GOOT bearings can be supplied in various types,such as open,with single or Double shields(Z or 2Z),and with seals(Rs or 2RS)Double-sealed(2RS)Double-shielded(ZZ)andbearings are supplied with grease.So,they can be used directly after being unpacked at temperature-40℃+150℃.Special grease volume and type can also be supplied.please refer to Lubricants and specifications p.16.