SEW KA37DRN80M4 Helical-Bevel Gearmotor
Brand: SEW-Eurodrive | Series: KA-Series (Hollow Shaft)
The SEW KA37DRN80M4 is a compact industrial helical-bevel gearmotor featuring a hollow shaft design[cite: 13]. Engineered for high mechanical efficiency, space-saving installation, and precise torque transmission, it is widely used in light conveyor systems, packaging machinery, and automated material handling[cite: 13].
Technical Specifications
| Model / Part Number | KA37DRN80M4[cite: 13] |
|---|---|
| Brand / Manufacturer | SEW-Eurodrive[cite: 13] |
| Gear Unit Type | KA Series (Helical-Bevel, Hollow Shaft)[cite: 13] |
| Motor Type | DRN80M4 (AC Squirrel-Cage Motor, IE3 Premium)[cite: 13] |
| Rated Motor Power (kW) | 0.75 kW (Standard)[cite: 13] |
| Output Speed / Ratio | Customizable via gearbox options (Contact for ratio details)[cite: 13] |
| Mounting Position | Universal / Hollow Shaft with Keyway[cite: 13] |
Documentation & Resources
SEW K37 Series Modular Configuration Matrix
Full-range modular assembly guide for SEW-Eurodrive Size 37 helical-bevel gearboxes[cite: 13]. Review supported mechanical mountings, current IE1-IE4 motor pairings, and factory protection options:
| Gear Unit Mounting / Shaft Design | Frame Size | Matched Motor Series & Powers | Optional Factory Accessories |
|---|---|---|---|
| KA37 (Hollow Shaft with Keyway) | Size 37 | DRN Series (IE3 Premium: 63M4 to 90L4 / 0.12 kW - 1.5 kW) | /BE (Fail-Safe Disc Brake) |
| K37 (Foot-Mounted Solid Shaft) | Size 37 | DRE Series (IE2 High Efficiency) | /TF (PTC Thermistor Thermal Protection) |
| KAF37 / KF37 (B5 Flange Mount) | Size 37 | DRS Series (IE1 Standard Efficiency) | /TH (Thermostat Switch Control) |
| KAZ37 (B14 Face Flange Mount) | Size 37 | DV / DT Series (Legacy Retrofit Motors: DT56 to DV90) | /RS (Mechanical Backstop / Anti-Runback) |
| KH37 / KHF37 / KHZ37 (Shrink Disc) | Size 37 | DFV / DFT Series (ATEX Explosion-Proof Executions) | /V (Forced Cooling Fan Attachment) |
| KT37 / KTF37 / KTZ37 (TorqLOC® Bushing) | Size 37 | CV / CT Series (Inverter-Duty & Servomotor Drives) | /DH (Heavy-Duty Condensation Drain) |
Legacy SEW Motor Replacement & IE3 DRN Upgrade Guide
Obsolete SEW motor ranges (DT, DV, DRS, DRE) installed on K37 gearboxes can be seamlessly replaced with current IE3 Premium Efficiency DRN motors. 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 |
|---|---|---|---|---|
| DT56S4 / DT56M4 / DT63K4 | IE1 / Standard Efficiency | DRN63MS4 / DRN63M4 IE3 Upgrade | 0.12 kW - 0.25 kW | Direct 1-to-1 flange & shaft match on K37 gearboxes. Lower energy loss. |
| DT71D4 / DV71D4 | IE1 / Standard Efficiency | DRN71M4 IE3 Upgrade | 0.37 kW - 0.55 kW | Identical mounting dimensions; direct drop-in replacement for KA37. |
| DT80N4 / DV80N4 | IE1 / Standard Efficiency | DRN80M4 IE3 Upgrade | 0.75 kW | Flange & shaft dimensions identical. Standard KA37 pairing. |
| DT90S4 / DV90S4 | IE1 / Standard Efficiency | DRN90S4 IE3 Upgrade | 1.1 kW | Direct replacement on K37, KAF37, and KH37 gear units. |
| DT90L4 / DV90L4 | IE1 / Standard Efficiency | DRN90L4 IE3 Upgrade | 1.5 kW | Maximum power capacity pairing for K37 series. Replaces legacy DV90L4. |
Expert Selection & Retrofit Engineering Notes
We specialize in providing complete drive packages and technical replacement solutions for the entire SEW-Eurodrive K37 series. Whether you require a foot-mounted solid shaft unit (K37), hollow shaft with keyway (KA37), B5 output flange (KAF37 / KF37), shrink disc connection (KH37), or keyless TorqLOC® clamping system (KT37), all mechanical designs can be supplied pre-assembled with state-of-the-art IE3 DRN series motors (DRN63M4 to DRN90L4).
When retrofitting an existing application featuring an obsolete DT56, DT63, DT71, DT80, or DV90 motor, 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 DT56, DT63, DT71, DT80, or DV90 motor, 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
- KA37 DRN63M4 (0.25 kW)
- KA37 DRN71M4 (0.37 kW)
- KA37 DRN80M4 (0.75 kW)
- KA37 DRN90S4 (1.1 kW)
- KA37 DRN90L4 (1.5 kW)
- K37 DRN71M4 (0.37 kW)
- K37 DRN80M4 (0.75 kW)
- KAF37 DRN71M4 (0.37 kW)
- KAF37 DRN80M4 (0.75 kW)
- KH37 DRN71M4 (0.37 kW)
- KH37 DRN80M4 (0.75 kW)
- KT37 DRN71M4 (0.37 kW)
- KT37 DRN80M4 (0.75 kW)
- KA37 DT71D4 (DT Replacement)
- KA37 DT80N4 (DT Replacement)
- KA37 DV90L4 (DV Replacement)
- K37 DT80N4 (DT Replacement)
- KAF37 DT80N4 (DT Replacement)
- KH37 DT80N4 (DT Replacement)
- KT37 DT80N4 (DT Replacement)
