SEW S57DRN100L4 Helical-Worm Right-Angle Gearmotor
The SEW S57DRN100L4 is a reliable, medium-duty right-angle helical-worm gearmotor engineered for smooth power transmission, low noise operation, and outstanding mechanical durability[cite: 22]. Featuring an integrated primary helical gear stage combined with a precision worm gear wheel set, the S57 delivers significantly higher efficiency than standard worm gearboxes[cite: 22]. Available in versatile mounting configurations (foot, B5/B14 flange, solid shaft, hollow shaft with keyway, shrink disc, and TorqLOC® clamping system)[cite: 22], it is widely utilized across material handling conveyors, industrial agitators, food machinery, and automated assembly drives[cite: 22].
Technical Specifications
| Model / Part Number | S57DRN100L4[cite: 22] |
|---|---|
| Brand / Manufacturer | SEW-Eurodrive[cite: 22] |
| Gear Unit Type | S Series (Helical-Worm Gear Unit, Right-Angle Output)[cite: 22] |
| Motor Type | DRN100L4 (AC Squirrel-Cage Motor, IE3 Premium)[cite: 22] |
| Rated Motor Power (kW) | 3.0 kW (Standard)[cite: 22] |
| Output Speed / Ratio | Customizable via gearbox options (Contact for ratio details)[cite: 22] |
| Mounting & Shaft Form | Foot-mounted, Flange B5/B14, Solid Shaft, Hollow Shaft with Keyway/Shrink Disc/TorqLOC®[cite: 22] |
Documentation & Resources
SEW S57 Series Modular Configuration Matrix
Full-range modular assembly guide for SEW-Eurodrive Size 57 helical-worm gearboxes[cite: 22]. Review supported mechanical mountings, current IE1-IE4 motor pairings, and factory protection options:
| Gear Unit Mounting / Layout Design | Frame Size | Matched Motor Series & Powers | Optional Factory Accessories |
|---|---|---|---|
| S57 (Foot-Mounted Solid Shaft)[cite: 22] | Size 57[cite: 22] | DRN Series (IE3 Premium: 71MS4 to 132S4 / 0.37 kW - 5.5 kW)[cite: 22] | /BE (Fail-Safe Disc Brake) |
| SA57 (Hollow Shaft with Keyway)[cite: 22] | Size 57[cite: 22] | DRS Series (IE1 Standard Efficiency)[cite: 22] | /TF (PTC Thermistor Thermal Protection) |
| SF57 / SAF57 (B5 Flange Output)[cite: 22] | Size 57[cite: 22] | DT / DV Series (Legacy Retrofit Motors: DT71 to DV132)[cite: 22] | /TH (Thermostat Switch Control) |
| SAZ57 / SHZ57 (B14 Face Flange)[cite: 22] | Size 57[cite: 22] | DFT / DFV Series (ATEX Explosion-Proof Executions)[cite: 22] | /RS (Mechanical Backstop / Anti-Runback) |
| SH57 / ST57 (Shrink Disc / TorqLOC®)[cite: 22] | Size 57[cite: 22] | CT / CV Series (Inverter-Duty Servo Drives)[cite: 22] | /V (Forced Cooling Fan Attachment) |
Legacy SEW Motor Replacement & IE3 DRN Upgrade Guide
Obsolete SEW motor ranges (DT71, DT80, DT90, DV100, DV112, DV132) installed on S57 gearboxes can be seamlessly replaced with current IE3 Premium Efficiency DRN motors[cite: 22]. Refer to the cross-reference mapping below for 1-to-1 retrofitting:
| Legacy Motor Code (Obsolete) | Efficiency Level | Current IE3 Replacement Motor | Rated Power (kW) | Mechanical Compatibility & Retrofit Notes |
|---|---|---|---|---|
| DT71D4 / DT71C4[cite: 22] | IE1 / Standard Efficiency[cite: 22] | DRN71MS4 / DRN71M4 IE3 Upgrade[cite: 22] | 0.37 kW - 0.55 kW[cite: 22] | Direct 1-to-1 flange & shaft match on S57 gearboxes. Lower energy loss. |
| DT80K4 / DT80N4[cite: 22] | IE1 / Standard Efficiency[cite: 22] | DRN80MK4 / DRN80M4 IE3 Upgrade[cite: 22] | 0.55 kW - 0.75 kW[cite: 22] | Identical mounting dimensions; direct drop-in replacement. |
| DT90S4 / DT90L4[cite: 22] | IE1 / Standard Efficiency[cite: 22] | DRN90S4 / DRN90L4 IE3 Upgrade[cite: 22] | 1.1 kW - 1.5 kW[cite: 22] | Flange & shaft dimensions identical. Check terminal box position. |
| DV100M4 / DV100L4[cite: 22] | IE1 / IE2 Efficiency[cite: 22] | DRN100LS4 / DRN100L4 IE3 Upgrade[cite: 22] | 2.2 kW - 3.0 kW[cite: 22] | Identical shaft centerline height & mounting pattern. Standard S57 pairing[cite: 22]. |
| DV112M4 / DV132S4[cite: 22] | IE1 / IE2 Efficiency[cite: 22] | DRN112M4 / DRN132S4 IE3 Upgrade[cite: 22] | 4.0 kW - 5.5 kW[cite: 22] | Maximum power capacity pairing for S57 series. Drop-in replacement unit[cite: 22]. |
Expert Selection & Retrofit Engineering Notes
When retrofitting an existing application featuring an obsolete DT71, DT80, DT90, DV100, DV112, or DV132 motor[cite: 22], upgrading to an IE3 DRN motor ensures complete dimensional interchangeability while substantially reducing operating temperatures and energy costs. Simply send us your existing SEW serial number or nameplate code (including options like BE brake, TF thermistor, or RS backstop), and our engineering team will provide a 100% compliant replacement specification and quotation.
Core Benchmark Model Standard Configurations
- S57 DRN71M4 (0.55 kW)[cite: 22]
- S57 DRN80M4 (0.75 kW)[cite: 22]
- S57 DRN90S4 (1.1 kW)[cite: 22]
- S57 DRN90L4 (1.5 kW)[cite: 22]
- S57 DRN100LS4 (2.2 kW)[cite: 22]
- S57 DRN100L4 (3.0 kW)[cite: 22]
- S57 DRN112M4 (4.0 kW)[cite: 22]
- S57 DRN132S4 (5.5 kW)[cite: 22]
- SA57 DRN90L4 (1.5 kW)[cite: 22]
- SA57 DRN100L4 (3.0 kW)[cite: 22]
- SF57 DRN100L4 (3.0 kW)[cite: 22]
- SAF57 DRN100L4 (3.0 kW)[cite: 22]
- SAF57 DRN112M4 (4.0 kW)[cite: 22]
- SAZ57 DRN90L4 (1.5 kW)[cite: 22]
- SH57 DRN100L4 (3.0 kW)[cite: 22]
- ST57 DRN112M4 (4.0 kW)[cite: 22]
- S57 DT90L4 (DT Replacement)[cite: 22]
- SA57 DV100L4 (DV Replacement)[cite: 22]
- SAF57 DV100L4 (DV Replacement)[cite: 22]
- SAZ57 DT90L4 (DT Replacement)[cite: 22]
