Whiteside Bearing 3/4 in. OD x 1/4 in. ID is a high-quality industrial bearing designed to meet the same standards as the equipment on Whiteside's bearing mounted router bits. This versatile bearing can be used to replace worn-out bearings, interchange with existing ones to automatically adjust cutting depths, or add to bit shanks to enable bearing-guided template or pattern work. For proper installation when adding bearings to bit shanks, it is important to use the appropriate size lock collar, either LC14 or LC12. Each bearing is sold individually, providing flexibility for your woodworking needs. Manufactured by Whiteside Machine Company in Claremont, North Carolina, this bearing features an outer diameter of 3/4 inch and an inner diameter of 1/4 inch, ensuring precise fit and reliable performance. Model Number: B4