Main Data
- Description:
- Heavy plate mill ZC-worm gear set
- Module: 17 mm
- Helical angle: 33°36’11”
- Helical hand: Right
- Heavy plate mills ZC-worm
- GEARX No.: SW17-1RG
- Module: 17 mm
- No. of starts: 1
- Helical angle: 33°36’11”
- Helical hand: Right
- Material: 20CrMnMo
- Heat treatment: Through quenching and tempering, then carburizing hardened
- Tooth hardness: HRC48-52
- Case hardening depth(CHD): 1.5 mm
- Tip Diameter: 289 mm
- Reference diameter: 255 mm
- Root diameter: 212.5 mm
- Face width: 400 mm
- Tooth surface finish: Ground
- Accuracy grade: ISO 6
- Weight of gear blank: 592 kg
- Weight: 348 kg
- Heavy plate mill ZC-worm gear
- GEARX No.: BWG17-64R
- Module: 17 mm
- No. of teeth: 64
- Helical angle: 33°36’11”
- Helical hand: Right
- Material:
- Centrifugal casting bronze ZQSn10-1
- Tip Diameter: 1139 mm
- Reference diameter: 1105 mm
- Root diameter: 1062.5 mm
- Face width: 835 mm
- Tooth surface finish: Hobbing
- Accuracy grade: ISO 6
- Weight of gear blank: 5700 kg
- Weight: 3845 k
Application
- Heavy plate mills
The Main Fabrication Procedure
- Heavy plate mill ZC-worm
- Forging the gear blank
- Normalizing
- Rough machining
- Ultrasonic inspection, analyzing the chemical composition
- Quenching and tempering
- Semi-finish turning
- Rough grinding the external and ends
- Rough notch
- Rough gear grinding
- Carburizing and quenching
- Finish grinding the external and ends
- Gear grinding
- Inspection magnetic inspection the tooth flank, then magnet demagnetization
- Heavy plate mill ZC-worm gear
- Centrifugal casting the gear blank
- Rough machining
- Semi-finish turning
- Finish turning
- Hobbing
Technical Documents
- Heavy plate mill ZC-worm
- Inspection certificate of material
- Heat treatment certificate
- Certificate of ultrasonic inspection
- Magnetoscopic test certificate(on tooth flank)
- Size tolerance and geometric tolerance report
- Inspection report of tooth quality
- Heavy plate mill ZC-worm gear
- Inspection certificate of material
- Size tolerance and geometric tolerance report
- Inspection report of tooth quality
Relative Standards
- ISO/TR 10828:1997(E) Worm gears - Geometry of worm profiles
- ISO 1122-1:1998 Vocabulary of gear terms - Part 1 Definitions related to geometry
- ISO 1122-2:1999(E/F) Vocabulary of gear terms - Part 2: Definitions related to worm gear geometry
- ISO/TR 14521:2010 Gears -- Calculation of load capacity of wormgears