Upgrade your machinery with this set of four 1621-ZZ Shielded Radial Ball Bearings. Featuring a 1/2" inner diameter, 1-3/8" outer diameter, and 7/16" width, these durable bearings ensure smooth, reliable operation. Perfect for various applications, they provide excellent protection against dust and debris with their shielded design. Enhance performance and longevity with these high-quality bearings today! This is an aftermarket replacement. Compatibility may vary depending on the machine's serial number.
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