... 5A~ 95ATemperatureup to 300°CHub MaterialAluminum, Steel, Sintered Bronze, Brass, Bearing, Many PlasticsBearing ChoicesBall, Needle, Sintered Bronze, PlasticWarranty6 months ~ 12 monthsSpecial ... to make sure the precision can match our customers' needs Ball bearing with PU coated, shelled & flat, 608, 626,609