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Boston Gear 800 Series In-Line Helical

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Boston Gear · in-line helical gear drive

800 Series In-Line Helical

Boston Gear 800 Series in-line helical gear drives with manufacturer-published interchange tables for four mounting/input configurations.

Family data checkedSep 21, 2026Exact model pages0Official family source ↗

Verified family dataUse for screening, not final interchange approval

Published Boston sizes: 830, 840, 860, 870
Configurations: foot/flange × C-face/projecting input
Interchange brands: SEW, Dodge Quantis, Falk, David Brown, Flender, Sumitomo, STOBER, NORD
Claim scope: functionally interchangeable guide; verify ratings and dimensions

Exact model records0

Family verified; exact model rows are still being loaded.

Use the official family source above to identify the complete configuration. Do not infer a replacement from family name or housing size alone.

Model / type designationRatio or output rpmMounting positionShaft / boreMotor frame or adapterTorque / service duty

Replacement screeningSix checks before interchange

RatioMatch required output speed under the actual input speed.

TorqueRequired continuous and peak torque must stay within the selected unit rating.

GeometryVerify shaft centerline, footprint, flange, bore/shaft diameter, key and output side.

MountingConfirm position, torque arm, foot/flange arrangement, and lubrication requirements.

Motor interfaceConfirm IEC/NEMA frame, adapter, input shaft, brake and encoder configuration.

EnvironmentCheck washdown, food-grade, temperature, ingress, corrosion and hazardous-area requirements.

Verified sourcing channels for Boston Gear1

GraingerGrainger lists current Boston Gear reducer configurations with model-level dimensional and performance fields.