Main Data
- Description: Ship lift wormrack
- GEARX No.: CWR133-490Q
- Minimum thickness of screw: 133 mm
- Minimum space width of screw: 244 mm
- Depth of screw: 100 mm
- Screw pitch: 450 mm
- No. of threads: 11
- Material: G35CrNiMo6-6+QTI DIN EN 10293
- Heat treatment: Through quenching and tempering
- Hardness: HB250±20
- Length: 4,930 mm
- Width: 1,980 mm
- Height: 553 mm
- Thread surface finish: Thread milling by gantry miller
- Accuracy grade:
- Tolerance for thread pitch: ±0.1 mm
- Tolerance for thread helix angle: ±0.05°
- Weight of worm-rack blank: 44,000 kg
- Weight of worm-rack: 24,000 kg
Application
- Vertical ship lift system
The Main Fabrication Procedure
Technical Documents
- Inspection certificate of material
- Heat treatment certificate
- Certificate of ultrasonic inspection
- Magnetic particle detection certificate(on thread flank)
- Size tolerance and geometric tolerance report
- Inspection report of thread quality
Relative Standards