• Totally enclosed non-ventilated (IP-40)
• Class "F" insulation, Class "B" rating
• External brush access for easy inspection and replacement
• Constant force brush springs for long life and quietness
• Pre-seated graphite or copper-graphite brushes for optimum performance and quiet operation
• Skewed armature for smooth low speed operation
• Oversized magnets resist demagnetization, stabilized to common strength for consistent performance
• High starting torque and self-braking
• Noise-tested ball bearings permanently lubricated
• Locked bearing minimizes endplay