The Pacific Scientific BA Permanent Magnet DC (PMDC) Series are built tough and are ideal for rugged, quality construction and very stable operation. It uses low voltage with NEMA standards. The construction includes Class H armature insulation. It also features patented anti-cogging magnets for continuous low-speed operations. To ensure electrical and mechanical integrity, it uses a polyester-impregnated armature. It also has a rugged fused commutator and large sealed bearings for that extra layer of durability. You can use TEFC and TENV configurations with it. These are legacy motors, meaning, they have been used for decades. However, because of their reliability and low cost, they are still widely used today.