3 3V 300 TB

Exact Stock Taper Bushed Hi-Cap wedge sheave identity and published geometry from Martin's official catalog.

Section3VGrooves3Pitch diameter3"OD2.95"Taper bushing1210Official source ↗

Published catalog evidence

Exact manufacturer record

D-22

Catalog number: 3 3V 300 TB
Belt section: 3V
Groove count: 3
Pitch diameter: 3"
Outside diameter: 2.95"
Taper bushing: 1210
Published row: 3 3V 300 TB 3 2 .95 A-1 1210 1 .25 .9063 1 – 1 .8 4 3V 300 TB A-1 1210 1 .25 1 .3125 1 – 2 .1

Verification boundary

Do not infer interchange

Belt and groovesConfirm exact belt section, groove count, and matched-set requirements.

Bushing and shaftVerify taper-bushing number, finished bore, shaft, keyway, and installation.

GeometryCheck pitch diameter, OD, sheave width, alignment, guard clearance, and center distance.

Drive dutyConfirm RPM, horsepower, service factor, balance, environment, and current manufacturer limits.

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