Main Data
- Description: Cement mill spiral bevel gear
- GEARX No.: SB27-61RG
- Module: 27 mm
- No. of teeth: 61
- Pressure angle: 20°
- Helical angle: 35°
- Helical hand: Right
- Gear tooth system: Gleason
- Material: 17CrNiMo6
- Heat treatment: Through quenching and tempering, then carburizing hardened
- Case hardening depth(CHD): 3.50 mm
- Tooth hardness: HRC59~63
- Tip Diameter: 1630 mm
- Face width: 210 mm
- Tooth surface finish: Ground
- Accuracy grade: DIN 6
- Weight: 378.9 kg
Application
The Main Fabrication Procedure
- Forging the gear blank.
- Normalizing
- Rough machining
- Ultrasonic inspection, analyzing the chemical composition and testing the mechanical property of sample
- Quenching and tempering
- Grinding datum plane
- Milling
- Carburizing and tempering
- Turning the the carbon layer
- Hardening and tempering( 2 times)
- Shot peening
- Finish turning
- Finish grinding
- Gear grinding
- Inspection magnetic inspection the tooth flank, and then magnet demagnetization
- Mating
Technical Documents
- 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
- Tooth contact pattern report
Relative Standards
- DIN 3965 Pt 1 08.86 - Tolerancing of bevel gears - Basic concepts
- DIN 3965 Pt 2 08.86 - Tolerancing of bevel gears - Tolerances for individual parameters
- DIN 3965 Pt 3 08.86 - Tolerancing of bevel gears - Tolerances for tangential composite errors
- DIN 3965 Pt 4 08.86 - Tolerancing of bevel gears - Tolerances for shaft angle errors and axes intersection
- DIN 3971 07.80 - Definitions and parameters for bevel gears and bevel gear pairs