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- Chuck / Centerless SG2-C/R

Chuck / Centerless SG2-C/R
Correspond to various grinding such as seat by two axis interpolation control.
Space-saving internal grinder that can be adopted with chuck type workhead spindle as inherit SG1-IB.
Features
- Provide high accuracy chuck type workhead. Two rollers one shoe type workhead also is provided.
- Wheelhead spindle is given from 80,000 min-1 to 180,000 min-1.
- Succeed high speed two arm loader by servo motor drive for the chuck type workhead.
- Correspond various application such as front type in-process gauge and dressing unit with AE sensor.
- Succeed considerable downsizing compared to the conventional chuck type.
- Grinding Specifications (Grindable Diameter)
- Inside of Machine (Inside of Machine)
- Grinding Examples (Grinding Examples)
- Machine Dimensions (Machine Dimensions)
Grinding Specifications
| C type (Diaphragm chuck workhead) |
R type (2 roller 1 shoe workhead) |
|
|---|---|---|
| Outer diameter (mm) | φ8~ φ20 | φ1.5~ φ16 |
| Inner diameter (mm) | φ3~ φ12 | φ1.0~ φ10 |
| Width (mm) | 2.5~ 20 | 1~ 8 |
Inside of Machine
Cタイプ
Rタイプ
Grinding Examples
| Machine type |
SG2-C | SG2-R | |||
|---|---|---|---|---|---|
| Workhead type | Diaphragm chuck | 2 roller 1 shoe | |||
| Method of grinding |
Reciprocate Grinding | Reciprocate Grinding | |||
| Work | Diameter |
|
|
|
|
| Material | SUJ2 comparable | SUS440C comparable | SUS440C comparable | ||
| Hard- ness |
HRC58~62 | HRC58~64 | HRC58~62 | HRC58~64 | |
| Stock removal |
φ0.1mm | 0.1mm (onger direction) |
φ0.1mm | φ0.1mm | |
| Grinding accuracy |
Size variation |
within 2µm (with constant size) |
within ±10µm (sheet depth) |
within 2µm (with constant size) |
within 2µm (with constant size) |
| Round- ness |
within 1µm | within 1µm | within 0.3µm (O.D.roundness+) |
within 0.3µm (O.D.roundness+) |
|
| Rough- ness |
within Rz 1.2µm | within Rz 1.2µm | within Rz 1.2µm | within Rz 1.2µm | |
| Cylind- ricity |
within 2µm | - | within 2µm | within 2µm | |
| Straight- ness |
within 1µm | within 1µm | within 1µm | within 1.5µm | |
| R Shape | within 10µm | within 10µm | within 2µm | within 2µm | |
| Cycle Time |
within 9sec | within 10sec | within 8.5sec | within 12.5sec | |
Machine Dimensions



