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Boston Gear F842B Replacement | Winsmith 412A | Replacement Intelligence

Manufacturer comparison guide

Boston Gear F842B replacement

Winsmith 412A appears in the same manufacturer-published cross-reference row as Boston Gear F842B at Match installed ratio/application · Winsmith HXI size 412A.

Published target412AWinsmithMatch installed ratio/application

Evidence publisherWinsmithEvidence typeComparison guideReviewedSep 21, 2026Open source ↗

Replacement referenceDirectional lookup

Existing / searched modelBoston GearF842B

Published target modelWinsmith412AOpen target specs →

What the source establishesComparison guide

Winsmith publishes HXI 412A in its 2025 interchange guide beside the listed competitor models. The guide distinguishes 100% interchangeable mounting from slightly different mounting; verify the source key, dimensions, ratio and application before ordering.

Evidence meaning

The manufacturer publishes these models together in an interchange/comparison guide.

Boston Gear F842B and Winsmith 412A are tied by the published source at Match installed ratio/application · Winsmith HXI size 412A.

Evidence boundary

The guide may include mounting or configuration differences; confirm the source key and exact dimensions before substitution.

Published target specifications3 model-level fields

Winsmith412AHXI Helical Inline

Full model record →

Published torque: 1550 lbf-inSource ↗
Interchange source: Winsmith 2025 Aluminum and Helical Interchange GuideSource ↗
Published size: HXI 412ASource ↗

Other models in the same published row4

BrowningCbN31Same Match installed ratio/application published row →Dodge QuantisILH38Same Match installed ratio/application published row →NORD DRIVESYSTEMSSK37Same Match installed ratio/application published row →SEW-EURODRIVER37Same Match installed ratio/application published row →

Replacement verification checklistBefore purchase

RatioConfirm nominal and actual ratio against required output speed.

Shaft / boreMeasure the driven shaft and verify bushing or bore configuration.

InputCheck high-speed shaft, motor frame, sheave and input interface.

MountingCompare center height, footprint, torque-arm geometry and housing clearances.

AccessoriesDo not assume existing backstops, motor mounts, belt guards or screw-conveyor hardware transfer.

DutyRecheck torque, service factor, shock, starts per hour, temperature and lubrication.

Open 412A specifications Full published row Field checklist Source document ↗