Shanghai QueLong industry CO., LTD., professionally sales R4 bearing, R4 bearing information: model R4 inner diameter: 6.3500 outside diameter: 15.8750 thickness: 4.9780 brands: NSK bearing series: linear motion bearings, want to know more about R4 bearing information, can undertake online consulting or dial the hotline, we will serve for you in detail. R4 bearing using range is very wide, R4 bearing is mainly used in engineering machinery, machine tools, steam car, metallurgy, mining, petroleum, machinery, electric power, railway and other industries, the company sales R4 bearing price reasonable, quality assurance, all aspects of the service, do everything to meet customer demand.