Gear Grinding Machines
External Gear Grinding Machines ZE series
Company：NIDEC MACHINE TOOL CORPORATION
Features 1
We offer the product lineup of ZE16/26C, which are ideal for mass processing, and ZE40A, which can also handle large workpieces.
ZE16C
- Max. workpiece diameter (mm)
φ160 - Max. module
4
ZE26C
- Max. workpiece diameter (mm)
φ260 - Max. module
6
ZE40A
- Max. workpiece diameter (mm)
φ400 - Max. module
8
Features
High-precision processing with ZE16C/ZE26C
- New grinding wheel head improves static rigidity by 50% and dynamic rigidity by 35% from previous models
- Nidec's in-house developed linear scale is supplied as standard, providing precision stability over time
Processed sample
| Workpiece specifications | |
|---|---|
| module | 3.0 |
| Outer diameter | Φ105mm |
| Number of gears | 31 |
| Gear width | 40mm |
| Helix angle | 20° |
| OBD allowance | 0.5 |
| Processing conditions |
|---|
| 3-threads grinding wheel |
| 2 passes (climb/conventional) |
| Grinding wheel speed : 4,700 min-1 |
On tooth profile JIS N 1 class achieved
On tooth lead JIS N 0 class achieved
- Cycle time 49.5 seconds
- Grinding time 43.5 sec
- Non-processing time 6.0 sec
*Does not include dressing time allocation
HIgh-efficiency grinding with ZE16C/ZE26C
- The rotational speed of the built-in motor system grinding wheel shaft and table is greatly increased
| ZE16C/26C Grinding wheel |
|---|
| 6,000min-1 ? 8,000min-1 |
| ZE16C Table |
| 1,500min-1 ? 3,000min-1 |
| ZE26C Table |
| 600min-1 ? 2,000min-1 |
- Simultaneous shift grinding on the same tooth flank is possible
- Achieving a non-grinding time of 6 seconds with high speed auto-meshing and ring loader
- Extended dressing interval through the use of 160 mm 6.3 in wide grinding wheels
Specifications
| Item / Model | ZE16C | ZE26C | ZE40A |
|---|---|---|---|
| Max. workpiece diameter (mm) | ?160 | ?260 | ?400 |
| Max. module | 4 | 6 | 8 |
| Grinding wheel diameter × length (mm) | ?275 × 160 | ?300 × 125 | |
| Grinding wheel shift (mm) | 235 | 200 | |
| Helix angle (deg.) | ±45 | ||
| Max. grinding wheel speed (min-1) | 8,000 | 6,000 | |
| Max. table speed (min-1) | 3,000 | 2,000 | 600 |
| Radial feed distance (mm) | 280 | 570 | |
| Radial rapid traverse speed (mm/min) | 10,000 | ||
| Axial rapid traverse speed (mm/min) | 10,000 | ||
| Main motor (Cont.) (kW) | 30 | 25 | |
| Machine weight (kg) | 13,000 | 15,500 | 12,000 |
