... grease Our company mainly dealing in deep groove ball bearing,such as,60series,62,63,68,69series and so on. The best ... -contact seal on single single or both sides (L, 2L ),and with contact seal on single side or both sides (RS,2RS ... -20•C ~+ 110 •C .lf the conditions. Change,please connect with our engineers. filled with proper oil grease Good quality bearing seals