1. Bearing steel ball characteristics: good wear resistance, hardness can reach 60-62 (HRC), solid compression; 2. The bearing steel ball is a solid steel ball, which is tough, super-precision wear-resistant, oily packaging, mirror brightness, The material has good abrasion resistance and is processed into finished steel balls with high precision. Bearing steel balls can be used for welding; 3. Nine processes of fine polishing: stretching, cold forging, light ball, soft ball, heat treatment, hardening, fine grinding, sorting, packaging; 4. High-quality materials: using high-quality materials, exquisite workmanship, quality assurance, suitable for many purposes; 5. Exquisite craftsmanship: After several processes of stamping, annealing, thickening, anti-extrusion testing, durable; 6. Solid compression resistance: The bearing steel ball is a solid steel ball with strong compression resistance; at the same time, it has good toughness, not easy to break, high hardness and high precision, and is suitable for precision instruments and mechanical equipment 7. Scope of application: motors, aerospace, civil automobiles, CNC machine tools, mechanical engineering, bicycles, motorcycles, ships and yachts, etc. 1. Product material: bearing steel GCr15 (chemical composition: GC15 refers to a kind of high carbon chromium bearing steel with less alloy content, after quenching and low temperature tempering, it has high hardness, uniform structure and good wear resistance , High contact fatigue performance.) 2. Product attributes: G25 bearing steel ball, high-precision bearing steel ball, bearing steel ball 3. Production process: stamping, annealing, hard grinding, fine grinding and other multiple processes 4. Surface treatment: polishing, demagnetization, fine grinding 5. Product advantages: smooth and flat surface, high strength andwear resistance, super toughness colour: silver Material: steel Package Contents: 90*High precision G25 bearing steel ball 3/32inch 70*High precision G25 bearing steel ball 1/8inch 60*High precision G25 bearing steel ball 5/32inch 50*High precision G25 bearing steel ball 3/16inch 50*High precision G25 bearing steel ball 7/32inch 50*High precision G25 bearing steel ball 1/4inch 30*High precision G25 bearing steel ball 9/32inch 30*High precision G25 bearing steel ball 5/16inch 30*High precision G25 bearing steel ball 11/32inch 20*High precision G25 bearing steel ball 3/8inch 20*High precision G25 bearing steel ball 13/32inch Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.