... to use, is the most common production, the most widely used kind of bearing.2.Product specification Nameslot car bearingsBrandNSKBearing No ... 622 kgsCr(KN)41.7Cor(KN)33.9Nominal speed(r/min)4600Limit speed(r/min)6100Row no.Single rowTypesopen,Z,ZZ,RS ... , high speed limit. 4.ApplicationDeep groove ball bearing can be used for transmission, instruments and meters, electric motor, electric appliance, ...