Main Data
- Description: Aluminum plate rolling mill gear shaft
- GEARX No.: SDH30-23G
- Module: 30 mm
- No. of teeth: 23
- Pressure angle: 20°
- Helical angle: 25°
- Material: 17CrNiMo6
- Heat treatment: Through quenching and tempering, then carburized hardened.
- Tooth hardness: HRC58-62
- Case hardening depth(CHD): 3.1-3.6 mm
- Tip Diameter: 821.33 mm
- Reference diameter: 761.33 mm
- Face width: 2×740 mm
- Tooth surface finish: Ground
- Accuracy grade: DIN 6
- Rotational speed: 2981 RPM
- Weight of gear blank: 16,523 kg
- Weight: 10,740 kg
Application
- Aluminum plate rolling mill
The Main Fabrication Procedure
- Forging the gear blank.
- Rough machining
- Ultrasonic inspection
- Quenching and tempering to HB270-320
- Turning the gear.
- Hobbing
- Dimensional (run out) and quality test of the hobbing
- Grinding
- Inspection magnetic inspection the tooth flank, and then magnet demagnetization
- Packaging and delivery to the customer
Technical Documents
- Inspection certificate of material
- Heat treatment certificate
- Certificate of ultrasonic inspection
- Magnetic particle detection certificate(on tooth flank)
- Size tolerance and geometric tolerance report
- Inspection report of tooth quality
Relative Standards
- ANSI/AGMA 6004-F88 Gear Power Rating for Cylindrical Grinding Mills, Kilns, Coolers and Dryers
- ISO 6336 Calculation of load capacity of spur and helical gears
- DIN 3990 Calculation of load capacity of cylindrical gears