Bonfiglioli TQ Precision Planetary Servo Gearbox (TQ & TKB Series)
The Bonfiglioli TQ 090 (featured model: TQ 090 1/10 Low-Backlash) represents the pinnacle of motion control engineering from Bonfiglioli's high-precision TQ Coaxial and TKB Right-Angle Bevel-Planetary series. Designed for high dynamic servo applications, fast indexers, and cyclic indexing motions, Bonfiglioli precision planetary gearboxes achieve ultra-low torsional backlash (< 3 arcmin for 1-stage, < 5 arcmin for 2-stage), high torsional stiffness, and smooth continuous rotation up to 6,000 rpm input speeds. Manufactured with high-strength alloy steel helical gearing, full needle roller planet bearings, and integrated motor clamping couplings, the TQ and TKB series gearboxes support output torques from 30 Nm up to 1,000 Nm across 6 standard frame sizes (060 to 170). With universal AC servo motor input adapter bushings, Bonfiglioli precision planetaries provide a 100% direct 1-to-1 mechanical drop-in replacement for Neugart PLN/WPLN, Wittenstein Alpha LP/TP, and Apex Dynamics AB/AF servo reducers across CNC machine tool feed axes, industrial packaging, semiconductor handling, and multi-axis robotics.
Technical Specifications
| Featured Model | TQ 090 1/10 (Frame Size 090, 1-Stage Coaxial Planetary, Ratio 1:10, Low Backlash) |
|---|---|
| Brand / Manufacturer | Bonfiglioli Riduttori S.p.A. (Italy) |
| Product Line | TQ Series (High Precision Coaxial) & TKB Series (Right-Angle Bevel-Planetary) |
| Available Sizes | TQ 060, TQ 070, TQ 090, TQ 130, TQ 160, TQ 170 / TKB 060, TKB 070, TKB 090, TKB 130, TKB 160, TKB 170 |
| Torsional Backlash | Standard $j_t \le 5\text{ arcmin}$; Reduced Backlash $j_t \le 3\text{ arcmin}$ (1-Stage Precision) |
| Acceleration Torque | 30 Nm to 1,000 Nm (Peak Emergency Stop Torque up to 2,000 Nm) |
| Available Ratios | Single Stage: 3, 4, 5, 7, 10 / Two Stage: 16, 20, 25, 28, 35, 40, 50, 70, 100 |
| Motor Input Interface | Universal Servo Adapter Bushing (Fits Siemens 1FL6/1FK7, Yaskawa, Fanuc, Mitsubishi) |
Documentation & Resources
Bonfiglioli Precision Planetary Series Architecture Matrix
Comprehensive configuration guide for Bonfiglioli TQ, TKB, LC, and MP precision planetary servo gearboxes. Review torque ratings, backlash limits, and target motion control applications:
| Series Designation & Layout | Covered Frame Sizes | Backlash ($j_t$ arcmin) | Max. Acceleration Torque (Nm) | Primary Target Motion Applications |
|---|---|---|---|---|
| TQ Series (Coaxial High Precision Helical) | TQ 060 to TQ 170 (6 Sizes) | $\le 3\text{ to } 5\text{ arcmin}$ | 30 Nm - 1,000 Nm | CNC Feed Axes, Laser Cutters, High-Speed Indexers |
| TKB Series (Right-Angle Precision Bevel) | TKB 060 to TKB 170 (6 Sizes) | $\le 4\text{ to } 6\text{ arcmin}$ | 30 Nm - 900 Nm | Space-saving Right-Angle Servo Drives, Gantry Arms |
| LC / LCP Series (Compact Industrial Servo) | LC 050 to LC 120 (4 Sizes) | $\le 6\text{ to } 10\text{ arcmin}$ | 15 Nm - 300 Nm | Packaging Conveyors, Pick & Place Gantry Robots |
| MP / TR Series (Cost-Effective General Automation) | MP 053 to MP 160 (5 Sizes) | $\le 10\text{ to } 15\text{ arcmin}$ | 12 Nm - 500 Nm | General Positioning, Printing Lines, Material Handling |
Direct Servo Replacement Guide from Neugart & Wittenstein Alpha to Bonfiglioli
Bonfiglioli TQ and TKB precision planetaries feature standardized square output flanges (ISO 9409) and shaft dimensions, making them 100% physically interchangeable with competing low-backlash servo gearboxes:
| Competing Servo Reducer (Neugart / Alpha / Apex) | Output Shaft & Flange | Bonfiglioli 1-to-1 Equivalent Model | Backlash Rating | Mechanical Fit & Servo Coupling Notes |
|---|---|---|---|---|
| Neugart PLN 070 / Wittenstein LP 070 | 60mm / 70mm square flange | Bonfiglioli TQ 070 100% Direct Drop-in | $\le 3\text{ arcmin}$ | Direct 1:1 match for pilot diameter, pitch circle, and output shaft. |
| Neugart PLN 090 / Wittenstein LP 090 | 90mm square flange | Bonfiglioli TQ 090 100% Direct Drop-in | $\le 3\text{ arcmin}$ | Matches 22mm output shaft diameter and motor adapter bushing. |
| Neugart PLN 115 / Apex AB 115 | 115mm / 130mm square flange | Bonfiglioli TQ 130 100% Direct Drop-in | $\le 3\text{ arcmin}$ | High torsional rigidity for heavy CNC axis drives and indexing tables. |
| Neugart WPLN 090 Right-Angle | 90mm right angle flange | Bonfiglioli TKB 090 Right-Angle Swap | $\le 4\text{ arcmin}$ | Direct drop-in replacement for compact gantry and robot arm spaces. |
| Neugart PLE 080 / Apex PE 090 | 80mm / 90mm round flange | Bonfiglioli LC 070 / MP 080 Cost-Effective | $\le 6\text{ arcmin}$ | Economical replacement for light-duty automation and conveyor indexing. |
Expert Engineering Notes on Selection & Servo Motor Sizing
When retrofitting worn Neugart PLN/WPLN, Wittenstein Alpha, or Apex Dynamics servo reducers on automated production equipment, choosing Bonfiglioli TQ/TKB units ensures 100% exact mechanical mounting alignment, ultra-low torsional backlash (< 3 arcmin), and high acceleration torque without reprogramming the servo drive gains inside your PLC. Send us your motor model or existing planetary gearbox code, and our technical team will deliver a 100% compliant replacement specification and proposal.
Standard Configurations of Core Benchmark Models
- TQ 060 1/5 Servo Adapter
- TQ 060 1/10 Low Backlash
- TQ 070 1/5 Precision Coaxial
- TQ 070 1/25 Two Stage
- TQ 090 1/5 High Rigid
- TQ 090 1/10 Low Backlash
- TQ 090 1/35 Two Stage
- TQ 130 1/5 CNC Feed Drive
- TQ 130 1/10 High Torque
- TQ 160 1/10 Heavy Precision
- TKB 060 1/10 Right Angle
- TKB 070 1/25 Bevel Planetary
- TKB 090 1/10 Low Backlash
- TKB 110 1/25 Right Angle
- LC 050 1/5 Servo Gearbox
- LC 070 1/10 Compact Reducer
- MP 080 1/5 Economy Servo
- Neugart PLN 090 Replacement
- Wittenstein LP 090 Replacement
- Apex AB 115 Replacement
