S Series Gearbox Replacement Guide – SEW, Flender, Nord Alternatives
S Series Gearbox – Replacement & Alternative Guide
Looking to replace an SEW, Flender, or Nord S series gearbox? Here‘s what you need to know.
Why consider an alternative?
30-50% cost savings compared to original brands
Shorter lead times – weeks instead of months
Direct drop-in replacement – no equipment modification
What to check for drop-in replacement
| Check Item | Why It Matters |
|---|---|
| Mounting dimensions | Bolt holes, shaft diameter, center height must match |
| Ratio | Check nameplate for exact ratio |
| Output torque | Must meet or exceed original |
| Input flange | Must match your motor |
| Mounting position | M1-M6 must be identical |
SEW S Series equivalent models:
S37, S47, S57, S67, S77, S87, S97 – directly replaceable
Pro tip: Send us a photo of your old nameplate – we‘ll match the model exactly
