- The rollers in the NN type bearing are guided by the ribs of the inner ring. 
 
                    Unit of Measure
                    
               
        
            Technical Specifications
                                                                                Type | 
                                                                        N/A Cylindrical Roller Bearing | 
                                                                                Bore Type | 
                                                                        N/A Tapered | 
                                                                                Material | 
                                                                        N/A Hardened Alloy Steel | 
                                                                                Cage Material | 
                                                                        N/A High Strength, 2 piece, Machined Brass | 
                                                                                Limiting Speed - Oil | 
                                                                        N/A 1300 rpm | 
                                                                                Limiting Speed - Grease | 
                                                                        N/A 1100 rpm | 
                                                                                Taper | 
                                                                        N/A 1:12 | 
                                                                                Precision | 
                                                                        N/A ISO Class 0 | 
                                                                                Tolerance | 
                                                                        N/A ISO Class 0 (RBEC 1) | 
                                                                                Oil Hole | 
                                                                        N/A w/o Oil Hole | 
                                                                                Radial Internal Clearance | 
                                                                        N/A CN | 
                                                                                Static Load Rating | 
                                                                        N/A 730000 lbf3250000 N3250.00 kN | 
                                                                                Dynamic Load Rating | 
                                                                        N/A 286000 lbf1270000 N1270.00 kN | 
                                                                                Enclosure | 
                                                                        N/A Open | 
                                                                                Operating Temperature Range | 
                                                                        N/A -40 to 250 ºF-40 to 120 ºC | 
