Helwig’s BPK Bearing Protection Kits typically reduces shaft voltage to less than 1 V at frequencies greater than 1 MHz. They use highly conductive silver graphite brushes instead of carbon brushes. They provide the lowest resistance path to ground. Their stock kits fit most motors and multiple shaft sizes. They are easy to install. Their red retaining clip helps determine the correct kit mounting height. The internal mount options avoid exposure to outside and contaminated environments.

Mounting hardware for the BPK kits is sold separately.