12 8V 2240 TB

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

Section8VGrooves12Pitch diameter22.4"OD22.4"Taper bushing5050Official source ↗

Published catalog evidence

Exact manufacturer record

D-28

Catalog number: 12 8V 2240 TB
Belt section: 8V
Groove count: 12
Pitch diameter: 22.4"
Outside diameter: 22.4"
Taper bushing: 5050
Published row: 10 8V 2240 TB 22 .4 22 .4 A-3 5050 5 2 .25 5 4 .375 312 .0 12 8V 2240 TB A-3 5050 5 2 .25 5 6 .625 337 .0

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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