4B50SD
4-groove B profile. Cross-referenced across Browning, Maska, MasterDrive, TB Wood's, PowerDrive, and Martin.
PowerDrive4B50SD
Pricing not yet available.
We're building pricing coverage for sheaves. In the meantime, this cross-reference shows the equivalent part numbers across major brands so you can source the right pulley from any supplier.
Specifications
| Profile | B-section (classical) |
| Grooves | 4 |
Source:High confidenceHigh confidence — PowerDrive Sheaves Cross Reference (2014) · last checked yesterday · perfect interchange
Equivalents Across Brands
Always verify groove profile, pitch diameter, and bushing compatibility against your drive specification before ordering.
| Brand | Part Number | Tier | Status |
|---|---|---|---|
| PowerDrive | 4B50SD | — | Cross reference |
| MasterDrive | 4B50SD | — | Cross reference |
| TB Wood's | 504B | — | Cross reference |
| Browning | 4B50SD | — | Cross reference |
| Maska | 4B50 | — | Cross reference |