184 → F718 replacement

Replacement referenceDirectional lookup

Existing / searched modelHub City184Open source-model record →

Published target modelBoston GearF718Open target specs →

What the source establishesDimensional interchange

Boston Gear P-8565-BG publishes F718 as the 700 Series dimensional-interchange target for solid output shaft — nema c flange reducer (quill input) at 1.75 in center distance. The table establishes dimensional interchange; gear ratio and application rating must be matched separately.

Evidence meaning

The manufacturer publishes the two models in a dimensional-interchange table or equivalent dimensional comparison.

Hub City 184 and Boston Gear F718 are tied by the published source at Match installed ratio (5:1–100:1) · 1.75 in center distance.

Evidence boundary

Dimensional alignment does not by itself prove identical torque, thermal rating, service factor, ratio, accessories, or application suitability.

Published target specifications5 model-level fields

Boston GearF718Standard 700 Series

Full model record →

Center distance: 1.75 inSource ↗
Input / mounting style: NEMA C flange / quillSource ↗
Output shaft style: SolidSource ↗
Single-reduction ratio range: 5–100 :1Source ↗
Interchange basis: Boston Gear P-8565-BG dimensional interchange tableSource ↗

Other models in the same published row13

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.

Hub City 184 replacement