Martin 8V · D-11
12 8V 7100 W
Exact Stock QD Hi-Cap wedge sheave identity and geometry from Martin's official sheave catalog.
Published catalog evidence
Exact manufacturer record
- Catalog number
- 12 8V 7100 W
- Belt section
- 8V
- Number of grooves
- 12
- Pitch diameter
- 71"
- Outside diameter
- 71"
- QD bushing
- W
- Catalog page
- D-11
- Published row text
- 10 8V 7100 W 71 71 A-3 W 8 .5 0 .625 2 .875 11 .375 – 1842 .0 12 8V 7100 W A-3 W 8 .5 0 .625 2 .875 11 .375 2 .25 2002 .0
Verification boundary
What still needs to match
Belt and groovesConfirm the exact 3V, 5V, or 8V belt section, groove count, belt construction, and matched-set requirements.
Bushing and shaftVerify the QD bushing size, finished bore, shaft diameter, key/keyway, bushing orientation, and installation torque.
GeometryConfirm pitch diameter, outside diameter, sheave width, hub projection, guard clearance, and center-distance constraints.
Drive dutyCheck motor speed, sheave RPM, horsepower, service factor, belt speed, alignment, balance, environmental limits, and current manufacturer ratings.
Related catalog sheaves
Same section and groove count
8V · 12 grooves12 8V 6300 W63" PD · QD W8V · 12 grooves12 8V 5300 W53" PD · QD W8V · 12 grooves12 8V 4450 P44.5" PD · QD P8V · 12 grooves12 8V 4000 P40" PD · QD P8V · 12 grooves12 8V 3550 P35.5" PD · QD P8V · 12 grooves12 8V 3000 P30" PD · QD P8V · 12 grooves12 8V 2480 N24.8" PD · QD N8V · 12 grooves12 8V 2240 N22.4" PD · QD N