David Brown M0920 BM replacement cross-reference

Replacement referenceDirectional lookup

Existing / searched modelDavid BrownM0920 BM

Published target modelFalk / Rexnord09UCBN2Open target specs →

What the source establishesDimensional interchange

Falk/Rexnord Form 950-501 publishes 09UCBN2 in its base-mounted helical dimensional comparison for size 09. The guide states that several competitive helical designs are drop-in replacements but instructs users to verify motor speed, gear ratio, output RPM, mounting position and current catalog ratings. Availability of this historical configuration should also be confirmed.

Evidence meaning

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

David Brown M0920 BM and Falk / Rexnord 09UCBN2 are tied by the published source at Verify motor speed and installed ratio · Ultramite size 09.

Evidence boundary

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

Published target specifications3 model-level fields

Falk / Rexnord09UCBN2Ultramite UC

Full model record →

Representative output torque at closest 25:1 / 1750 rpm: 19700 lb-inSource ↗
Interchange basis: Falk Ultramite 950-501 dimensional comparisonSource ↗
Ultramite size: 09Source ↗

Other models in the same published row16

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.