- Deep Groove Ball Bearings[10]
- Thrust Ball Bearings[3]
- Other Bicycle Parts[5]
- Auto Bearing[10]
- Other Auto Parts[10]
- Pillow Block Bearings[10]
- Taper Roller Bearings[10]
- Needle Bearings[10]
- Bearing Balls[10]
- Ceramic Ball Bearing[8]
- Other Bearings[2]
- Special Bearings[5]
- Housings[2]
- Other Roller Bearings[9]
- Self-aligning Ball Bearings[1]
- Speed Reducers[2]
- Gearboxes[2]
- Packaging Machinery Parts[1]
- Material Handling Equipment Parts[1]
- Linear Bearings[9]
- Other Bearing Accessories[5]
- Transmission Chains[1]
- Angular Contact Ball Bearings[4]
- Cylindrical Roller Bearings[2]
- Sliding Bearings[2]
- Rod End Bearings[2]
- Sprockets[1]
- Contact Person : Mr. Lin Alex
- Company Name : Shanghai Yinin Imp. & Exp. Co., Ltd.
- Tel : 86-21-68551627
- Fax : 86-21-68551629
- Address : Shanghai,Shanghai,9F05,NO.2123,PuDong AVE,Pudong,Shanghai,P.R.China
- Country/Region : China
- Zip : 200135
Bearing balls of KOMASU Brand
Packaging Detail: | Metal drum(800-950kg per drum) Ton bags(1000kg per bag) |
Delivery Detail: | Within 30 days after execution of contract(less than 400MT) |
carbon steel ball:1)High hardness(60-65HRC) 2)Supplier of Norilsk/lafarge/Codelco. 3)CE,inspectorate,SGS certificates
steel ball
YNN Co is professional manufacturer which produce high/low/middle chrome grinding balls and bars(mill balls/bars).Our products are used in cement industry, chemical industry,mining industry widely and exported to USA (cement plant),Chile(copper mine),Botswana(copper mine),Iran(zinc mine),Russia(cement plant and power plant),Pakistan(cement plant)etc.
Our enterprise developed fast in recent three years.Nowadays,We have annual production capacity of 65,000 MT and own Two automatic and modern Production Lines(pictures below),take the leading position in Asian casting ball field.
Specification:
Φ12.7;Φ15;Φ17;Φ20;Φ25;Φ30;Φ40;Φ50;Φ60;Φ70;Φ80;Φ90;Φ100;Φ110;Φ120;Φ125;Φ130.
Chemcial Composition:
ITEM | Designation | Chemical Composition | ||||||
C | Si | Mn | Cr | Mo | P | S | ||
Popular Grade | ZQCr10 | 1.8-32 | 0.3-1.2 | 0.2-1.0 | 10-13 | Trace | ≤0,10 | ≤0.10 |
Cu | Ni | Nb | Ti | B | Zr | V | ||
Trace | Trace | Trace | Trace | Trace | Trace | Trace | ||
Hight Chromium Cast Grinding Balls | ZQCr26 | 2.0-30 | ≤1.0 | 0.2-1.0 | 22-28 | ≤1.0 | ≤0.10 | ≤0.08 |
ZQCr20 | 2.0-3.0 | ≤1.0 | 0.2-1.0 | 18-22 | ≤1.0 | ≤0.10 | ≤0.08 | |
ZQCr17 | 2.0-3.2 | ≤1.0 | 0.2-1.0 | 13-18 | ≤1.0 | ≤0.10 | ≤0.08 |
Propertise and Microstructure:
ITEM | Designation | Hardness(HRC) | AK(J/cm2) | Microstructure | Time of Falling Balls | |
Quenched state | Quenched state | |||||
Popuar Grade | ZQCr10 | ≥58 | ≥50 | ≥2.3 | M+C | ≥12000 |
High Chromium Cast Grinding Balls | ZQCr26 | ≥58 | ≥45 | ≥4.0 | ≥12000 | |
ZQCr20 | ≥58 | ≥45 | ≥3.5 | ≥12000 | ||
ZQCr17 | ≥58 | ≥49 | ≥3.0 | ≥12000 |
Bearing balls of KOMASU Brand