Bear-N-Bronz Cast Bronze Plain Sleeve Bearings | Boston Gear

Bear-N-Bronz® is Boston Gear's general purpose, cast, solid bronze bearing material. It is a high grade, leaded tin bronze, having good hardness, strength, wear-resistance and exceptional anti-friction qualities. It is particularly suited for moderate to heavy loads at normal to relatively high speeds. All parts are rigidly inspected to assure freedom from porosity and conformance to dimensional tolerances.

In addition our standard product offering, the Bear-N-Bronz® material can be provided in different sizes, bar lengths (up to 105"), and with oil grooves.

California Proposition 65 Warning: The Bear-N-Bronze 660 contains lead, a chemical known to the state of California to cause cancer, birth defects or other reproductive harm.

Product Features

High-grade leaded tin-bronze offers added durability.
All-over machining permits:

Close tolerances
Wider housing tolerances

Bear-N-Bronz® bearings handle moderate to heavy loads efficiently.
Different styles offer versatility:

Plain cylindrical
Cored bars
Solid bars

The availability of additional sizes increases versatility even further.
The Bear-N-Bronz® bearings are available with oil grooves for additional flexibility.
The Bear-N-Bronz® Emergency Bearing Bank, providing refills in two sizes, minimizes downtime and costs.