Double row deep groove ball bearing

The specific structure of Double row deep groove ball bearing

Double row deep groove ball bearings, as the name suggests, have two rows of balls arranged between the inner ring and the outer ring. This design allows the bearing to bear a certain axial load while bearing radial loads. Thereby improving the bearing capacity and stability.

Double row deep groove ball bearings are mainly composed of inner rings, outer rings, balls, cages and sealing devices. The inner ring is the part that closely matches the bearing and the shaft. It is usually made of high-carbon chromium bearing steel, which has high hardness and wear resistance. The inner ring is machined with deep groove raceways that match the balls. The surface of the raceways is precision ground to ensure that the balls can roll smoothly in the raceways.
The outer ring is the part where the bearing matches the external structure and is also made of high-carbon chromium bearing steel. The outer ring is also processed with deep groove raceways, which correspond to the inner ring raceways and form a rolling space for the balls. The size and shape of the outer ring raceway are precisely designed to ensure that the balls are evenly stressed during rolling and reduce wear. Balls are the core components of double row deep groove ball bearings and are usually made of alloy steel with high hardness and high wear resistance. The balls are located between the inner and outer raceways and bear radial and axial loads. The balls in double-row deep groove ball bearings are arranged in double rows, that is, the balls in each row are distributed on both sides of the inner and outer ring raceways, forming two independent rolling channels. This design allows the balls to be evenly distributed when the bearing is loaded, improving the bearing's load-bearing capacity and stability. The cage is used to fix the position of the balls and prevent them from colliding and rubbing with each other during rolling. The cage of double row deep groove ball bearings is usually stamped from steel plates, and its shape and size are precisely calculated and designed to ensure uniform distribution and stable operation of the balls in the raceway. In order to prevent dust, moisture and other contaminants from entering the inside of the bearing, double row deep groove ball bearings are usually equipped with sealing devices. The sealing device is made of materials such as rubber or metal and fits closely between the inner and outer rings of the bearing to form an effective barrier.

One of the biggest advantages of double-row deep groove ball bearings is their strong load-bearing capacity. Due to the double-row ball arrangement, this bearing can effectively resist axial loads while bearing radial loads. This dual load-bearing capacity makes double-row deep groove ball bearings perform well under high loads and complex working conditions, and is suitable for various heavy machinery and high-speed rotating equipment. Double-row deep groove ball bearings also have significant advantages in terms of stability. The design of the double-row balls makes the bearings more evenly stressed during operation, reducing wear and failure caused by uneven loads. In addition, due to the increased number of balls, the stiffness of the bearing is also increased, further enhancing its stability. This stability enables double-row deep groove ball bearings to maintain excellent performance under severe working conditions such as high-speed operation and frequent starts and stops. Double row deep groove ball bearings have a relatively long service life. Due to the use of high-quality materials and precise manufacturing processes, double row deep groove ball bearings have low friction coefficients and wear rates, and their good heat dissipation properties can also be effective. Reduce heat build-up and extend bearing life, making double row deep groove ball bearings an economical and reliable bearing choice.

Double row deep groove ball bearings occupy a place in the field of bearing technology with their unique structure and powerful performance. By in-depth understanding of its specific structure and working principle, we can better apply this bearing type and improve the operating efficiency of mechanical equipment. and stability.