direction of pulley rope groove abrades no more than 30% of rope diameter;
- Pulley groove wall abrades no more than 30% of original wall thickness.
- Defect area in the axle hole is less than 0.25cm square, depth no more than 4mm.
