Yma Bearing

Yma Bearing is a company based in China that lists bearings on Global Trade Plaza. Its catalog includes deep groove ball bearings and tapered roller bearings with a range of configurations and material options. The deep groove ball bearings are offered in open, shielded and sealed versions with precision classes from ABEC-1 to ABEC-7, vibration ranks V1 to V4, noise ranks Z1 to Z4 and internal clearance codes C0 to C5. Materials listed are bearing steel (9Cr18), stainless steel grades AISI440C, AISI304 and AISI316, and ceramics; retainers can be stainless steel, PTFE or nylon, with ring and ball hardness of 59–63 HRC. Tapered roller bearings are available in single-row, double-row and four-row designs in both inch and metric sizes. Four-row versions are noted for use in heavy machinery such as cold and hot rolling mills. Buyers can send an enquiry through Global Trade Plaza.