Machine Screw Bearing Blocks

Joyce/Dayton bearing mounts are sealed and greased at the factory. They are suited for high duty cycle conditions where frictional forces cause a thermal transfer of energy into the screw assembly. The resulting thermal migration will cause the screw to expand axially. Screw end machining and fit of the bearing support are designed to account for this expansion.

See the table below for dimensional details based on machine screw part numbers. Bearing blocks used in screw & nut assemblies may not be rated for the same static load as the screws or nuts with which they are used. Contact Joyce/Dayton to verify that bearing blocks are adequately sized for the required loads.

Standard bearing blocks are available for most screw diameters between 5/8 inch and 1 1/2 inch diameters. See the chart below for more details.

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