https://www.china.cn/product-detail/Heavy-Duty-Slewing-Ring-Bearings-132_62170831217.html?spm=a2747.manage.0.0.3c5171d28zou1kAt present, our company often provides four-point ball bearing with inner teeth and double row ball bearing with different diameters. Generally, we can provide CCS, ABS, DNV and other classification societies certification. The other is the maintenance and replacement of slewing bearings for cranes on board ships. The commonly repaired and replaced models are 013.50.2877 (figure number: ASB-A0057) 023.60.2890 (figure number: 12-MNR1394.87/53), 013.50.2875 (figure number: 62-MNR2850.87/53). This series of bearings is one of our main competitive products.