6 5V 1870 TB

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

Section5VGrooves6Pitch diameter18.7"OD18.7"Taper bushing4040Official source ↗

Published catalog evidence

Exact manufacturer record

D-26

Catalog number: 6 5V 1870 TB
Belt section: 5V
Groove count: 6
Pitch diameter: 18.7"
Outside diameter: 18.7"
Taper bushing: 4040
Published row: 6 5V 1870 TB 18 .7 18 .7 A–2 4040 4 – 4 .4375 97 .0 8 5V 1870 TB A–3 4040 4 .25 4 1 .5625 112 .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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