Designation
                
                With shiled :627
	                
                
                Open type :627ZZ
	                
                
                With seal VV :627VV
	                
                
                With seal DD :627DD
	                
                
                Principal dimensions(mm)
                
                d :7
	                
                
                D :22
	                
                
                B :7
	                
                
                B1 :7
	                
                
                r(min) :0.3
	                
                
                Basic load ratings(N)
                
                Cr :3300
	                
                
                Cor :1370
	                
                
                Basic load ratings{kgf} 
                
                Cr :335
	                
                
                Cor :140
	                
                
                Speed ratings(rpm)  
                
                Grease
                
                ZZ :30000
	                
                
                D·D :28000
	                
                
                Oil 
                
                Z :36000
	                
                
                Abutment and fillet dimensions (mm)
                
                da(min) :9
	                
                
                db(max) :10.5
	                
                
                Da(Max) :20
	                
                
                Db(min) :19
	                
                
                ra(max) :0.3
	                
                
                rb(max) :0.3
	                
                
                Weight(g) 
                
                Open type :12.7
	                
                
                With shiled :12.9