Gear ring
Weight: 10~35T
Applicable devices: rotary kiln, ball mill, tube mill
Application: Cement, building material, metallurgy etc.
Customizable or not: Yes
Product introduction
Gear ring is the main part of rotary kiln and ball mill which has to run for a long time, therefore, there is high quality requirement for gear ring in production.
Our main material for the Gear ring is similar to followings:
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Standard Specifications for Cast Steel |
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Country |
Standard |
Grade |
| United Kingdom | BS EN 10083/2-1991 | C45 |
| USA | ASTM A 29/A29M-04 | 1045 |
| Germany | DIN EN 10083-2-2006 | C45/CK45 |
| Japan | JIS G5111 | SCC5 |
| International | ISO 683/1 | C45/C45E4/C45M2 |
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Standard Specifications for Cast Steel |
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Country |
Standard |
Grade |
| United Kingdom | BS 970-1 | 708 M40 |
| USA | ASTM A 29/A29M-04 | 4140/4142 |
| Germany | DIN EN 10083-1-1996 | 42CrMo4 |
| Japan | JIS G4053-2003 | SCM440 |
| International | ISO 683/1 | 3 |
Heavy Load Transmission Gear Ring Hardness Comparison
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Type |
Treatment |
Hardness |
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Pinion |
Gear |
Pinion |
Gear |
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Spur Gear
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Quenching & Tempering
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Normalizing |
240~270HB |
180~220HB |
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Quenching & Tempering |
260~290HB |
220~240HB |
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|
Quenching & Tempering |
280~310HB |
240~260HB |
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Quenching & Tempering |
300~330HB |
260~280HB |
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Helical Gear |
Quenching & Tempering |
Normalizing |
240~270HB |
160~190HB |
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Normalizing |
260~290HB |
180~210HB |
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Quenching & Tempering |
270~300HB |
200~230HB |
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|
Quenching & Tempering |
300~330HB |
230~260HB |
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Advantage
Shanghai Special Metal Co., Ltd adopts unique heat treatment to optimize the gear ring structure, to enhance hardness、wear resistance and impact force.
Shanghai Special Metal Co., Ltd uses high strength steel to cast gear ring and optimize rotary kiln to ensure the stability under long working time and prolongs service time.
Shanghai Special Metal Co., Ltd has a strong ability of producing steel casting and we can do mass production of gear ring in short cycle with large amount.
Production Process
1. Wooden pattern Production
2. Molding
3. Pouring
4. First cleaning
5. Heat treatment – grinding (inspection)
6. Rough machining (inspection)-finishing machining (inspection)
7. Packing-delivering
Quality assurance
The fabrication route is governed by the provisions of the implemented Quality System ISO 9001: 2000. The standard documentation ensures the full traceability of every process step:
• Manufacturer test certificates according to DIN EN 10.204 § 3.1 including chemical composition, mechanical properties and non-destructive examination;
• Dimensional check supported with a “as-built“ sketch;
• Record of the heat treatment chart;
Pictures:
