High Performance 1-5/16 Inch Bore Three Bolt Flange Bearing Featuring Tough Cast Iron Housing and Grease Zerk for Easy Maintenance Includes Narrow Inner Ring Two Set Screws SBTRD207-21G FHSF3X207-21G VF3S-121

Single Cast Iron Three Bolt Flange Bearing Unit For Shafts
✔️ Three bolt mount 1-5/16 bore shaft with grease fitting.

This sealed ball bearing locks firmly to machine frames with three solid studs. You use it to track drive shafts in conveyor systems fan assemblies and agricultural gear. The narrow inner ring holds position tight while you run heavier loads.

✅ Cast iron shell takes shock stress from sudden torque jumps
✅ Grease zerk feeds fresh lube straight into the races
✅ 1-5/16 bore diameter fits standard steel rods easily
✅ Mounting holes span 3.41 in. (86.61 mm) for direct factory swaps

💡 What makes a cast iron three bolt flange bearing handy for industrial drive alignment?
You get steady tracking without flexing your equipment frame later.

- Steel balls roll smooth inside the rugged housing to cut friction down
- Straight bolt pattern matches common factory holes so swap jobs stay quick
- Simple service routine clears out old buildup without tearing gear apart

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