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H724 cross-reference: 23SH, 1238WBQ, H224, 242 | Replacement Intelligence

Manufacturer-published cross-reference

H724

Boston Gear SMR cross-table row · Match installed ratio (5:1–100:1) · AGMA unit size 2.38 in center distance

PublisherBoston GearCheckedSep 21, 2026

Claim typePublished manufacturer cross-referenceRatioMatch installed ratio (5:1–100:1)AGMA unit size2.38 in center distanceOpen source table ↗

Models printed in this source row11

Publisher targetBoston GearH724

Published comparisonDodge Tigear-223SH

Published comparisonFalk Omnibox1238WBQ

Published comparisonGrove GearH224

Published comparisonHub City242

Published comparisonLeeson 600 SeriesH624

Published comparisonLeeson 800 SeriesH824

Published comparisonMorse Invader724S

Published comparisonMorse RaiderUH237

Published comparisonOhio GearSM2238

Published comparisonWinsmith924DSN

What the evidence supportsClaim scope

Boston Gear P-8565-BG publishes H724 as the 700 Series dimensional-interchange target for hollow output shaft — non-flanged reducer (basic unit) at 2.38 in center distance. The table establishes dimensional interchange; gear ratio and application rating must be matched separately.

This page does say

These model numbers appear together in the cited manufacturer-published cross-reference row.
Boston Gear identifies H724 as the target model in that published row.
The source associates the row with Match installed ratio (5:1–100:1) and AGMA unit size 2.38 in center distance.

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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