Decode H/B nomenclature
Type code segments such as B3SH11A16 are translated into gear arrangement, stage count, shaft form, mounting, size, and ratio.
Heavy industrial replacement review for Flender H-series parallel shaft and B-series bevel-helical gear units used in mining, cement, ports, water treatment, and bulk material handling.
For maintenance and procurement teams facing long OEM lead times, high repair cost, or urgent shutdown risk on heavy-duty gear units.
| Family | Common Examples | Equivalent Path | Review Notes |
|---|---|---|---|
| H Series Parallel Shaft Gear Units | H1SH, H2SH, H3SH, H4SH horizontal and vertical layouts | H-Heavy parallel shaft replacement | Validate center distance, shaft height, oil volume, bearing load, fan cooling, and foundation footprint. |
| B Series Bevel-Helical Gear Units | B2SH, B3SH, B3HH, B4SH right-angle layouts | B-Heavy bevel-helical replacement | Confirm bevel stage orientation, solid/hollow output, nominal ratio, thermal rating, and service factor. |
| FZG / Large Industrial Drives | Project-specific reducer assemblies and legacy nameplates | Drawing-led engineered replacement | Use site photos and foundation drawings when the original model code is incomplete. |
Replacement projects are screened in a fixed order so the quote does not hide mechanical, thermal, or validation risk.
Type code segments such as B3SH11A16 are translated into gear arrangement, stage count, shaft form, mounting, size, and ratio.
Heavy gear units fail as replacements when shaft height, center distance, or base holes are off. These are reviewed before performance claims.
Continuous-duty industrial drives are screened for oil capacity, cooling path, ambient heat, and service factor before final model selection.
Often yes, but we need site photos, critical dimensions, and application data to rebuild the missing specification safely.
No. Heavy industrial replacements must also match shaft geometry, foundation, cooling, bearing load, oil volume, and service factor.
Inquiry Email
Please attach 2D/3D CAD drawings, target torque/speed, and quantity.