The Nachi 7211CYDUP4 is a high-precision angular contact ball bearing designed for demanding applications. It features a 55mm inner diameter, 100mm outer diameter, and a width of 21mm. This bearing is part of a duplex pair, offering a 15-degree contact angle and a polyamide resin cage. With an ABEC-7 (P4 quality) precision rating, it is suitable for high-speed operations, reaching up to 9500 rpm with grease lubrication. The dynamic load capacity is 86900 N, and it can operate at temperatures up to 120°C (248°F). This bearing is ideal for applications requiring both radial and axial load support.