30204 Taper Roller Bearing , Precision High Load Tapered Wheel Bearing

30204 Tapered Roller Bearing: High Load & Precision Performance

I. Product Overview​

The 30204 tapered roller bearing is an indispensable key component in the mechanical transmission system. With its unique structural design and excellent performance, it provides a solid guarantee for the stable operation of various mechanical equipment. This bearing can withstand large radial loads and unidirectional axial loads at the same time, playing an important role in scenarios with high requirements for bearing capacity and running accuracy. It is widely used in industries such as automobile manufacturing, machine tool processing, and heavy machinery, and is a core component to ensure efficient and reliable operation of equipment.​

II. Structural Design​

1. Precise Cooperation between Rollers and Raceways: The 30204 tapered roller bearing is equipped with frustum-shaped rollers inside, which are precisely guided by the large rib of the inner ring. The vertices of the conical surfaces of the inner ring raceway surface, outer ring raceway surface, and roller rolling surface cleverly converge at the same point on the center line of the bearing. This design enables the rollers to achieve pure rolling on the raceway surfaces. The bearing achieves force balance through the resultant force of the inner and outer ring raceway surfaces and the action and reaction force on the large rib of the inner ring. When the equipment is running under complex loads, this structure can effectively disperse stress, ensure the smooth operation of the bearing, reduce the probability of wear, and prolong the service life.​

2. Separable Inner and Outer Rings: The bearing adopts a structural design where the inner ring assembly and the outer ring can be separated, which greatly facilitates installation and maintenance operations. During installation, the inner ring and outer ring can be installed separately, and the axial clearance and radial clearance can be flexibly adjusted to adapt to different working conditions. At the same time, both the inner ring and the outer ring can be installed with an interference fit to ensure that the bearing fits tightly with the shaft and bearing seat during high-load operation, avoiding loosening, thereby improving the running accuracy and stability of the equipment.​

III. Dimensional Specifications​

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IV. Performance Advantages​

1. Excellent Bearing Capacity: The 30204 tapered roller bearing, with its unique roller and raceway design, has a large contact area between the rollers and the raceways, which can effectively disperse the load. Therefore, it has strong bearing performance and can withstand large radial loads and unidirectional axial loads. For example, in automobile transmissions, this bearing can stably bear the radial and axial forces generated by gear transmission, ensuring the efficient and reliable operation of the transmission.​

2. Good Rigidity and Accuracy Retention: Due to the line contact between the rollers and the raceways, the 30204 tapered roller bearing has higher rigidity compared with bearings with point contact. During operation, it can effectively suppress the deformation and vibration of the shaft and maintain high running accuracy. In the application of precision machine tool spindles, this bearing can ensure the precise cutting of tools and process high-precision parts.​

3. Adapting to High-Speed Operation Requirements: Although tapered roller bearings are mainly used to bear large loads, the 30204 model has been carefully optimized and can adapt to high-speed operation within a certain range. By reasonably selecting materials, optimizing the structural design, and adopting advanced manufacturing processes, the internal friction and heat generation of the bearing are reduced, ensuring stable operation at higher speeds, reducing wear and fatigue caused by high speeds, and prolonging the service life of the bearing.​

V. Application Fields​

1. Automobile Industry: In the automotive field, 30204 tapered roller bearings are widely used in front wheels, rear wheels, transmissions, differential pinion shafts and other parts. In the wheel parts, it bears the radial road force during vehicle driving and the axial force generated by steering and braking, ensuring the stable operation of the wheels; in the transmission and differential, it can cope with the complex loads caused by gear transmission, ensuring efficient and smooth power transmission.​

2. Machine Tool Field: Machine tool spindles have extremely high requirements for running accuracy and rigidity. The 30204 tapered roller bearing, with its good rigidity and accuracy retention, has become an ideal choice for machine tool spindles. During high-speed cutting, it can stably support the spindle, ensure the precise positioning of the tool, process high-precision parts, and meet the needs of the mechanical manufacturing industry for precision machining.​

3. Construction Machinery Field: Construction machinery such as cranes and excavators face complex and variable loads during work. The 30204 tapered roller bearing can bear the huge radial and axial loads generated by these equipment during work, ensure the stable operation of key components of the equipment, and adapt to the harsh working environment and high-intensity operation requirements of construction sites.