HC206 30mm Axle Bearing Insert with eccentric collarHC206 30mm Axle Insert with eccentric collar 30mm x 62mm x 38. 1mm One Ball Bearing 30mm mounted Bearing insert with eccentric collar HC206, the inner diameter is 30mm, the outer diameter is 62mm, the inner ring width is 38. 1mm and the outer ring width is 19mm, this is a popular size that could be used in many applications. Item: HC206 Bearing Type: Mounted Bearing insert with eccentric collar Bearing Size: 30mm x 62mm x 19mm 38. 1mm Dynamic Load