LDBS 75-8(LD-FOR HANGZHOU LINGDA CASTER CO., LTD. ; B-FOR FLAT PLATE CASTER; S-FOR THE HAYING BRAKE SET; 75-FOR THE DIAMETER OF THE WHEEL; 8-FOR THE SEVENTH TYPE OF THE LDBS 75-7) DIAMETER X WIDTH: 75X25MM LOAD CAPACITY: 80KG OVERALL HEIGHT: 100MM DEVENTRING: 35MM TOP PLATE SIZE: 75X65MM BOLT HOLE SPACING:57X47MM HOLE'S SIZE: 8.5MM