Locking Collar Bearing Insert Bearing CSA206-20 1-1/4" Bore w/Locking Collar RA103RR2 KHR206-20 1-1/4" Round Inner Diameter Cylindrical OD 2.0472"/52mm OD Width 0.591"/15mm Overall Width 1.218"/31mm Interchange FHR206-20 RA103RR2 ALES206-104N SLE-120S  For a precise fit and wise selection. Our trusted accessories keep your tools running smoothly. Please confirm your model above before ordering. Double-check dimensions and photos for the right fit. Quality assurance ：Well-designed, excellent processing. Made of highly durable materials, rigorously This is a manufacturer substitution. Functional equivalent to prior parts.Product Description Well-designed, excellent processing.tested, compact & sturdy, longevous. Ultra Durable, Quality Replacement.Made from durable high quality material and well-tested by the manufacturermade from durable high quality material and well-tested by the manufacturer