The NSK 7015CTRSULP3 is a high-precision single row angular contact ball bearing, specifically designed for spindle applications requiring high rotational accuracy and speed. This bearing features a 75 mm bore diameter, 115 mm outer diameter, and 20 mm width. It has a 15-degree contact angle (C) and is of P3 precision class, indicating very high accuracy. The 'TR' suffix denotes a synthetic resin cage, while 'SU' signifies universal matching, allowing for arbitrary arrangement in duplex or multiple sets. The 'L' indicates light preload. This bearing is ideal for machine tool spindles and other high-speed, high-precision rotating machinery.