HC203 17mm Axle Bearing insert with eccentric CollarHC203 Bearing insert with eccentric Collar 17mm x 47mm x 31mm 17mm Bearing insert with eccentric Collar HC203, the inner diameter is 17mm, the outer diameter is 47mm, the inner ring width is 31mm and the outer ring width is 16mm, this is a popular size that could be used in many applications. Item: HC203 Bearing Type: Mounted Bearing Bearing Size: 17mm x 47mm x 16mm 31mm Inner Diameter: 17mm Outer Diameter: 47mm Inner Ring Width: 31mm Outer Ring