Whiteside Undersized Bearing .490 in. OD x 3/16 in. ID is a high-quality industrial bearing designed to match the equipment standards found on Whiteside’s bearing mounted router bits. This versatile bearing is for replacing worn-out bearings, adjusting cutting depths by interchanging with existing bearings, or adding to bit shanks to convert bits into bearing-guided tools for template or pattern work. When adding bearings to bit shanks, be sure to use the appropriate size lock collar, such as LC14 or LC12, to ensure proper fit and function. This particular bearing is undersized, making it i for use on re-sharpened bits, and it is sold individually. Manufactured by Whiteside Machine Company in Claremont, North Carolina, this bearing features an outer diameter of .490 inches and an inner diameter of 3/16 inches, providing precise performance for your woodworking needs. Model Number: B3U