Designation
                
                With shiled :686A
	                
                
                Open type :686AZZ
	                
                
                With seal VV :686AVV
	                
                
                With seal DD :686ADD
	                
                
                Principal dimensions(mm)
                
                d :6
	                
                
                D :13
	                
                
                B :3.5
	                
                
                B1 :5
	                
                
                r(min) :0.15
	                
                
                Basic load ratings(N)
                
                Cr :1080
	                
                
                Cor :440
	                
                
                Basic load ratings{kgf} 
                
                Cr :110
	                
                
                Cor :45
	                
                
                Speed ratings(rpm)  
                
                Grease
                
                ZZ :40000
	                
                
                D·D :38000
	                
                
                Oil 
                
                Z :50000
	                
                
                Abutment and fillet dimensions (mm)
                
                da(min) :7.2
	                
                
                db(max) :7.4
	                
                
                Da(Max) :11.8
	                
                
                Db(min) :11.7
	                
                
                ra(max) :0.15
	                
                
                rb(max) :0.15
	                
                
                Weight(g) 
                
                Open type :1.91
	                
                
                With shiled :2.69