SEW KA47DRN90L4 Helical-Bevel Gearmotor
Brand: SEW-Eurodrive | Series: KA-Series (Hollow Shaft)
The SEW KA47DRN90L4 is a versatile industrial helical-bevel gearmotor featuring a hollow shaft design[cite: 12]. Engineered for high mechanical efficiency, robust thermal capacity, and reliable torque transmission, it is widely used in medium-duty conveyor systems, drive units, and material processing machinery[cite: 12].
Technical Specifications
| Model / Part Number | KA47DRN90L4[cite: 12] |
|---|---|
| Brand / Manufacturer | SEW-Eurodrive[cite: 12] |
| Gear Unit Type | KA Series (Helical-Bevel, Hollow Shaft)[cite: 12] |
| Motor Type | DRN90L4 (AC Squirrel-Cage Motor, IE3 Premium)[cite: 12] |
| Rated Motor Power (kW) | 1.5 kW (Standard)[cite: 12] |
| Output Speed / Ratio | Customizable via gearbox options (Contact for ratio details)[cite: 12] |
| Mounting Position | Universal / Hollow Shaft with Keyway[cite: 12] |
Documentation & Resources
SEW K47 Series Modular Configuration Matrix
Full-range modular assembly guide for SEW-Eurodrive Size 47 helical-bevel gearboxes[cite: 12]. 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 |
|---|---|---|---|
| KA47 (Hollow Shaft with Keyway) | Size 47 | DRN Series (IE3 Premium: 63M4 to 100L4 / 0.12 kW - 3.0 kW) | /BE (Fail-Safe Disc Brake) |
| K47 (Foot-Mounted Solid Shaft) | Size 47 | DRE Series (IE2 High Efficiency) | /TF (PTC Thermistor Thermal Protection) |
| KAF47 / KF47 (B5 Flange Mount) | Size 47 | DRS Series (IE1 Standard Efficiency) | /TH (Thermostat Switch Control) |
| KAZ47 (B14 Face Flange Mount) | Size 47 | DV / DT Series (Legacy Retrofit Motors: DT63 to DV100) | /RS (Mechanical Backstop / Anti-Runback) |
| KH47 / KHF47 / KHZ47 (Shrink Disc) | Size 47 | DFV / DFT Series (ATEX Explosion-Proof Executions) | /V (Forced Cooling Fan Attachment) |
| KT47 / KTF47 / KTZ47 (TorqLOC® Bushing) | Size 47 | 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 K47 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 |
|---|---|---|---|---|
| DT63K4 / DT63S4 | IE1 / Standard Efficiency | DRN63MS4 / DRN63M4 IE3 Upgrade | 0.12 kW - 0.25 kW | Direct 1-to-1 flange & shaft match on K47 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 KA47. |
| DT80N4 / DV80N4 | IE1 / Standard Efficiency | DRN80M4 IE3 Upgrade | 0.75 kW | Flange & shaft dimensions identical. Check terminal box position. |
| DT90S4 / DV90S4 | IE1 / Standard Efficiency | DRN90S4 IE3 Upgrade | 1.1 kW | Direct replacement on K47, KAF47, and KH47 gear units. |
| DT90L4 / DV90L4 | IE1 / Standard Efficiency | DRN90L4 IE3 Upgrade | 1.5 kW - 2.2 kW | B5/B14 adapter compatibility preserved. Standard KA47 pairing. |
| DV100M4 / DRE100M4 | IE1 / IE2 Efficiency | DRN100LS4 IE3 Upgrade | 2.2 kW - 3.0 kW | Identical shaft centerline height & mounting pattern. Brake options BE1/BE2. |
| DV100L4 / DRE100L4 | IE1 / IE2 Efficiency | DRN100L4 IE3 Upgrade | 3.0 kW | Maximum power capacity pairing for K47 series. Replaces legacy DV100L4. |
Expert Selection & Retrofit Engineering Notes
We specialize in providing complete drive packages and technical replacement solutions for the entire SEW-Eurodrive K47 series. Whether you require a foot-mounted solid shaft unit (K47), hollow shaft with keyway (KA47), B5 output flange (KAF47 / KF47), shrink disc connection (KH47), or keyless TorqLOC® clamping system (KT47), all mechanical designs can be supplied pre-assembled with state-of-the-art IE3 DRN series motors (DRN63M4 to DRN100L4).
When retrofitting an existing application featuring an obsolete DT63, DT71, DT80, DT90, or DV100 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 DT63, DT71, DT80, DT90, or DV100 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
- KA47 DRN63M4 (0.25 kW)
- KA47 DRN71M4 (0.37 kW)
- KA47 DRN80M4 (0.75 kW)
- KA47 DRN90S4 (1.1 kW)
- KA47 DRN90L4 (1.5 kW)
- KA47 DRN100LS4 (2.2 kW)
- KA47 DRN100L4 (3.0 kW)
- K47 DRN80M4 (0.75 kW)
- K47 DRN90L4 (1.5 kW)
- KAF47 DRN80M4 (0.75 kW)
- KAF47 DRN90L4 (1.5 kW)
- KH47 DRN80M4 (0.75 kW)
- KH47 DRN90L4 (1.5 kW)
- KT47 DRN80M4 (0.75 kW)
- KT47 DRN90L4 (1.5 kW)
- KA47 DV90L4 (DV Replacement)
- KA47 DV100L4 (DV Replacement)
- K47 DV90L4 (DV Replacement)
- KAF47 DV90L4 (DV Replacement)
- KH47 DV90L4 (DV Replacement)
