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Three cylindrical bronze bearings with smooth matte finish

Bunting Bearings

Bunting Bearings CB121808 Bronze Sleeve Bearing 3/4 in Bore 1 in Length Pack of 3

SKU CH-ARTG-SMY23

Bronze sleeve bearing with 3/4 inch bore and 1 inch length, supplied in packs of three

  • Bronze construction resists wear with C93200 alloy
  • Wide temperature range from -450 to 500 °F
  • Precise 0.005 in length tolerance ensures fit
  • Pack of three simplifies maintenance stocking
  • Prop 65 warning noted for California compliance

Bronze Sleeve Bearings for Shaft Support

These Bunting Bearings CB121808 sleeve bearings provide low-friction support for 3/4-inch shafts. Each pack contains three cast bronze units measuring 1 1/8 inches outside diameter and 1 inch overall length. The C93200 (SAE 660) material suits general-purpose power transmission applications.

Suits Maintenance and Light Industrial Builds

The bearings suit mechanics and machine shops needing inch-dimension plain bearings for moderate loads and temperatures. They are not for applications requiring flanged mounting, self-aligning capability, or sealed lubrication systems.

Operating Range and Dimensional Headroom

Rated from -450 to 500 degrees Fahrenheit, the bronze handles wide thermal cycles without lubricant breakdown. Length tolerance of +/- 0.005 inch ensures consistent fit. The solid bronze wall resists wear until the bearing material itself is exhausted.

Highlights

  • Bronze construction resists wear with C93200 alloy
  • Wide temperature range from -450 to 500 °F
  • Precise 0.005 in length tolerance ensures fit
  • Pack of three simplifies maintenance stocking
  • Prop 65 warning noted for California compliance

Specifications

No published specifications for this item yet.

Questions about this item

What shaft diameter matches the 3/4 in bore on the CB121808 sleeve bearing?

The bearing is machined for a 3/4 in shaft; the bore tolerance is held to +/- 0.005 in so the shaft must be sized to that same class for proper fit.

Will the C93200 bronze material withstand the same 500 Degrees F limit as my existing steel bushings?

Yes, the cast bronze grade C93200 (SAE 660) is rated for continuous operation up to 500 Degrees F and down to -450 Degrees F, matching or exceeding typical steel bushing ranges.

How can I verify the bearings are seated correctly after pressing them into the housing?

Measure the installed bore with a plug gauge; it should read 3/4 in within the +/- 0.005 in tolerance, and the bearing face should sit flush with the housing shoulder.

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