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R57 → 612A replacement

Manufacturer comparison guide

SEW-EURODRIVE R57 replacement

Winsmith 612A appears in the same manufacturer-published cross-reference row as SEW-EURODRIVE R57 at Match installed ratio/application · Winsmith HXI size 612A.

Published target612AWinsmithMatch installed ratio/application

Evidence publisherWinsmithEvidence typeComparison guideReviewedSep 21, 2026Open source ↗

Replacement referenceDirectional lookup

Existing / searched modelSEW-EURODRIVER57Open source-model record →

Published target modelWinsmith612AOpen target specs →

What the source establishesComparison guide

Winsmith publishes HXI 612A 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.

SEW-EURODRIVE R57 and Winsmith 612A are tied by the published source at Match installed ratio/application · Winsmith HXI size 612A.

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

Winsmith612AHXI Helical Inline

Full model record →

Published torque: 4690 lbf-inSource ↗
Interchange source: Winsmith 2025 Aluminum and Helical Interchange GuideSource ↗
Published size: HXI 612ASource ↗

Other models in the same published row4

Boston GearF862BSame Match installed ratio/application published row →BrowningCbN32Same Match installed ratio/application published row →Dodge QuantisILH58Same Match installed ratio/application published row →NORD DRIVESYSTEMSSK67Same 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 612A specifications Full published row Field checklist Source document ↗