The AKM standard motor can be configured to achieve an IP67 rating by using the straight connectors (G option) and the shaft seal (01 option). The 0W (washdown) and 0F (food grade) motors all meet the IP67 rated whether they have straight or angled connectors.
The standard operating temperature of an AKM is based upon the most temperature sensitive device. This is typically the bearings . The standard bearings that are used on the AKM put the operating temperature at -20 to +120 deg.