• Highlight: This Ametek Lamb 116448 is a 5.7-inch two-stage bypass motor with peripheral discharge and a 120V rating — the configuration that fits the largest install base of US commercial canister and upright vacuum platforms.
• Best For: US-market vacuum repair professionals, commercial maintenance shops, and facility teams stocking the most common Ametek bypass motor sizes.
• Expert Note: Peripheral discharge routes exhaust around the motor circumference, which fits the standard 5.7-inch lower-housing pattern that most major commercial vacuum brands use. The bypass design is the right call for any dusty environment where motor longevity matters.
