Single 1-3/4 in Set-Screw Lock Insert UC309-28, Heavy-Duty Sealed Ball Bearing for Shaft Mount with Wide Inner Ring, Fits Pillow Block and Linear Slide Unit Applications

Single 1-3/4 in wide set-screw lock bearing insert
✔️ Fits 1.75 in shaft, heavy-duty sealed ball bearing, set-screw lock

This single UC309-28 insert is a heavy-duty wide inner ring set-screw lock bearing used for shaft-mounted work, handy for pillow blocks, conveyor rolls, and linear slide units.

✅ 1.75 in bore for 1-3/4 in shafts
✅ Set-screw locking design for secure shaft mounting
✅ Sealed ball bearing for protection against debris
✅ Wide inner ring improves load handling and alignment
✅ Fits pillow block replacements and linear slide unit setups

💡 What is a set-screw locking bearing insert used for in shaft-mounted applications? A set-screw locking insert secures the bearing to the shaft to keep rotation smooth, maintain alignment, and transfer loads reliably. Use cases and benefits include: - Secures sealed ball bearing to shafts for reliable rotation and reduced slippage - Handy as a pillow block replacement and in linear slide unit setups - Heavy-duty wide inner ring design lowers maintenance and improves load handling