SEW X3F250e Industrial Gearbox (Xe Generation Size 250)
The SEW X3F250e is a 3-stage parallel helical heavy-duty industrial gearbox engineered within SEW-Eurodrive's upgraded Xe Generation (Generation e) platform[cite: 15]. Delivering a nominal output torque capacity of 175 kNm[cite: 15], the Size 240/250 Xe Series incorporates optimized gear tooth contact geometry, expanded housing surface thermal dissipation, low-friction seal assemblies, and extended bearing operational life[cite: 15]. Designed to cover nominal torques from 6.8 kNm up to 475 kNm across the X platform[cite: 15], the X240e and X250e sizes provide complete 1-to-1 dimensional compatibility to directly replace legacy M Series (M2PSF70 / M3RSF70), MC Series, and M3 Series industrial speed reducers in heavy mining conveyors, cement kilns, port cranes, ball mills, and industrial agitators[cite: 15].
Technical Specifications
| Model / Part Number | X3F250e (3-Stage Helical, Size 250 Xe Generation)[cite: 15] |
|---|---|
| Brand / Manufacturer | SEW-Eurodrive[cite: 15] |
| Gear Unit Layout | Parallel Helical (X.F / X.Fe) & Right-Angle Bevel-Helical (X.K / X.Ke)[cite: 15] |
| Frame Size Focus | Sizes X240e (156 kNm) & X250e (175 kNm)[cite: 15] |
| Nominal Torque Output | 175 kNm (X250e) / 156 kNm (X240e) / 6.8 to 475 kNm (Full Series Range)[cite: 15] |
| Gear Ratio Range | i = 6.3 to 450 (2-stage, 3-stage, and 4-stage executions)[cite: 15] |
| Legacy Compatibility | Direct drop-in replacement for SEW M Series (M2PSF70 / M3RSF70), MC, and M3 Series[cite: 15] |
| Shaft & Mounting Design | Solid Shaft, Hollow Shaft with Keyway/Shrink Disc, Flange, Torque Arm[cite: 15] |
Documentation & Resources
SEW X & Xe Series Modular Architecture Matrix
Structural layout guide for SEW-Eurodrive X and Xe series industrial gearboxes across parallel helical and right-angle bevel-helical configurations[cite: 15]. Review supported mounting orientations, shaft executions, and auxiliary thermal options:
| Gear Unit Layout & Series Design | Frame Size Range | Nominal Torque Capacity (kNm) | Standard Factory Accessories |
|---|---|---|---|
| X.F / X.Fe (2, 3, 4-Stage Parallel Helical)[cite: 15] | X100e to X320e (23 Sizes)[cite: 15] | 6.8 kNm - 475 kNm[cite: 15] | /CC (Fan Cooling Cover) |
| X.K / X.Ke (2, 3, 4-Stage Right-Angle Bevel-Helical)[cite: 15] | X100e to X320e (23 Sizes)[cite: 15] | 6.8 kNm - 475 kNm[cite: 15] | /OW (Water/Oil Heat Exchanger) |
| X.T (3-Stage Bucket Elevator Drives)[cite: 15] | X100e to X300e (10 Sizes)[cite: 15] | 6.8 kNm - 350 kNm[cite: 15] | /OA (Air/Oil Heat Exchanger) |
| X.P (Planetary Helical Combination Drives)[cite: 15] | X100e to X300e (10 Sizes)[cite: 15] | 22.0 kNm - 350 kNm[cite: 15] | /BS (Backstop / Anti-Runback Device) |
| MC / M Series (Legacy Retrofit Executions)[cite: 15] | MC02 to MC09 / M50 to M120[cite: 15] | 6.0 kNm - 180 kNm[cite: 15] | /MH (Engineered Adapter Flange) |
Legacy SEW MC / M / M3 Gearbox Replacement & Xe Upgrade Guide
