NU 311 single-row cylindrical roller bearing 1..Sizes:Inner Diameter:55mm Outer Diameter:120mm Width:29mm 2.Structure Type:Outer ring has double flanges, inner ring has no flanges 3.Material: Gcr15/Bearing steel 4..Accuracy:P0/P5 5.Cage:Pressed steel 6.Primary Application Range：Large speed reducers, mining machinery, crushers 7.Delivery time: 7 working days 8.Customization: OEM service 9.Samples: Sample service available https://www.atlycbearing.com/nu/nu-311-single-row-cylindrical-roller-bearing