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New black cast-iron rhombus flange bearing with two bolt holes and double-sealed alloy steel ball insert

Sealmaster

Sealmaster SFT-11 Flange Bearing 2-Bolt Ball 11/16" Bore collectible

SKU CH-TH7A-CD1WK

A cast-iron, two-bolt flange bearing with an 11/16 inch bore and double-sealed radial ball insert rated to 7,300 RPM

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorBlack
  • Double-sealed closure keeps contaminants out for longer service life
  • Fixed expansion design maintains precise shaft alignment under load
  • Cast-iron rhombus housing handles heavy radial loads in industrial settings
  • Alloy-steel radial ball insert supports speeds up to 7,300 RPM
  • Operates reliably from -20 °F to 220 °F in harsh environments

Industrial Flange Bearing

The Sealmaster SFT-11 is a two-bolt flange bearing with an 11/16 inch cylindrical bore. It uses a radial ball insert made from alloy steel and a cast iron rhombus housing. Double seals retain NLGI #2 equivalent lubricant across a temperature range of -20 to 220 degrees Fahrenheit.

Maintenance Teams and OEMs

This unit suits maintenance crews replacing worn mounted bearings on conveyors, fans or agricultural equipment where a fixed expansion type is specified. It is not for buyers who need an expansion bearing to accommodate shaft thermal growth or a higher maximum speed rating than 7,300 RPM.

Ready-to-Install Hardware

The bearing ships pre-lubricated and double sealed so it can be bolted directly onto a prepared mounting surface without additional grease or seal kits. The cast iron housing and alloy steel insert arrive assembled, eliminating separate component sourcing and reducing installation time.

Highlights

  • Double-sealed closure keeps contaminants out for longer service life
  • Fixed expansion design maintains precise shaft alignment under load
  • Cast-iron rhombus housing handles heavy radial loads in industrial settings
  • Alloy-steel radial ball insert supports speeds up to 7,300 RPM
  • Operates reliably from -20 °F to 220 °F in harsh environments

Specifications

BrandSEALMASTER
TypeBearings, V-belts & Power Transmission Equipment
ColorBlack

Questions about this item

What shaft diameter matches the 11/16 in bore of this Sealmaster SFT-11 bearing?

The bore is 11/16 in, so the shaft must measure exactly 11/16 in for a proper press fit.

Will the double-sealed, NLGI #2 lubricated insert tolerate the same temperature range as my existing cast-iron housings?

Yes, the bearing operates from -20 to 220 degrees F, matching typical cast-iron housing limits.

How can I confirm the 7,300 RPM rating is safe after I bolt the rhombus housing on 3 in centers?

Run the shaft up to speed and verify smooth rotation without vibration or temperature rise above 220 degrees F.

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