SEW KA57DRN100L4 Helical-Bevel Gearmotor
Brand: SEW-Eurodrive | Series: KA-Series (Hollow Shaft)
The SEW KA57DRN100L4 is a highly robust industrial helical-bevel gearmotor featuring a hollow shaft design. Engineered for high mechanical efficiency, durable thermal dissipation, and optimal torque density, it is widely utilized in conveyor technology, material handling, and automated processing lines.
Technical Specifications
| Model / Part Number | KA57DRN100L4 |
|---|---|
| Brand / Manufacturer | SEW-Eurodrive |
| Gear Unit Type | KA Series (Helical-Bevel, Hollow Shaft) |
| Motor Type | DRN100L4 (AC Squirrel-Cage Motor, IE3 Premium) |
| Rated Motor Power (kW) | 3.0 kW (Standard) |
| Output Speed / Ratio | Customizable via gearbox options (Contact for ratio details) |
| Mounting Position | Universal / Hollow Shaft with Keyway |
Documentation & Resources
SEW K57 Series Modular Configuration Matrix
Full-range modular assembly guide for SEW-Eurodrive Size 57 helical-bevel gearboxes. 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 |
|---|---|---|---|
| KA57 (Hollow Shaft with Keyway) | Size 57 | DRN Series (IE3 Premium: 63M4 to 112M4 / 0.12 kW - 4.0 kW) | /BE (Fail-Safe Disc Brake) |
| K57 (Foot-Mounted Solid Shaft) | Size 57 | DRE Series (IE2 High Efficiency) | /TF (PTC Thermistor Thermal Protection) |
| KAF57 / KF57 (B5 Flange Mount) | Size 57 | DRS Series (IE1 Standard Efficiency) | /TH (Thermostat Switch Control) |
| KAZ57 (B14 Face Flange Mount) | Size 57 | DV / DT Series (Legacy Retrofit Motors: DT71 to DV112) | /RS (Mechanical Backstop / Anti-Runback) |
| KH57 / KHF57 / KHZ57 (Shrink Disc) | Size 57 | DFV / DFT Series (ATEX Explosion-Proof Executions) | /V (Forced Cooling Fan Attachment) |
| KT57 / KTF57 / KTZ57 (TorqLOC® Bushing) | Size 57 | 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 K57 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 |
|---|---|---|---|---|
| DT71D4 / DV71D4 | IE1 / Standard Efficiency | DRN71M4 IE3 Upgrade | 0.37 kW - 0.55 kW | Direct 1-to-1 flange & shaft match on K57 gearboxes. Lower energy loss. |
| DT80N4 / DV80N4 | IE1 / Standard Efficiency | DRN80M4 IE3 Upgrade | 0.75 kW | Identical mounting dimensions; direct drop-in replacement for KA57. |
| DT90S4 / DV90S4 | IE1 / Standard Efficiency | DRN90S4 IE3 Upgrade | 1.1 kW | Flange & shaft dimensions identical. Check terminal box position. |
| DT90L4 / DV90L4 | IE1 / Standard Efficiency | DRN90L4 IE3 Upgrade | 1.5 kW - 2.2 kW | Direct replacement on K57, KAF57, and KH57 gear units. |
| DV100M4 / DRE100M4 | IE1 / IE2 Efficiency | DRN100LS4 IE3 Upgrade | 2.2 kW - 3.0 kW | B5/B14 adapter compatibility preserved. Fully compliant with modern IE3 standards. |
| DV100L4 / DRE100L4 | IE1 / IE2 Efficiency | DRN100L4 IE3 Upgrade | 3.0 kW - 4.0 kW | Standard KA57 motor pairing. Replaces legacy DV100L4 seamlessly. |
| DV112M4 / DRE112M4 | IE1 / IE2 Efficiency | DRN112M4 IE3 Upgrade | 4.0 kW - 5.5 kW | Maximum standard power capacity pairing for K57 series. Replaces legacy DV112M4. |
Expert Selection & Retrofit Engineering Notes
We specialize in providing complete drive packages and technical replacement solutions for the entire SEW-Eurodrive K57 series. Whether you require a foot-mounted solid shaft unit (K57), hollow shaft with keyway (KA57), B5 output flange (KAF57 / KF57), shrink disc connection (KH57), or keyless TorqLOC® clamping system (KT57), all mechanical designs can be supplied pre-assembled with state-of-the-art IE3 DRN series motors (DRN71M4 to DRN112M4).
When retrofitting an existing application featuring an obsolete DT71, DT80, DT90, DV100, or DV112 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 DT71, DT80, DT90, DV100, or DV112 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
- KA57 DRN71M4 (0.37 kW)
- KA57 DRN80M4 (0.75 kW)
- KA57 DRN90S4 (1.1 kW)
- KA57 DRN90L4 (1.5 kW)
- KA57 DRN100LS4 (2.2 kW)
- KA57 DRN100L4 (3.0 kW)
- KA57 DRN112M4 (4.0 kW)
- K57 DRN90L4 (1.5 kW)
- K57 DRN100L4 (3.0 kW)
- KAF57 DRN90L4 (1.5 kW)
- KAF57 DRN100L4 (3.0 kW)
- KH57 DRN90L4 (1.5 kW)
- KH57 DRN100L4 (3.0 kW)
- KT57 DRN90L4 (1.5 kW)
- KT57 DRN100L4 (3.0 kW)
- KA57 DV100L4 (DV Replacement)
- KA57 DV112M4 (DV Replacement)
- K57 DV100L4 (DV Replacement)
- KAF57 DV100L4 (DV Replacement)
- KH57 DV100L4 (DV Replacement)
