Martin 3V · D-21
1 3V 1900 TB
Exact Stock Taper Bushed Hi-Cap wedge sheave identity and published geometry from Martin's official catalog.
Published catalog evidence
Exact manufacturer record
- Catalog number
- 1 3V 1900 TB
- Belt section
- 3V
- Groove count
- 1
- Pitch diameter
- 19"
- Outside diameter
- 19"
- Taper bushing
- 3020
- Published row
- 1 3V 1900 TB* 19 19 B-3 3020 3 – 2 1 .1875 27 .0 2 3V 1900 TB B-3 3020 3 – 2 0 .65625 32 .0
Verification boundary
What still needs to match
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.
Related catalog sheaves
Same section and groove count
3V · 1 groove1 3V 1400 TB14" PD · bushing 25173V · 1 groove1 3V 1060 TB10.6" PD · bushing 25173V · 1 groove1 3V 800 TB8" PD · bushing 25173V · 1 groove1 3V 690 TB6.9" PD · bushing 16103V · 1 groove1 3V 650 TB6.5" PD · bushing 16103V · 1 groove1 3V 600 TB6" PD · bushing 16103V · 1 groove1 3V 560 TB5.6" PD · bushing 16103V · 1 groove1 3V 530 TB5.3" PD · bushing 1610