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Revolving lathe centre 60°, Morse taper: 5
Article no.: 616661
Catalog no.: 321255
Article code:
Product details
Technical Data
| Overall length L | 264 mm | |
| Head diameter D | 72 mm | |
| Type of centring point | tracking | |
| Point angle α | 60 degrees | |
| Largest point diameter D1 | 35 mm | |
| Bull-nosed taper at front | no | |
| Point length L3 | 43 mm | |
| Usable length L2 | 136 mm | |
| Mounting machine-side | MK5 | |
| With push-off thread | yes | |
| Draw-off nut included | yes | |
| With clamping faces | no | |
| With carbide tip | no | |
| With shock absorbing | no | |
| Max. workpiece weight | 2’200 kg | |
| Maximum speed | 8’000 min-1 | |
| Maximum radial run-out | 0.003 mm | |
| Half centring point | no | |
| Replaceable centring points included | no | |
| With pressure indicator | no | |
| Use | turning | |
| Weight | 4.2 kg | |
| Type of product | centring drill |
Identification & Classification
| Article number | 616661 | |
| Catalog number | 321255 | |
| EAN / GTIN | 4045197774439 | |
| Manufacturer number | 321255 5 | |
| Article class | 31Z | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
Point angle 60°.
- With extended centre and draw-off nut, specially for CNC machines.
- Complete tool hardened and ground.
- Special roller bearings for high loads and speeds.
- Live centre through hardened, can be reground many times.
- Maintenance-free due to lifetime lubrication.
- Special seal prevents ingress of dirt and coolant.
Description:
Lathe centres are mainly used on lathes to support long and slim workpieces, since with these workpieces there would otherwise be a risk of the workpiece bending or moving around as a result of the forces generated.
The lathe centre is secured with a Morse taper. The workpiece is clamped in the chuck and a counterbore is added using a centre drill. After re-clamping, the lathe centre is then inserted.
The lathe centre is secured with a Morse taper. The workpiece is clamped in the chuck and a counterbore is added using a centre drill. After re-clamping, the lathe centre is then inserted.
Application:
For high loads and speeds, specially for NC machines.
Note:
Draw-off nut for NC machines to remove tip from tailstock sleeve.