Manufacturer functional interchange
Superior Gearbox B150 appears in the same manufacturer-published cross-reference row as Sterling 2000RA 2600HR at Match installed ratio/application · VarioDrive size 150.
Superior Gearbox publishes B150 (VarioDrive size 150, input shaft) 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.
Sterling 2000RA 2600HR and Superior Gearbox B150 are tied by the published source at Match installed ratio/application · VarioDrive size 150.
The source still requires ratings, dimensions, ratio, fit, and application conditions to be checked before ordering.