... standard4 Low noise5 Bearing series:1200 Series, 1200K Series,1300 Series, 1300K Series,2200 Series, 2200k Series2300 Series, 2300K Series,Also, these bearing ... .8Company introduce:Self-aligning ball bearings are constructed with the inner ring and ball assembly contained within ... errors.Applications : widely used in mining machinery, power machinery, heavy machinery and textile machinery etc.Catalog ...