Bearing Steel Ball Stainless Steel Ball Grinding Steel Ball Forged Steel Ball Carbon Steel Ball Chrome Ball Metal Ball Mill Ball Ceramic Ball 3.969 4.763 7.144

Product Details
Customization: Available
Customized: Non-Customized
Certification: ISO
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Registered Capital
1000000 RMB
Plant Area
1001~2000 square meters
  • Bearing Steel Ball Stainless Steel Ball Grinding Steel Ball Forged Steel Ball Carbon Steel Ball Chrome Ball Metal Ball Mill Ball Ceramic Ball 3.969 4.763 7.144
  • Bearing Steel Ball Stainless Steel Ball Grinding Steel Ball Forged Steel Ball Carbon Steel Ball Chrome Ball Metal Ball Mill Ball Ceramic Ball 3.969 4.763 7.144
  • Bearing Steel Ball Stainless Steel Ball Grinding Steel Ball Forged Steel Ball Carbon Steel Ball Chrome Ball Metal Ball Mill Ball Ceramic Ball 3.969 4.763 7.144
  • Bearing Steel Ball Stainless Steel Ball Grinding Steel Ball Forged Steel Ball Carbon Steel Ball Chrome Ball Metal Ball Mill Ball Ceramic Ball 3.969 4.763 7.144
  • Bearing Steel Ball Stainless Steel Ball Grinding Steel Ball Forged Steel Ball Carbon Steel Ball Chrome Ball Metal Ball Mill Ball Ceramic Ball 3.969 4.763 7.144
  • Bearing Steel Ball Stainless Steel Ball Grinding Steel Ball Forged Steel Ball Carbon Steel Ball Chrome Ball Metal Ball Mill Ball Ceramic Ball 3.969 4.763 7.144
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Basic Info.

Model NO.
3.969 4.763 7.144
Standard Parts
Yes
Universal
Yes
Type
Bearing Ball
Material
Chrome Steel
Size
3.0--100mm
Others
Chrome Steel/Carbon Steel/Ceramic/Stainless Steel
Pakcing
20kgs/Carton
Hardness
HRC58-62
Transport Package
Carton
Specification
3.969 4.763 7.144
Trademark
UJK
Origin
China
HS Code
8482910000
Production Capacity
5000000000

Product Description

Bearing Steel Ball Stainless Steel Ball Grinding Steel Ball Forged Steel Ball Carbon Steel Ball Chrome Ball Metal Ball Mill Ball Ceramic Ball 3.969 4.763 7.144

 

1. Bearing Steel Balls (Chrome Steel Balls)

Material: High-carbon chromium alloy steel (AISI 52100, SUJ2, GCr15) with excellent hardness (HRC 58-66) and wear resistance.
Features: Precision-ground, low noise, and long service life. Ideal for bearings, automotive parts, and precision machinery.
Size Range: 1mm - 50mm (standard), custom sizes available.
Grades: G10-G100 (ISO 3290).

2. Stainless Steel Balls

Material: Corrosion-resistant stainless steel (AISI 304, 316, 420, 440C).
Features: Anti-rust, high durability, and suitable for food, medical, marine, and chemical industries.
Size Range: 0.5mm - 150mm.
Types:

  • 304/316: Non-magnetic, general-purpose.

  • 420/440C: Magnetic, heat-treated for higher hardness (HRC 58-60).

3. Carbon Steel Balls

Material: Low/medium carbon steel (AISI 1010, 1085) or high-carbon steel (AISI 1095).
Features: Cost-effective, used in low-load applications like bicycle parts, casters, and hardware.
Size Range: 1mm - 100mm.

4. Forged Steel Balls (Grinding Media Balls / Mill Balls)

Material: Forged high-carbon or alloy steel (B2, B3, 60Mn).
Features: High impact resistance for mining, cement, and power plants.
Size Range: 20mm - 150mm.
Hardness: HRC 55-65.

5. Grinding Steel Balls (Cast Steel Balls)

Material: High-chrome cast iron (Cr10-Cr30) or alloy steel.
Features: Superior wear resistance for ball mills in mining and milling industries.
Size Range: 15mm - 125mm.
Chrome Content: 10%-30% (higher Cr = longer lifespan).

6. Ceramic Balls

Material: Zirconia (ZrO2), silicon nitride (Si3N4), or alumina (Al2O3).
Features: Non-corrosive, electrically insulating, and heat-resistant. Used in aerospace, valves, and bearings.
Size Range: 0.5mm - 100mm.

7. Metal Balls (General-Purpose)

Material: Brass, copper, titanium, or tungsten carbide.
Applications: Decorative, industrial, or specialized mechanical uses.
 

Steel Ball Size Reference Chart

Diameter (mm) Diameter (Inches) Tolerance Grade (ISO 3290) Typical Applications
0.5 0.0197" G10-G100 Precision instruments, micro bearings
1.0 0.0394" G10-G100 Medical devices, optical equipment
1.588 1/16" G5-G20 Small bearings, model parts
2.0 0.0787" G10-G100 Electronics, micro motors
3.0 0.1181" G10-G100 Bicycle bearings, slides
3.969 5/32" G5-G20 Industrial pulleys, machinery
4.763 3/16" G5-G20 Automotive components, household appliances
5.0 0.1969" G10-G100 Pump valves, transmission parts
6.0 0.2362" G10-G100 Power tools, fitness equipment
6.350 1/4" G5-G20 Standard bearings (e.g., 608 bearings)
7.938 5/16" G5-G20 Industrial bearings, mechanical drives
9.525 3/8" G5-G20 Automotive hubs, heavy machinery
12.0 0.4724" G10-G100 Construction machinery, steering systems
12.700 1/2" G5-G20 Large bearings, gearboxes
15.0 0.5906" G10-G100 Wind turbine equipment, heavy-duty machines
19.050 3/4" G5-G20 Mining machinery, ball mills
25.0 0.9843" G10-G100 Cement industry, large transmissions
25.400 1" G5-G20 Heavy industrial applications



Bearing Steel Ball Stainless Steel Ball Grinding Steel Ball Forged Steel Ball Carbon Steel Ball Chrome Ball Metal Ball Mill Ball Ceramic Ball 3.969 4.763 7.144

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