The NTN 7004UADG/GNP42 is a high-precision angular contact ball bearing designed for demanding applications, often used as a spindle bearing. It features a 20mm inner diameter, 42mm outer diameter, and 12mm width. This bearing has a 25-degree contact angle (ADG) and is universally matchable (U), allowing for flexible arrangement in sets. The GNP42 designation indicates a polyamide cage and P42 precision, which is equivalent to ISO Class 4, ensuring high rotational accuracy and performance. Its robust design makes it suitable for applications requiring high speed and rigidity.