2MM9116WI DUL Ball P4S Super Precision

The 2MM9116WI DUL is a super-precision angular contact ball bearing set from Timken's MM series. This duplex universal arrangement includes two flush-ground bearings with 15° contact angle, 80mm bore, 125mm outside diameter, and light preload. The WI internal design provides maximum ball capacity optimized for low to moderate speed applications.

These bearings meet P4S precision standards (ABEC 7 dimensional tolerance with ABEC 9 running accuracy) and are supplied as open bearings without seals or shields. The duplex universal configuration allows flexible mounting in back-to-back (DB), face-to-face (DF), or tandem (DT) arrangements for machine tool spindles, precision gearboxes, and other applications requiring high accuracy and rigidity.