Martin 8V · D-27
4 8V 1250 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
- 4 8V 1250 TB
- Belt section
- 8V
- Groove count
- 4
- Pitch diameter
- 12.5"
- Outside diameter
- 12.5"
- Taper bushing
- 4040
- Published row
- 4 8V 1250 TB 12 .5 12 .5 A-1 4040 4 – 4 .875 88 .0 5 8V 1250 TB A-1 4040 4 .1875 4 1 .8125 100 .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
8V · 4 grooves4 8V 1320 TB13.2" PD · bushing 40408V · 4 grooves4 8V 1400 TB14" PD · bushing 40408V · 4 grooves4 8V 1500 TB15" PD · bushing 40408V · 4 grooves4 8V 1600 TB16" PD · bushing 40408V · 4 grooves4 8V 1700 TB17" PD · bushing 40408V · 4 grooves4 8V 1800 TB18" PD · bushing 40408V · 4 grooves4 8V 1900 TB19" PD · bushing 40408V · 4 grooves4 8V 2000 TB20" PD · bushing 4545