HC206 30mm Axle Bearing Insert - eccentric collarHC206 30mm Axle Insert with eccentric collar 30mm x 62mm x 38. 1mm 1 Ball Bearing 30mm mounted Bearing insert with eccentric collar HC206, measures an inner diameter of 30mm, the outer diameter is 62mm, the inner ring width is 38. 1mm and the outer ring width is 19mm, a standard bearing size commonly used in a variety of industrial and commercial applications. HC206 Bearing Mounted Bearing insert with eccentric collar Bearing Size: 30mm x 62mm x 19mm