Heavy-duty bearing models primarily include single-row tapered roller bearings (e.g., 302 series, 322 series), double-row tapered roller bearings (e.g., 310/500X series), and certain self-aligning roller bearings, suitable for high-load applications such as automotive, mining, and metallurgy. Core models such as 30220, 32220, and 310/600X feature high rated loads and impact resistance.
Main heavy-duty bearing models and parameters
Single-row tapered roller bearings.
302 series: Taking 30220 as an example, it has an inner diameter of 100 mm, an outer diameter of 180 mm, a static load of 350 kN, and a dynamic load of 255 kN, suitable for automotive and mining equipment. Other common models include 30202-30240 (such as 30228, 30230, etc.), covering small to large sizes.
322 Series: For example, the 32220 bearing has an inner diameter of 100 mm, an outer diameter of 180 mm, a rated dynamic load of 340 kN, and a static load of 512 kN, suitable for heavy-duty applications such as planetary reducers.
Double-row/extra-large tapered roller bearings.
310 Series: For example, the 310/600X bearing has an inner diameter of 600 mm, an outer diameter of 870 mm, a static load capacity of 2020 kN, and a dynamic load capacity of 4438 kN, making it suitable for rolling mills and metallurgical equipment.
320 Series: e.g., 32060, inner diameter 300 mm, outer diameter | 180 | 350 | 255 | automotive, mining equipment |.
32220: 32060
100: 300
180: 460
512: 3850
340: 10200
Construction machinery, reducers: cranes, heavy-duty transport equipment
Selection considerations
Load capacity: Prioritise models with high static and dynamic load parameters, such as the 310 series or 320 series.
Speed Limit: Heavy-duty bearings typically have lower speeds when grease-lubricated (e.g., 310/900X at 95 r/min), so they must be matched to
Post time: Jun-18-2025