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Rubber-mounted ball bearing with eccentric collar, half-inch bore

Dayton

Dayton 3FDE7 Rubber Mounted Ball Bearing 1/2 in Bore

SKU CH-FJJK-4MC48

Rubber-mounted radial ball bearing with a 1/2 in bore, double-sealed alloy-steel insert and eccentric-collar locking for HVAC use

  • Rubber housing dampens vibration in HVAC equipment
  • 1/2 in bore fits standard shaft sizes directly
  • Double-sealed design keeps contaminants out of bearing
  • Operates reliably from -20 °F to 220 °F
  • Grade 52100 alloy steel resists wear under load

Application and Fit

The Dayton 3FDE7 is a rubber-mounted cartridge bearing unit with a half-inch bore for inch-series shafts. It suits HVAC equipment and general machinery where vibration isolation and simple mounting are required. The eccentric collar locks the inner race to the shaft without a setscrew.

Thermals, Noise and Power Draw

The unit operates from minus 20 to 220 degrees Fahrenheit with NLGI #2 equivalent grease sealed behind double contact seals. Rubber housing material damps vibration and reduces transmitted noise. Alloy steel 52100 rolling elements and a single row of balls keep running friction low under normal radial loads.

Upgrade Path and Value

This bearing replaces worn or noisy pressed-steel pillow blocks that transmit vibration to the frame. The jump is worth it when alignment is imperfect or when the application demands quieter operation and easier shaft locking. It does not serve buyers who need a high-temperature insert beyond 220 degrees or a larger bore size.

Highlights

  • Rubber housing dampens vibration in HVAC equipment
  • 1/2 in bore fits standard shaft sizes directly
  • Double-sealed design keeps contaminants out of bearing
  • Operates reliably from -20 °F to 220 °F
  • Grade 52100 alloy steel resists wear under load

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 1/2 in bore bearing onto the shaft and which step is often missed?

Slide the bearing onto the shaft, then tighten the eccentric collar in the direction of rotation and secure the set screw; the step often missed is locking the collar before the set screw.

What maintenance will the double-sealed cartridge bearing with NLGI #2 equivalent lubricant need later?

The bearing is factory-lubricated and double-sealed for life; no re-lubrication is required unless contamination or seal damage occurs.

At what temperature limit does the rubber housing reach its maximum under sustained use?

The rubber housing is rated to a maximum operating temperature of 220 degrees F; sustained operation above this limit will degrade the housing first.

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