SEW S87DRN180M4 Helical-Worm Right-Angle Gearmotor
The SEW S87DRN180M4 is the largest, highest-capacity right-angle helical-worm gearmotor in SEW's S-series lineup[cite: 22]. Engineered for heavy industrial power transmission where low operating noise, high mechanical damping, and reliable right-angle output are paramount[cite: 22]. Featuring an optimized primary helical gear stage paired with a heavy-duty worm wheel drive, the S87 offers far superior mechanical efficiency and thermal capacity over conventional pure worm speed reducers[cite: 22]. Available in all standardized mounting options (foot-mounted S87, hollow shaft SA87, B5 flange SF87/SAF87, B14 flange SAZ87, shrink disc SH87, and TorqLOC® keyless clamping system ST87)[cite: 22], it is extensively deployed in heavy material handling conveyors, industrial mixers, crushing machinery, wastewater treatment drives, and bulk material processing lines[cite: 22].
Technical Specifications
| Model / Part Number | S87DRN180M4[cite: 22] |
|---|---|
| Brand / Manufacturer | SEW-Eurodrive[cite: 22] |
| Gear Unit Type | S Series (Helical-Worm Gear Unit, Right-Angle Output)[cite: 22] |
| Motor Type | DRN180M4 (AC Squirrel-Cage Motor, IE3 Premium)[cite: 22] |
| Rated Motor Power (kW) | 18.5 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 S87 Series Modular Configuration Matrix
Full-range modular assembly guide for SEW-Eurodrive Size 87 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 |
|---|---|---|---|
| S87 (Foot-Mounted Solid Shaft)[cite: 22] | Size 87[cite: 22] | DRN Series (IE3 Premium: 90S4 to 180L4 / 1.1 kW - 22.0 kW)[cite: 22] | /BE (Fail-Safe Disc Brake) |
| SA87 (Hollow Shaft with Keyway)[cite: 22] | Size 87[cite: 22] | DRS Series (IE1 Standard Efficiency)[cite: 22] | /TF (PTC Thermistor Thermal Protection) |
| SF87 / SAF87 (B5 Flange Output)[cite: 22] | Size 87[cite: 22] | DT / DV Series (Legacy Retrofit Motors: DT90 to DV180)[cite: 22] | /TH (Thermostat Switch Control) |
| SAZ87 / SHZ87 (B14 Face Flange)[cite: 22] | Size 87[cite: 22] | DFT / DFV Series (ATEX Explosion-Proof Executions)[cite: 22] | /RS (Mechanical Backstop / Anti-Runback) |
| SH87 / ST87 (Shrink Disc / TorqLOC®)[cite: 22] | Size 87[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 (DT90, DV100, DV112, DV132, DV160, DV180) installed on S87 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 |
|---|---|---|---|---|
| DT90S4 / DT90L4[cite: 22] | IE1 / Standard Efficiency[cite: 22] | DRN90S4 / DRN90L4 IE3 Upgrade[cite: 22] | 1.1 kW - 1.5 kW[cite: 22] | Direct 1-to-1 flange & shaft match on S87 gearboxes. Lower energy loss. |
| DV100M4 / DV100L4[cite: 22] | IE1 / IE2 Efficiency[cite: 22] | DRN100LS4 / DRN100L4 IE3 Upgrade[cite: 22] | 2.2 kW - 3.0 kW[cite: 22] | Identical mounting dimensions; direct drop-in replacement. |
| DV112M4 / DV132S4 / DV132M4[cite: 22] | IE1 / IE2 Efficiency[cite: 22] | DRN112M4 / DRN132S4 / DRN132M4 IE3 Upgrade[cite: 22] | 4.0 kW - 7.5 kW[cite: 22] | Flange & shaft dimensions identical. Check terminal box position. |
| DV160M4 / DV160L4[cite: 22] | IE1 / IE2 Efficiency[cite: 22] | DRN160M4 / DRN160L4 IE3 Upgrade[cite: 22] | 11.0 kW - 15.0 kW[cite: 22] | Identical shaft centerline height & mounting pattern. Standard S87 pairing[cite: 22]. |
| DV180M4 / DV180L4[cite: 22] | IE1 / IE2 Efficiency[cite: 22] | DRN180M4 / DRN180L4 IE3 Upgrade[cite: 22] | 18.5 kW - 22.0 kW[cite: 22] | Maximum power capacity pairing for S87 series. Heavy drive drop-in unit[cite: 22]. |
Expert Selection & Retrofit Engineering Notes
When retrofitting an existing application featuring an obsolete DT90, DV100, DV112, DV132, DV160, or DV180 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
- S87 DRN90L4 (1.5 kW)[cite: 22]
- S87 DRN100L4 (3.0 kW)[cite: 22]
- S87 DRN112M4 (4.0 kW)[cite: 22]
- S87 DRN132S4 (5.5 kW)[cite: 22]
- S87 DRN132M4 (7.5 kW)[cite: 22]
- S87 DRN160M4 (11 kW)[cite: 22]
- S87 DRN160L4 (15 kW)[cite: 22]
- S87 DRN180M4 (18.5 kW)[cite: 22]
- S87 DRN180L4 (22 kW)[cite: 22]
- SA87 DRN160M4 (11 kW)[cite: 22]
- SA87 DRN180M4 (18.5 kW)[cite: 22]
- SF87 DRN160M4 (11 kW)[cite: 22]
- SAF87 DRN160L4 (15 kW)[cite: 22]
- SAF87 DRN180L4 (22 kW)[cite: 22]
- SAZ87 DRN160M4 (11 kW)[cite: 22]
- SH87 DRN160M4 (11 kW)[cite: 22]
- ST87 DRN180M4 (18.5 kW)[cite: 22]
- SA87 DV160M4 (DV Replacement)[cite: 22]
- SAF87 DV180L4 (DV Replacement)[cite: 22]
- SH87 DV180M4 (DV Replacement)[cite: 22]
