Engineering Excellence in Flange Design

Two bolt flange ball bearings represent a significant engineering advancement in equipment mounting solutions. Unlike standard deep groove bearings that require complex mounting hardware, our flanged designs integrate the mounting points directly into the bearing structure, eliminating installation complexity and reducing assembly time by up to 40%. The two-bolt configuration provides ideal spacing for standard mounting holes on pump casings, motor frames, and industrial machinery chassis commonly found in manufacturing environments.

The flange design engineering demands specialized precision in both the bearing raceway and the mounting interface. Our manufacturing process begins with premium GCr15 chrome steel that undergoes vacuum heat treatment to achieve uniform HRC 58-62 hardness. The flange itself is precision-machined to ensure perpendicular alignment with the bearing bore, critical for preventing binding and premature wear. Advanced CNC equipment maintains bore concentricity within 0.005mm and flange flatness within 0.02mm—tolerances that prevent the shimming and adjustment problems that plague lower-quality flanged bearings.

The two-bolt spacing on our flanges is engineered to accommodate the most common industrial standards: both ISO metric spacing and NEMA spacing for North American equipment. This universal compatibility means our bearings can retrofit existing equipment from multiple manufacturers without custom fabrication. The flange bolt holes are pre-drilled with countersinks to prevent stress concentration and ensure even load distribution across both mounting points. Surface hardness treatment on the flange ensures resistance to corrosion from lubricant oxidation and environmental exposure.

Installation reliability depends critically on proper sealing and lubrication accessibility. Our two-bolt flanged bearings feature strategically positioned grease fittings and labyrinth seals that prevent contamination while permitting periodic re-lubrication without disassembly. The bearing is pre-loaded with premium ISO VG 100 grease suitable for -30°C to +100°C operation. In high-temperature applications, we offer synthetic PAO grease rated to +120°C. This attention to lubrication ensures that equipment operators can maintain bearing performance through simple periodic maintenance rather than replacement.