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BMQ050 cross-reference: 200, 921, VF49, F721 | Replacement Intelligence

Manufacturer-published cross-reference

BMQ050

Superior Gearbox SMR cross-table row · Match installed ratio/application · AGMA unit size VarioDrive size 050

PublisherSuperior GearboxCheckedSep 21, 2026

Claim typePublished manufacturer cross-referenceRatioMatch installed ratio/applicationAGMA unit sizeVarioDrive size 050Open source table ↗

Models printed in this source row46

Publisher targetSuperior GearboxBMQ050

Published comparisonBaldor200

Published comparisonBaldor 900 Series921

Published comparisonBonfiglioliVF49

Published comparisonBoston Gear 700 SeriesF721

Published comparisonBoston Gear 700 SeriesHF721

Published comparisonDodge TigearQ200

Published comparisonDodge Tigear-220Q

Published comparisonDodge Tigear-220QH

Published comparisonElectra EL SeriesBMQ821

Published comparisonElectra EL SeriesHMQ821

Published comparisonElectra Original21MSC

Published comparisonGrove Gear IronManBMQ821

Published comparisonGrove Gear IronManHMQ821

Published comparisonGrove Gear OE StyleBMQ206

Published comparisonGrove Gear QuadroBMQ520

Published comparisonGrove Gear QuadroHMQ520

Published comparisonHampton MA SeriesB50

Published comparisonHampton MA SeriesK50

Published comparisonHampton MA Series

What the evidence supportsClaim scope

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.

This page does say

These model numbers appear together in the cited manufacturer-published cross-reference row.
Superior Gearbox identifies BMQ050 as the target model in that published row.
The source associates the row with Match installed ratio/application and AGMA unit size VarioDrive size 050.

This page does not say

Every competitor model listed beside each other is independently certified as pairwise interchangeable.
Every installed accessory, bushing, motor mount, backstop, shaft, or screw-conveyor component will transfer unchanged.
The cross-reference removes the need to verify application torque, mounting, environment, and configuration.

Before treating it as a drop-in replacementVerification checklist

Ratio & speedVerify the actual ratio and required output speed.

Bushing / boreConfirm the installed shaft diameter and the required tapered bushing or bore arrangement.

AccessoriesCheck torque arm, backstop, motor mount, belt guard, screw-conveyor flange and drive shaft individually.

Torque & serviceConfirm continuous/peak torque, service factor, starts, shock load and thermal duty.

EnvelopeVerify center height, housing clearance and all mounting dimensions against the drawing.

EnvironmentConfirm lubricant, seals, ambient temperature, washdown/corrosion and hazardous-area requirements.

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