Lenze g500-S Shaft-Mounted Parallel Helical Geared Motors
The Lenze g500-S Series (featured model: g500-S400/m550-P90L4 1.5 kW IE3) is Lenze's slim-line shaft-mounted parallel helical geared motor platform, engineered for narrow installation spaces, high overhung radial loads, and direct hollow-shaft machine mounting. Achieving gear transmission efficiency up to 94% to 96%, g500-S gearboxes feature lightweight aluminum housing construction (g500-S130, S220, S400) and rigid cast iron housings (g500-S660, S1600), covering output torques from 130 Nm to 1,600 Nm. Matched with modern **Lenze m550 IE3 Premium Efficiency Three-Phase Motors** (or Lenze Smart Motors), g500-S shaft-mounted geared motors provide 100% direct 1-to-1 mechanical compatibility to replace legacy **Lenze GFA Series** gearmotors in overhead crane hoists, belt feeders, agitators, and material handling conveyors.
Technical Specifications
| Featured Model | g500-S400/m550-P90L4 (Size S400, 2-Stage Parallel Helical, 1.5 kW IE3 Motor) |
|---|---|
| Brand / Manufacturer | Lenze SE (Germany) |
| Product Series | g500-S Series Shaft-Mounted Parallel Shaft Geared Motors |
| Frame Sizes Covered | g500-S130, g500-S220, g500-S400, g500-S660, g500-S1600 (5 Key Frame Sizes) |
| Gear Transmission Efficiency | 94% (3-stage) to 96% (2-stage high efficiency) |
| Nominal Output Torque | 130 Nm to 1,600 Nm (Peak Transmissible Torque up to 3,200 Nm) |
| Matched Motor Power | 0.09 kW to 22.0 kW (m550 IE3 Premium & m540 IE2 AC Motors) |
| Mounting & Shaft Options | Hollow Shaft with Keyway, Hollow Shaft with Shrink Disc, Solid Shaft, Rubber Buffer Torque Arm, Output Flange B5/B14 |
Documentation & Resources
Lenze g500-S Series Frame Size & Motor Power Matching Matrix
Full selection matrix for Lenze g500-S shaft-mounted parallel helical geared motors. Review torque capacity, gear ratio range, and matched m550 IE3 motor powers across all 5 frame sizes:
| Lenze Gearbox Size | Max Output Torque (Nm) | Gear Ratio Range (i) | Matched Motor Power (kW) | Matched Lenze m550 Motor Frame (IE3) |
|---|---|---|---|---|
| g500-S130 | 130 Nm | i = 4.0 to 300.0 | 0.09 kW - 2.2 kW | m550-P63M4, P71M4, P80M4, P90S4, P100L4 |
| g500-S220 | 220 Nm | i = 4.5 to 360.0 | 0.12 kW - 4.0 kW | m550-P63M4, P71M4, P80M4, P90L4, P100L4, P112M4 |
| g500-S400 | 400 Nm | i = 5.0 to 400.0 | 0.25 kW - 7.5 kW | m550-P71M4, P80M4, P90L4, P100L4, P112M4, P132M4 |
| g500-S660 | 660 Nm | i = 5.6 to 450.0 | 0.55 kW - 11.0 kW | m550-P80M4, P90L4, P100L4, P112M4, P132M4, P160M4 |
| g500-S1600 | 1,600 Nm | i = 6.3 to 500.0 | 1.1 kW - 22.0 kW | m550-P90L4, P100L4, P112M4, P132M4, P160M4, P180M4 |
Legacy Lenze GFA Series to g500-S Series IE3 Premium Efficiency Upgrade Guide
Obsolete Lenze GFA Series parallel shaft gearmotors (GFA04, GFA05, GFA06, GFA07, GFA09) can be directly upgraded to modern g500-S Series gearmotors equipped with m550 IE3 Premium Efficiency motors while preserving 100% exact hollow shaft bore diameters and torque arm points:
| Legacy Lenze GFA Model (Obsolete) | Legacy Motor Frame | Current g500-S IE3 Equivalent Model | Current IE3 Motor Frame | Mechanical Compatibility & Retrofit Notes |
|---|---|---|---|---|
| Lenze GFA04-2M / GFA04-3M | MDEMA 063 / 071 Motor | Lenze g500-S130/m550-P71M4 100% Drop-In | m550-P71M4 (0.37 kW IE3) | Direct 1:1 drop-in replacement. Fits 20mm/25mm hollow shaft & torque arm. |
| Lenze GFA05-2M / GFA05-3M | MDEMA 080 Motor | Lenze g500-S220/m550-P80M4 100% Drop-In | m550-P80M4 (0.75 kW IE3) | Identical torque arm rubber buffer mounting and 30mm hollow shaft bore. |
| Lenze GFA06-2M / GFA06-3M | MDEMA 090 Motor | Lenze g500-S400/m550-P90L4 100% Drop-In | m550-P90L4 (1.5 kW IE3) | Matches 35mm/40mm hollow shaft. IE3 motor reduces power consumption up to 12%. |
| Lenze GFA07-2M / GFA07-3M | MDEMA 100 / 112 Motor | Lenze g500-S660/m550-P100L4 IE3 Upgrade | m550-P100L4 (2.2 kW IE3) | Direct replacement for 2.2 kW crane drives. 45mm/50mm hollow output shaft. |
| Lenze GFA09-2M / GFA09-3M | MDEMA 132 / 160 Motor | Lenze g500-S1600/m550-P132M4 IE3 Upgrade | m550-P132M4 (7.5 kW IE3) | Direct replacement for heavy 7.5 kW drives. 60mm/70mm hollow output shaft. |
Expert Selection & Retrofit Engineering Notes
When replacing older Lenze GFA Series parallel shaft gearmotors on existing production lines, switching to current g500-S series models with m550 IE3 Premium Efficiency motors guarantees 100% exact physical mounting alignment without modifying torque arm brackets or output shafts. Simply supply us with your existing Lenze nameplate serial number or code (e.g., g500-S400-m550-P90L4), and our technical team will deliver a 100% compliant replacement specification and proposal.
Core Benchmark Model Standard Configurations
- g500-S130/m550-P63M4 (0.18 kW)
- g500-S130/m550-P71M4 (0.37 kW)
- g500-S220/m550-P71M4 (0.37 kW)
- g500-S220/m550-P80M4 (0.75 kW IE3)
- g500-S400/m550-P80M4 (0.75 kW IE3)
- g500-S400/m550-P90L4 (1.5 kW IE3)
- g500-S660/m550-P90L4 (1.5 kW IE3)
- g500-S660/m550-P100L4 (2.2 kW IE3)
- g500-S1600/m550-P112M4 (4.0 kW IE3)
- g500-S1600/m550-P132M4 (7.5 kW IE3)
- g500-S1600/m550-P160M4 (11.0 kW IE3)
- g500-S220/m550-P80M4 (B5 Flange)
- g500-S400/m550-P90L4 (B5 Flange)
- g500-S660/m550-P100L4 (Shrink Disc)
- Lenze GFA04-2M Replacement
- Lenze GFA05-2M Replacement
- Lenze GFA06-2M Replacement
- Lenze GFA07-2M Replacement
- Lenze GFA09-2M Replacement
- Lenze Smart Motor g500-S Drive
