JL Bearing offers over 7 types of bearings including: spherical roller (21000,22000,23000,24000,29000 Series) , tapered roller(30000 series and Inch Size. ) , thrust Bearings. (50000series) ,  low-noise deep groove ball bearing(mostly 6000 series) , cylindrical roller bearing with double row and four row, and nonstandard bearings according to special technical requirements. The material we mainly using includes Chrome Steel GCR15, SIMN steel and high Carbon Steel and also could do as per your preference. Our production and service are organized strictly according to ISO9001:2000 Quality Management Systems. JL is the registered trademark. In addition, we are good at the extra-large sizes. And our bearing's inner ring is from 100to 1500MM.