Manufacturer functional interchange
Superior Gearbox BMQ050 appears in the same manufacturer-published cross-reference row as Hampton MA Series B50 at Match installed ratio/application · VarioDrive size 050.
Superior Gearbox publishes BMQ050 (VarioDrive size 050, motor input flange) as a competitor cross-reference target. Superior describes VarioDrive as functionally interchangeable with listed drives while requiring independent verification of ratings, dimensions, fit and application suitability.
The manufacturer describes the target family as functionally interchangeable with the listed competitor model or configuration.
Hampton MA Series B50 and Superior Gearbox BMQ050 are tied by the published source at Match installed ratio/application · VarioDrive size 050.
The source still requires ratings, dimensions, ratio, fit, and application conditions to be checked before ordering.