Obsolete SEW industrial gearboxes (M2PSF70, M3RSF70, M3PSF70, MC2RL06, MC3RL06) can be directly upgraded to current high-efficiency Xe generation gear units[cite: 15]. Refer to the dimensional and torque replacement mapping below:
| Legacy Gearbox Model (Obsolete) | Original Torque Rating | Current Xe Series Replacement | Xe Nominal Torque | Mechanical Retrofit & Mounting Compatibility Notes |
|---|---|---|---|---|
| MC2RL02 / MC3RL02 / MC3RH02[cite: 15] | 6.0 kNm - 7.5 kNm[cite: 15] | X2F100e / X3F100e / X3K100e Xe Upgrade[cite: 15] | 6.8 kNm[cite: 15] | Direct centerline height & foot mounting match. Standardized adapter available[cite: 15]. |
| MC2RL04 / MC3RL04 / MC3RH04[cite: 15] | 18.0 kNm - 21.0 kNm[cite: 15] | X2F140e / X3F140e / X3K140e Xe Upgrade[cite: 15] | 22.0 kNm[cite: 15] | Upgraded gear geometry. Preserves existing torque arm and mounting base[cite: 15]. |
| M2PSF50 / M3RSF50 / M3PSF50[cite: 15] | 60.0 kNm - 70.0 kNm[cite: 15] | X2F200e / X3F200e / X3K200e Xe Upgrade[cite: 15] | 79.0 kNm[cite: 15] | Direct replacement for M50 heavy drive. Standard sub-base adapter available[cite: 15]. |
| M2PSF60 / M3RSF60 / M3PSF60[cite: 15] | 90.0 kNm - 105.0 kNm[cite: 15] | X2F220e / X3F220e / X3K220e Xe Upgrade[cite: 15] | 112.0 kNm[cite: 15] | Upgraded thermal capacity. Custom sub-base adapters for foundation bolt alignment[cite: 15]. |
| M2PSF70 / M3RSF70 / M3PSF70[cite: 15] | 120.0 kNm - 140.0 kNm[cite: 15] | X2F250e / X3F250e / X3K250e Xe Upgrade[cite: 15] | 175.0 kNm[cite: 15] | Custom sub-base adapters ensure direct alignment with existing foundation bolts[cite: 15]. |
| M2PSF80 / M3RSF80 / M3PSF80[cite: 15] | 150.0 kNm - 180.0 kNm[cite: 15] | X2F260e / X3F260e / X3K260e Xe Upgrade[cite: 15] | 205.0 kNm[cite: 15] | Heavy mining & mill drive replacement with engineered transition sub-bases[cite: 15]. |
Expert Selection & Retrofit Engineering Notes
If you are replacing an obsolete M Series (M2PSF70 to M3RSF70)[cite: 15], MC Series[cite: 15], or M3 Series unit[cite: 15], upgrading to the new Xe Generation Size 240/250 ensures complete mechanical interchangeability while offering significantly higher thermal ratings and extended oil service intervals[cite: 15]. Simply supply us with your existing SEW serial number or nameplate data, and our engineering team will provide a 100% compliant replacement specification and quote.
Core Benchmark Model Standard Configurations
- X3F250e (175 kNm)[cite: 15]
- X3K250e (175 kNm)[cite: 15]
- X2F250e (175 kNm)[cite: 15]
- X2K250e (175 kNm)[cite: 15]
- X3F240e (156 kNm)[cite: 15]
- X3K240e (156 kNm)[cite: 15]
- X3F220e (112 kNm)[cite: 15]
- X3K220e (112 kNm)[cite: 15]
- X3F260e (205 kNm)[cite: 15]
- X3K260e (205 kNm)[cite: 15]
- X3F280e (270 kNm)[cite: 15]
- X3F300e (350 kNm)[cite: 15]
- M2PSF70 (M70 Replacement)[cite: 15]
- M3RSF70 (M70 Replacement)[cite: 15]
- M3PSF70 (M70 Replacement)[cite: 15]
- MC3RLSF06 (MC06 Replacement)[cite: 15]
