The characteristic of agricultural machinery and equipment is that the operating environment is relatively dirty, requiring high waterproof and dustproof performance for bearing products, and can adapt to extreme conditions (such as outdoor conditions with large temperature differences or environments with severe mud, water, and dust) and work normally. The sealing form of agricultural bearings mostly adopts double-layer or three lip seals, which can effectively isolate the entry of water and dust.

The inner ring can be selected as circular, square, or hexagonal according to the installation method, while the outer ring can be cylindrical or spherical.