Martin 5V · D-6
3 5V 2120 E
Exact Stock QD Hi-Cap wedge sheave identity and geometry from Martin's official sheave catalog.
Published catalog evidence
Exact manufacturer record
- Catalog number
- 3 5V 2120 E
- Belt section
- 5V
- Number of grooves
- 3
- Pitch diameter
- 21.2"
- Outside diameter
- 21.2"
- QD bushing
- E
- Catalog page
- D-6
- Published row text
- 2 5V 2120 SF 21 .20 21 .20 C-3 SF 2 .9375 0 .25 0 .4375 2 0 .125 50 .0 3 5V 2120 E C-3 E 3 .5 0 .125 0 .75 2 .625 0 .125 68 .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
5V · 3 grooves3 5V 2360 E23.6" PD · QD E5V · 3 grooves3 5V 1870 E18.7" PD · QD E5V · 3 grooves3 5V 1600 E16" PD · QD E5V · 3 grooves3 5V 1500 E15" PD · QD E5V · 3 grooves3 5V 2800 E28" PD · QD E5V · 3 grooves3 5V 1400 E14" PD · QD E5V · 3 grooves3 5V 1320 E13.2" PD · QD E5V · 3 grooves3 5V 1250 E12.5" PD · QD E