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Five bronze cylindrical sleeve bearings with 8 mm bore and 12 mm outside diameter

Bunting Bearings

Bunting Bearings CBM008012008 Bronze Sleeve Bearing 8 mm Bore 12 mm OD 8 mm Length PK5

SKU CH-GW34-QDK18

Bronze sleeve bearing with 8 mm bore, 12 mm OD and 8 mm length in a pack of five

  • Bronze construction resists wear with C93200 (SAE 660) alloy
  • Operates from -450 °F to 500 °F for extreme environments
  • Metric 8 mm bore fits standard 12 mm housings
  • ±0.12 mm length tolerance ensures precise alignment
  • Pack of five bearings supports multiple installations

Bunting Bronze Sleeve Bearing 8 mm Bore

This Bunting bronze sleeve bearing fits an 8 mm bore and measures 12 mm outside diameter by 8 mm length. It comes in a pack of five and suits machinery that needs a simple plain bearing. The material grade is C93200, also known as SAE 660 cast bronze.

Sustained load behaviour up to 500 Degrees F

Cast bronze handles continuous duty without the rapid wear seen in polymer bushings. The alloy tolerates temperatures from -450 Degrees F to 500 Degrees F, so thermal cycling does not degrade the bearing surface. Lubrication grooves are not present, so regular oiling or greasing is required for long life.

Press-fit installation and common issues

The bearing is pressed into a housing that matches the 12 mm outside diameter within the stated tolerance of +/- 0.12 mm. A misaligned press or undersized housing causes binding or premature wear. California Proposition 65 warnings apply because the bronze contains listed chemicals.

How it compares

Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 80% of the 693 comparable items (median $35.99).

Specifications

No published specifications for this item yet.

Questions about this item

Does the bronze material handle continuous high-temperature operation without excessive wear?

The C93200 cast bronze sleeve bearing is rated for a maximum temperature of 500 degrees F and a minimum of -450 degrees F, so it tolerates sustained heat cycles well.

What shaft diameter and tolerance must I already have for these 8 mm bore bearings to fit correctly?

They are designed for an 8 mm bore with a length tolerance of +/- 0.12 mm; ensure your shaft matches that metric size for proper clearance.

Will these metric bronze bearings work alongside older imperial shafting or housings in the same assembly?

The bearings use a metric system of measurement with a 12 mm outside diameter and 8 mm bore, so they are not directly interchangeable with imperial dimensions.

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