Designation
                
                With shiled :MR52B
	                
                
                Open type :MR52BZZ
	                
                
                With seal VV :-
	                
                
                With seal DD :-
	                
                
                Principal dimensions(mm)
                
                d :2
	                
                
                D :5
	                
                
                B :2
	                
                
                B1 :25
	                
                
                r(min) :0.1
	                
                
                Basic load ratings(N)
                
                Cr :187
	                
                
                Cor :58
	                
                
                Basic load ratings{kgf} 
                
                Cr :19
	                
                
                Cor :6
	                
                
                Speed ratings(rpm)  
                
                Grease
                
                ZZ :85000
	                
                
                D·D :-
	                
                
                Oil 
                
                Z :100000
	                
                
                Abutment and fillet dimensions (mm)
                
                da(min) :2.8
	                
                
                db(max) :2.7
	                
                
                Da(Max) :4.2
	                
                
                Db(min) :4.4
	                
                
                ra(max) :0.1
	                
                
                rb(max) :0.1
	                
                
                Weight(g) 
                
                Open type :0.16
	                
                
                With shiled :0.23