8 5V 850 TB

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

Section5VGrooves8Pitch diameter8.5"OD8.5"Taper bushing3030Official source ↗

Published catalog evidence

Exact manufacturer record

D-26

Catalog number: 8 5V 850 TB
Belt section: 5V
Groove count: 8
Pitch diameter: 8.5"
Outside diameter: 8.5"
Taper bushing: 3030
Published row: 6 5V 850 TB 8 .5 8 .5 A–1 3020 3 .75 2 1 .6875 28 .0 8 5V 850 TB A–1 3030 3 1 3 1 .8125 39 .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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