Machine Tools｜Gear Cutting Machines｜Gear Hobbing Machines
High-precision Gear Hobbing Machines GE15FR Series
The company handling the product :Nidec Machine Tool Corporation
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The high-precision gear hobbing machines GE15FR/GE15FR Plus meet customer requirements for high-precision and high-speed processing for applications such as reduction gears.
GE15FR
- Max. workpiece diameter (mm)
φ150 - Max. module
2.5
GE15FR Plus
- Max. workpiece diameter (mm)
φ150 - Max. module
1.25
Features
Adopts a direct drive for the hob spindle and the table to reduce pitch error by 80% compared to conventional models
It achieves high-efficiency processing with a small-diameter hob cutter by increasing the speed of the spindle.
And the excellent design enables high precision hobbing by reducing spindle vibration and heat generation caused in the high speed rotation due to the direct drive.
- Direct-drive motor
- High-speed bearing arrangement
- HSK interface (Plus)
- Unit balance
- Bearing cooling
It achieves high-precision processing with the table design by which that we take into account the table rotation accuracy which affects workpiece accuracy.
- Direct-drive motor
- High precision encoder
- Low cogging torque motor (Plus)
- Non-contact seal
High-speed, high-precision processing example
High-speed processing with a cutting speed of 800 m/min using GE15FR Plus
Workpiece specifications
| Mn | 0.5 mm |
|---|---|
| Number of gears | 100 |
| Helix angle | 0 deg |
| Gear tip diameter | Approx. 50 mm |
| Gear width | 15 mm |
| Material | SCM415 |
Cutting conditions
| Hob speed | 8000 min-1 |
|---|---|
| HCutting speed | 804 m/min |
| Ax feed | 0.5 mm/t.rev |
Cutter specifications
| Outer diameter | 32 mm |
|---|---|
| Number of threads | 1 thread |
| Material | Carbide |
Cycle time
Specifications
| Item / Model | GE15FR | GE15FR Plus | |
|---|---|---|---|
| Max. workpiece diameter (mm) | φ150 | ||
| Max. module | 2.5 | 1.25 | |
| Axial travel (mm) | 250 | 250 | |
| Radial travel (mm) | 140 | 140 | |
| Hob | Max. diameter (mm) | φ100 | φ75 |
| Max. length (mm) | 150 | 150 | |
| Shift (mm) | 150 | 150 | |
| Rotation speed (min-1) | 6,000 Direct drive system |
8,000 Direct drive system |
|
| Max. table rotation speed (min-1) | 2,000 Direct drive system |
1,000 Direct drive system |
|
| Total electric power (kVA) | 35 | 37 | |
| Machine weight (kg) | 8,500 | 8,500 | |
