Agricultural bearings 1.type roller bear 2.bearing steel Gcr15 3.inner diameter15.883mm 4.outer diameter:40mm agricultural and disc harrow bearings can mainly be seen in aspects such as tractors, mowers, harvesters, cultivators, front loaders, trailers, baler pressers and silage cutters as well as hoes and ploughs. agricultural and disc harrow bearings are used in various forms of agricultural ...