Sheave assembly, typically 14", 2G, B-section, counter-clockwise (CCW) rotation.
To help you better, is this part related to a repair you are performing on a Quincy Compressor ?
If this is not the context you were looking for, it may refer to a specific regulatory document or scientific sample ID in a niche field. This technical document lists the 2919X sheave assembly,
This technical document lists the 2919X sheave assembly, which is part of the compressor's drive system, designed for high-pressure rated compressors. Key Information for 2919X:
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For high pressure rated compressors. 3. 1. 2919X. sheave assembly. 3.1. 1. 2915R. sheave, compressor, 14", 2G, B sect, ccw (N.S.S. engineservicesupply.com Quincy QR-25® Series Model 310
The assembly often includes specific socket head screws (124239-001) and square nuts (124372-L02). sheave assembly. 3.1. 1.
Based on your request, "2919x" most commonly refers to a specific part (part number 2919X) used in industrial air compressors, specifically in the Quincy QR-25 Series Model 310 . Helpful Resource regarding "2919x":