SEW R127DRN225M4 Helical Inline Gearmotor
Brand: SEW-Eurodrive | Series: R-Series / RX-Series (Helical Inline)
The SEW R127DRN225M4 is a heavy-duty, ultra-robust inline helical gearmotor engineered for demanding heavy industrial power transmission tasks[cite: 24]. Delivering exceptional mechanical efficiency, outstanding load-bearing capacity, and high torque output, it is available in foot-mounted (R127/RX107) and flange-mounted (RF127/RXF107) configurations for heavy bulk material handling, mining conveyors, crushing drives, and heavy-duty industrial processing lines[cite: 24].
Technical Specifications
| Model / Part Number | R127DRN225M4[cite: 24] |
|---|---|
| Brand / Manufacturer | SEW-Eurodrive[cite: 24] |
| Gear Unit Type | R Series (Helical Gear Unit, Inline Output Shaft)[cite: 24] |
| Motor Type | DRN225M4 (AC Squirrel-Cage Motor, IE3 Premium)[cite: 24] |
| Rated Motor Power (kW) | 45.0 kW (Standard)[cite: 24] |
| Output Speed / Ratio | Customizable via gearbox options (Contact for ratio details)[cite: 24] |
| Mounting Position | Universal / Foot-mounted, B5/B14 Flange Mounted[cite: 24] |
Documentation & Resources
SEW R127 Series Modular Configuration Matrix
Full-range modular assembly guide for SEW-Eurodrive Size 127 multi-stage and Size 107 single-stage helical gearboxes[cite: 24]. 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 |
|---|---|---|---|
| R127 (Foot-Mounted Multi-Stage)[cite: 24] | Size 127[cite: 24] | DRN Series (IE3 Premium: 132M4 to 280M4 / 7.5 kW - 90.0 kW)[cite: 24] | /BE (Fail-Safe Disc Brake) |
| RF127 (B5 / B14 Flange Mounted)[cite: 24] | Size 127[cite: 24] | DRS Series (IE1 Standard Efficiency)[cite: 24] | /TF (PTC Thermistor Thermal Protection) |
| RX107 (Single-Stage Foot Mounted)[cite: 24] | Size 107 (RX Stage)[cite: 24] | DV Series (Legacy Retrofit Motors: DV132 to DV280)[cite: 24] | /TH (Thermostat Switch Control) |
| RXF107 (Single-Stage Flange Mounted)[cite: 24] | Size 107 (RX Stage)[cite: 24] | DFT / DFV Series (ATEX Explosion-Proof Executions)[cite: 24] | /RS (Mechanical Backstop / Anti-Runback) |
| R127 / RF127 (Servomotor Adaptations)[cite: 24] | Size 127[cite: 24] | CT / CV Series (Inverter-Duty Servo Drives)[cite: 24] | /V (Forced Cooling Fan Attachment) |
Legacy SEW Motor Replacement & IE3 DRN Upgrade Guide
Obsolete SEW motor ranges (DV132, DV160, DV180, DV200, DV225, DV250, DV280) installed on R127 gearboxes can be seamlessly replaced with current IE3 Premium Efficiency DRN motors[cite: 24]. 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 |
|---|---|---|---|---|
| DV132M4 / DV132ML4[cite: 24] | IE1 / IE2 Efficiency[cite: 24] | DRN132M4 IE3 Upgrade[cite: 24] | 7.5 kW - 9.2 kW[cite: 24] | Direct 1-to-1 flange & shaft match on R127 gearboxes. Lower energy loss. |
| DV160M4 / DV160L4[cite: 24] | IE1 / IE2 Efficiency[cite: 24] | DRN160M4 / DRN160L4 IE3 Upgrade[cite: 24] | 11.0 kW - 15.0 kW[cite: 24] | Identical mounting dimensions; direct drop-in replacement. |
| DV180M4 / DV180L4[cite: 24] | IE1 / IE2 Efficiency[cite: 24] | DRN180M4 / DRN180L4 IE3 Upgrade[cite: 24] | 18.5 kW - 22.0 kW[cite: 24] | Flange & shaft dimensions identical. Check terminal box position. |
| DV200L4[cite: 24] | IE1 / IE2 Efficiency[cite: 24] | DRN200L4 IE3 Upgrade[cite: 24] | 30.0 kW[cite: 24] | Identical shaft centerline height & mounting pattern. Standard R127 pairing[cite: 24]. |
| DV225S4 / DV225M4[cite: 24] | IE1 / IE2 Efficiency[cite: 24] | DRN225S4 / DRN225M4 IE3 Upgrade[cite: 24] | 37.0 kW - 45.0 kW[cite: 24] | B5/B14 adapter compatibility preserved. Standard R127 heavy drive unit[cite: 24]. |
| DV250M4 / DV280S4 / DV280M4[cite: 24] | IE1 / IE2 Efficiency[cite: 24] | DRN250M4 / DRN280S4 / DRN280M4 IE3 Upgrade[cite: 24] | 55.0 kW - 90.0 kW[cite: 24] | Maximum power capacity pairing for R127 series. Heavy drive drop-in unit[cite: 24]. |
Expert Selection & Retrofit Engineering Notes
We specialize in providing complete drive packages and technical replacement solutions for the entire SEW-Eurodrive R127 series[cite: 24]. Whether you require a foot-mounted unit (R127 / RX107)[cite: 24], B5/B14 flange output (RF127 / RXF107)[cite: 24], or precision servomotor coupling, all mechanical designs can be supplied pre-assembled with state-of-the-art IE3 DRN series motors (DRN132M4 to DRN280M4)[cite: 24].
When retrofitting an existing application featuring an obsolete DV132, DV160, DV180, DV200, DV225, DV250, or DV280 motor[cite: 24], 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.
When retrofitting an existing application featuring an obsolete DV132, DV160, DV180, DV200, DV225, DV250, or DV280 motor[cite: 24], 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
- R127 DRN132M4 (7.5 kW)[cite: 24]
- R127 DRN160M4 (11 kW)[cite: 24]
- R127 DRN160L4 (15 kW)[cite: 24]
- R127 DRN180M4 (18.5 kW)[cite: 24]
- R127 DRN180L4 (22 kW)[cite: 24]
- R127 DRN200L4 (30 kW)[cite: 24]
- R127 DRN225S4 (37 kW)[cite: 24]
- R127 DRN225M4 (45 kW)[cite: 24]
- R127 DRN250M4 (55 kW)[cite: 24]
- R127 DRN280S4 (75 kW)[cite: 24]
- R127 DRN280M4 (90 kW)[cite: 24]
- RF127 DRN200L4 (30 kW)[cite: 24]
- RF127 DRN225M4 (45 kW)[cite: 24]
- RF127 DRN280M4 (90 kW)[cite: 24]
- RX107 DRN180L4 (22 kW)[cite: 24]
- RX107 DRN225M4 (45 kW)[cite: 24]
- R127 DV180L4 (DV Replacement)[cite: 24]
- R127 DV200L4 (DV Replacement)[cite: 24]
- RF127 DV225M4 (DV Replacement)[cite: 24]
- RX107 DV225M4 (DV Replacement)[cite: 24]
