Ball Bearings Steel Balls As an indispensable part of mechanical motion, bearings play a vital role, with steel balls being one of its core components. I. Classification of Ball Bearings 1. Carbon steel balls are primarily composed of carbon and iron, with lower hardness but relatively inexpensive, suitable for lighter load applications such as household appliances. 2. Chrome steel balls are mainly made of chrome, iron, and carbon, with higher hardness than carbon steel balls, capable of withstanding greater loads, making them ideal for high-speed, high-load environments such as aircraft and automobiles. 3. Additionally, there is a type of ball bearing steel ball known as stainless steel balls. These are primarily composed of chrome, nickel, and iron, offering corrosion resistance and suitable for special environments like marine and chemical industries. II. Manufacturing Process 1. Raw Material Preparation: Mix suitable metal materials in a specific ratio to form steel with a particular formula. 2. Spheroid Preparation: Heat and roll the mixed steel to form spheroids of a certain size. 3. Spheroid Shaping: Place the spheroids in molds for shaping. There are two shaping methods: pressure molding and rotational molding. 4. Spheroid Annealing: Anneal the spheroids to achieve better mechanical properties. 5. Spheroid Polishing: Polish the spheroids to improve surface quality. 6. Inspection and Packaging: Inspect the spheroids and package them upon meeting standard requirements. III. Main Functions 1. Can bear loads on the bearings, achieving rotational motion through rolling friction. 2. Can transfer power, ensuring smooth operation of mechanical equipment. 3. Rolling friction is less than sliding friction, reducing wear on mechanical equipment. 4. Offers better mechanical properties and surface quality, enhancing the stability and lifespan of mechanical equipment. IV. Application Fields Gcr15 ball bearing steel balls are widely used in high-speed, low-noise bearings, bicycles, motorcycles, cars, slides, ball joints, luggage, the electronics industry, and can also be used for grinding other media. V. Characteristics Magnetic, ferritic steel, oil-packed, HRC 60-66.