ABOUT THE BEARINGS : Type: Needle Brand Name: LB Bore Size: 4 - 200 mm Outside Diameter: 8 - 500 mm Model Number: all needle roller bearings Precision Rating: ABEC-1,ABEC-3,ABEC-5,ABEC7 Seals Type: OPEN or As Customer's Idea Number of Row: Single Row Place of Origin: Shanghai China (Mainland) Shield: Open,Teflon Sealed,Rubber Seals,2 Metal Shield Tolerance codes: ABEC-1, ABEC-3, ABEC-5, ABEC-7 Vibration level codes: V4, V3, V2, V1 Internal clearance codes: C0,C2, C3, C4, C5 Material: AISI52100, AISI440C, AISI304, AISI316, Ceramic Retainer: Stainless Steel Lubrication: oil or grease Bore Size: from 4mm to 200mm Outside Diameter: from 8mm to 500mm Package: Tube & Box THE SPECIAFACATION OF THE PRODUCT: Packaging Detail: Ususally, every 10 sets bearing are packed into plastic tube or raped by rustproof paper and paced into carton box. Single package is available,that is,each set bearing is contained into plastic bag and then packed in small inner box. Industrial Packing: 100 pcs or 50 pcs in long plastic tubes. Delivery Detail: 10-15days .Needle roller bearings:Radial needle and retainer Drawn cup needle roller bearings(one or two direction) Needle roller clutch with pressed outer ring Entity bushed needle roller bearings Plane thrust needle bearing,Pin roller,Needles. needle cage bearing outer ring is thin steel plate precision metal forming, the structure of space is small, is a la