Browning FB220 Flange Unit

The Browning FB220 Flange Unit is a flange-mounted ball bearing drive assembly designed for direct shaft mounting in light- to standard‑duty machinery such as conveyors and small equipment. The FB220 family covers multiple bore sizes and flange patterns, including FB220‑2 with a 7/16 in bore, a 1 in bore variant used in SEW‑FB220 configurations, and the 1‑1/4 in bore four‑bolt VF4B‑220 arrangement for heavier mounting. Two common flange styles appear in this family: two‑bolt and four‑bolt patterns, with locking options that include 120° set‑screw locking and BOA concentric locking to secure the shaft and minimize movement under load. In supported variants such as VF4B‑220, Browning specifies a cast iron housing with a non‑expansion bearing (fixed) arrangement and a single lip contact seal with a flinger seal to help resist contaminants. These units are designed for reliable, maintenance-friendly operation in standard‑duty industrial drives, delivering consistent shaft alignment and a compact footprint suitable for tight installation spaces.