Siemens & Innomotics SIMOGEAR Bevel-Helical Geared Motors
Brand: Siemens / Innomotics | Series: SIMOGEAR K & B Series (B19-B49 / K39-K189 Range)
Brand Ownership & Lineage Notice — Siemens to Innomotics:
SIMOGEAR is the modern, highly efficient right-angle geared motor platform developed by Siemens as the direct successor to the legacy Flender MOTOX K and B series. Following Siemens' corporate restructuring of its electric motor and geared motor division, the entire SIMOGEAR portfolio has been integrated under the Innomotics brand identity.
Engineering Advantage & MOTOX Retrofit Compatibility:
• SIMOGEAR K series features 3-stage wear-free bevel gear teeth achieving up to 96% high transmission efficiency across all gear ratios.
• Integrated with Siemens/Innomotics LE/LA motors (such as 1LE0003 and 1LE1501 IE3 motors) across frame sizes IEC 63 to IEC 225M.
• 100% Direct Drop-in Retrofit: SIMOGEAR K sizes (K39, K49, K69, K89, K109, K129) feature standardized hollow/solid output shafts and torque arm dimensions designed to directly replace legacy Siemens MOTOX K gearmotors (K38, K48, K68, K88, K108, K128) with zero frame modification.
SIMOGEAR is the modern, highly efficient right-angle geared motor platform developed by Siemens as the direct successor to the legacy Flender MOTOX K and B series. Following Siemens' corporate restructuring of its electric motor and geared motor division, the entire SIMOGEAR portfolio has been integrated under the Innomotics brand identity.
Engineering Advantage & MOTOX Retrofit Compatibility:
• SIMOGEAR K series features 3-stage wear-free bevel gear teeth achieving up to 96% high transmission efficiency across all gear ratios.
• Integrated with Siemens/Innomotics LE/LA motors (such as 1LE0003 and 1LE1501 IE3 motors) across frame sizes IEC 63 to IEC 225M.
• 100% Direct Drop-in Retrofit: SIMOGEAR K sizes (K39, K49, K69, K89, K109, K129) feature standardized hollow/solid output shafts and torque arm dimensions designed to directly replace legacy Siemens MOTOX K gearmotors (K38, K48, K68, K88, K108, K128) with zero frame modification.
The SIMOGEAR Bevel-Helical Right-Angle Geared Motor Series (K & B Series) delivers maximum torque efficiency, high radial load capacities, and compact right-angle layout for heavy industrial automation. Matched with Siemens / Innomotics SIMOTICS AC motors from 0.09 kW up to 55 kW, SIMOGEAR K/B delivers nominal output torques from 110 Nm up to 19,000 Nm. Available in solid shaft (K/KF), hollow shaft with keyway (KA/KAF), hollow shaft with shrink disc (KAS/KASF), and torque arm configurations, SIMOGEAR K is heavily specified across heavy belt conveyors, crane travel drives, baggage handling systems, bucket elevators, and roller tables.
Technical Specifications
| Model / Part Number | SIMOGEAR K89-LE100LA4P (2.2 kW, 4-Pole, Frame 100, 3-Stage Bevel-Helical Right-Angle) |
|---|---|
| Brand Lineage | Siemens → Innomotics (100% Authentic OEM Channel Supply) |
| Gear Unit Layout | Bevel-Helical Right-Angle: B Series (2-Stage) & K Series (3-Stage / 4-Stage) |
| Frame Size Range | 13 Sizes: B19 to B49 (2-Stage) / K39 to K189 (3-Stage Heavy Duty) |
| Matched Motor Power & Frame | 0.09 kW to 55 kW (IEC Motor Frame Sizes 63 to 225M) |
| Nominal Output Torque | 110 Nm to 19,000 Nm (Full Series Capacity Range) |
| Gear Ratio Range | i = 3.50 to 300.00 (High-efficiency fine-step ratios) |
| Shaft & Mounting Executions | Solid Shaft, Hollow Shaft with Keyway, Hollow Shaft with Shrink Disc, Torque Arm, Flange B5/B14 |
Documentation & Resources
SIMOGEAR K & B Series Motor & Torque Matching Matrix
Complete power, motor frame, and torque matching guide for Siemens / Innomotics SIMOGEAR bevel-helical right-angle geared motors. Review supported motor frames and torque limits:
| SIMOGEAR Frame Size | Max Output Torque (Nm) | Matched Motor Power Range (kW) | Applicable IEC Motor Frame Sizes |
|---|---|---|---|
| SIMOGEAR B19 / B29 | 110 Nm - 220 Nm | 0.09 kW - 1.5 kW | IEC 63, 71, 80, 90 |
| SIMOGEAR B39 / B49 | 320 Nm - 500 Nm | 0.25 kW - 4.0 kW | IEC 71, 80, 90, 100, 112 |
