Overview
The Rexnord 6863799 ZB2307S is a 3-7/16″ bore flange block bearing featuring a pilot ND design and black oxide finish. This mounted bearing unit combines precision engineering with robust construction, delivering dependable performance in conveyor systems, fans, motors, and other industrial machinery. The flange-mounted configuration allows for straightforward installation on flat surfaces while the integrated pilot bearing geometry ensures stable shaft alignment and load distribution.
Key Features
- 3-7/16″ bore (87.3 mm) sized for standard industrial applications
- Black oxide finished steel housing for corrosion resistance
- Pilot ND bearing design for enhanced load capacity and precision
- Flange-mounted configuration for surface-mounted installation
- Sealed bearing cartridge for protection against contamination
- Heavy-duty construction suitable for continuous-duty applications
Technical Specifications
Rexnord ZB2307S flange block bearings are engineered to ISO standards for spherical roller bearing housings. The unit features a ductile iron or steel casting housing with internal geometry optimized for radial and axial load support. Standard specifications include sealed cartridge design, metric bore sizing, and provisions for lubrication intervals consistent with industrial practice.
Typical Applications
Flange-mounted bearing blocks like the ZB2307S serve across a broad range of industrial sectors:
- Conveyor and material handling systems
- Industrial fan and blower assemblies
- Gearbox and reducer support bearings
- General machinery power transmission
- Pulp and paper mill equipment
- Food processing and packaging machinery
Compatibility & Replacements
Compatible With
- 3-7/16″ (87.3 mm) shaft sizes
- Rexnord PT Select spherical roller bearing systems
- Standard industrial motor and gearbox applications
- Conveyor belt drive assemblies
Replaces / Drop-In Replacement For
The Rexnord 6863799 / ZB2307S directly replaces previous-generation Link-Belt and Rexnord equivalent flange blocks in 3-7/16″ bore configurations. Verify compatibility with your system integrator before ordering to confirm bearing clearances and load ratings.
Works With
- Rexnord spherical roller bearing cartridges (ZB, ZF, ZM series)
- Standard ISO lubrication fittings and sealing provisions
- Conventional mechanical power transmission systems
- OEM equipment from major machinery manufacturers
