2MM9110WIDUL Angular Contact Ball Bearing Super Precision P4S DUL

The 2MM9110WI DUL is a super-precision angular contact ball bearing set from the Timken/Fafnir MM series. This duplex universal arrangement includes two flush-ground bearings with 15° contact angle, 50mm bore, 80mm outside diameter, and maximum-capacity internal design. The set features P4S precision class with ABEC 7 dimensional tolerances and ABEC 9 running accuracy, factory-matched with light preload for universal mounting (back-to-back, face-to-face, or tandem).

Super-precision angular contact ball bearings are designed for machine tool spindles, precision grinding equipment, and high-accuracy rotating applications requiring exceptional rigidity and minimal runout. The maximum-capacity WI design optimizes load capacity for low to moderate speed operations where precision positioning and smooth operation are critical.