The SMR 4 25/1 shaft mount speed reducer is the slower-speed match to the 15:1 box size 4. Choose it when the conveyor, screw, or feeder needs more reduction and the driven shaft is up to 2-7/16 inches. It drops in on TXT 425 footprints and takes TXT-compatible accessories already in your crib.
Construction is the same heavy-duty SMR pattern: FCD45 cast iron housing, case-hardened gears precision ground to AGMA standards, extended gear centers, double-lip seals, and tapered roller bearings. The torque arm ships with the reducer.
Order the box size 4 tapered bushing kit separately for the shaft diameter. BG4 is the matching belt guard.
Send the nameplate photo if you are replacing a unit in the field. 503.624.7708 or ops@belttech.com. Visit www.belttech.com/shop to view our conveyance system product line.
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