Martin 3V · D-3
1 3V 1900 SK
Exact Stock QD Hi-Cap wedge sheave identity and geometry from Martin's official sheave catalog.
Published catalog evidence
Exact manufacturer record
- Catalog number
- 1 3V 1900 SK
- Belt section
- 3V
- Number of grooves
- 1
- Pitch diameter
- 19"
- Outside diameter
- 19"
- QD bushing
- SK
- Catalog page
- D-3
- Published row text
- 1 3V 1900 SK 19 19 C-3 SK 2 .625 0 .6875 – 1 .875 – 17 .0 2 3V 1900 SK C-3 SK 2 .625 0 .4375 0 .25 1 .875 0 .4063 25 .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
3V · 1 groove1 3V 1400 SK14" PD · QD SK3V · 1 groove1 3V 1060 SDS10.6" PD · QD SDS3V · 1 groove1 3V 800 SDS8" PD · QD SDS3V · 1 groove1 3V 690 SH6.9" PD · QD SH3V · 1 groove1 3V 650 SH6.5" PD · QD SH3V · 1 groove1 3V 600 SH6" PD · QD SH3V · 1 groove1 3V 560 SH5.6" PD · QD SH3V · 1 groove1 3V 530 SH5.3" PD · QD SH