| SIMOGEAR K39 / KA39 / KAF39 | 220 Nm | 0.12 kW - 3.0 kW | IEC 63, 71, 80, 90, 100 |
| SIMOGEAR K49 / KA49 / KAF49 | 450 Nm | 0.25 kW - 5.5 kW | IEC 71, 80, 90, 100, 112, 132S |
| SIMOGEAR K69 / KA69 / KAF69 | 850 Nm | 0.55 kW - 9.2 kW | IEC 80, 90, 100, 112, 132, 160M |
| SIMOGEAR K89 / KA89 / KAF89 | 1,600 Nm | 1.1 kW - 18.5 kW | IEC 90, 100, 112, 132, 160, 180M |
| SIMOGEAR K109 / KA109 / KAF109 | 3,200 Nm | 2.2 kW - 30.0 kW | IEC 100, 112, 132, 160, 180, 200L |
| SIMOGEAR K129 / KA129 to K189 | 5,800 Nm - 19,000 Nm | 4.0 kW - 55.0 kW | IEC 112 to IEC 225M Heavy Duty |
Legacy Siemens Flender MOTOX K to SIMOGEAR Direct Upgrade Guide
Obsolete MOTOX bevel-helical gearmotors (K38, K48, K68, K88, K108, K128) can be upgraded to current SIMOGEAR K units. Review the 1-to-1 dimensional and torque mapping below:
| Legacy MOTOX K Model (Obsolete) | Original Torque Rating | SIMOGEAR Current Direct Replacement | SIMOGEAR Max Torque | Mechanical Retrofit & Mounting Compatibility Notes |
|---|---|---|---|---|
| MOTOX K38 / KA38 / KAF38 | 180 Nm - 200 Nm | SIMOGEAR K39 / KA39 / KAF39 SIMOGEAR Upgrade | 220 Nm | Direct 30mm hollow shaft & torque arm match. 100% drop-in. |
| MOTOX K48 / KA48 / KAF48 | 400 Nm - 420 Nm | SIMOGEAR K49 / KA49 / KAF49 SIMOGEAR Upgrade | 450 Nm | Identical 35mm hollow shaft diameter and keyway dimensions. |
| MOTOX K68 / KA68 / KAF68 | 750 Nm - 800 Nm | SIMOGEAR K69 / KA69 / KAF69 SIMOGEAR Upgrade | 850 Nm | Preserves 40mm hollow shaft and B5 flange pitch circle. |
| MOTOX K88 / KA88 / KAF88 | 1,400 Nm - 1,500 Nm | SIMOGEAR K89 / KA89 / KAF89 SIMOGEAR Upgrade | 1,600 Nm | Higher energy efficiency rating. Direct match for 50mm hollow shaft. |
| MOTOX K108 / KA108 / KAF108 | 2,600 Nm - 2,800 Nm | SIMOGEAR K109 / KA109 / KAF109 SIMOGEAR Upgrade | 3,200 Nm | Heavy conveyor drive replacement. Matches 60mm hollow shaft footprint. |
Expert Selection & Retrofit Engineering Notes
WE DRIVE HONGKONG LIMITED provides technical sourcing and engineering configuration for the complete Siemens & Innomotics SIMOGEAR Bevel-Helical Geared Motor family. Whether your plant requires a solid shaft foot-mounted unit (K39 to K189), hollow shaft shaft-mounted unit with torque arm (KA39 to KA189), B5 flange execution (KF / KAF), or shrink disc hollow shaft execution (KAS / KASF), all units can be supplied pre-configured with integrated holding brakes, backstops, forced-cooling ventilation, or VFD-rated motor windings.
When replacing older Siemens Flender MOTOX K series gearmotors, choosing modern SIMOGEAR K units ensures higher energy efficiency (IE3/IE4 motors), high wear-free bevel gear durability, and extended lubricant service intervals while guaranteeing 100% exact physical mounting alignment without modifying torque arms or output shafts. Send us your existing MOTOX K or SIMOGEAR nameplate image, and our technical team will deliver a 100% compliant replacement quotation.
When replacing older Siemens Flender MOTOX K series gearmotors, choosing modern SIMOGEAR K units ensures higher energy efficiency (IE3/IE4 motors), high wear-free bevel gear durability, and extended lubricant service intervals while guaranteeing 100% exact physical mounting alignment without modifying torque arms or output shafts. Send us your existing MOTOX K or SIMOGEAR nameplate image, and our technical team will deliver a 100% compliant replacement quotation.
Core Benchmark Model Standard Configurations
- SIMOGEAR B29-LE63M4P (0.12 kW)
- SIMOGEAR B39-LE71M4P (0.37 kW)
- SIMOGEAR K39-LE80M4P (0.75 kW)
- SIMOGEAR KA39-LE80M4P (0.55 kW)
- SIMOGEAR KAF39-LE90S4P (1.1 kW)
- SIMOGEAR K49-LE90L4P (1.5 kW)
- SIMOGEAR KA49-LE100L4P (2.2 kW)
- SIMOGEAR K69-LE100LA4P (2.2 kW)
- SIMOGEAR KA69-LE112M4P (4.0 kW)
- SIMOGEAR K89-LE132S4P (5.5 kW)
- SIMOGEAR KA89-LE160M4P (11 kW)
- SIMOGEAR KAF89-LE160L4P (15 kW)
- SIMOGEAR KF39-LE80M4P (B5 Flange)
- SIMOGEAR KAF49-LE90L4P (B5 Flange)
- SIMOGEAR KAF89-LE132S4P (B5 Flange)
- MOTOX K38 Replacement (K39)
- MOTOX K48 Replacement (K49)
- MOTOX K68 Replacement (K69)
- MOTOX K88 Replacement (K89)
- SIMOGEAR Inverter Duty Bevel-Helical Motor
