Looking to replace SEW, Flender, Nord, or Bonfiglioli S Series?
Why consider an alternative?
30-50% cost savings compared to original brands
Weeks instead of months lead time
Direct drop-in replacement – no equipment modification
SEW S Series equivalent models:
S37, S47, S57, S67, S77, S87, S97 – directly replaceable
Drop-in replacement checklist:
| 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 (B5/B14) |
| Mounting position | M1-M6 must be identical |
What to send the supplier for fastest match:
Photo of the nameplate – model, ratio, serial number
Application description – what equipment it‘s on
Any issues with the current unit – helps identify upgrade needs


