Hardcore ER20SFR Double Sealed Ball Bearing With Extended Inner Ring Built Tough 52100 Steel Runs Silky Smooth Nylon Cage 1.25 Inch Bore And 72 mm Outside Diameter For Rock Solid Everyday Machine Work

Heavy Duty Double Sealed Ball Bearing Single Pack Extension Ring
✔️ 31.8 mm 1.25 inch Bore 72 mm 2.83 OD 52100 Steel Cage Unit

This single row radial bearing carries steady loads while spinning smooth up to five thousand revolutions. You drop this ready made unit into motors, conveyor tracks, and workshop tools that demand quiet operation. The long inner tube grips your drive shaft firmly with set screws so you skip extra location spacers.

✅ Through hardened 52100 grade steel resists deep wear under heavy pressure
✅ Low friction synthetic rubber lips trap factory grease inside tight
✅ Precision ground raceways slash vibration and cut down noise fast
✅ Straight center hole aligns dead center on standard cylindrical shafts

💡 What makes an extended inner ring sealed ball bearing so handy for workshop machines?
This rugged piece holds firm on straight shafts without needing extra stop collars.
- The 31.8 mm 1.25 inch inner hole slides right over standard drive rods.
- A 72 mm 2.835 inch outer shell fits cleanly into most standard housings.
- Tight rubber contact rings lock in factory grease away from abrasive dust.

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