{{ name }}
Article no. {{ combinedCodeWithHighlight }}
Article code:
EAN / GTIN:
Manufacturer number:
Cat. No.:
Alternative article:
-
Article no.: 321780 3
Revolving lathe centre with pressure indicator and extended point, Morse taper: 3
Article no.: 321770 3
Article code:
Click to enlarge image
32 1770 with extended point 60°/30°.
Click to enlarge image
Extended point for unobstructed access to the turning tool.
Click to enlarge image
Find similar products here:
Product details
Technical Data
| Overall length | 201 mm | |
| Head diameter | 64 mm | |
| Type of centring point | tracking | |
| Point angle | 30 degrees; 60 degrees | |
| Bull-nosed taper at front | no | |
| Point length | 45.5 mm | |
| Mounting machine-side | MK3 | |
| With push-off thread | no | |
| With clamping faces | no | |
| With carbide tip | no | |
| With shock absorbing | yes | |
| Usable length | 120 mm | |
| Max. workpiece weight | 260 kg | |
| Maximum radial run-out | 0.01 mm | |
| Half centring point | no | |
| Axial force | 5.5 kN | |
| Replaceable centring points included | no | |
| With pressure indicator | yes | |
| Use | turning | |
| Weight | 2.2 kg | |
| Type of product | centring drill |
Identification & Classification
| Article number | 321770 3 | |
| EAN / GTIN | 4019208018713 | |
| Manufacturer number | 079920 | |
| Manufacturer/responsible person | Röhm GmbH, Heinrich-Röhm-Straße 50, 89567 Sontheim/BRZ, Germany, www.roehm.biz |
Description
Version:
- The adjusting pressure (clamping force) is directly readable on the manometer sight glass in daN.
- The live centre, which is supported by a disc-spring pack, has a long spring travel.
- Short sturdy design with active longitudinal axis. Live centre through hardened and finish ground.
- Maximum accuracy due to precision roller bearings.
- With special seal against dirt and coolant ingress, maintenance-free due to lifetime lubrication.
With extended centre, point angle 60° / 30°.
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:
Whenever the clamping force has to be kept within certain limits,either to prevent deformation of the component or to ensure secure clamping with sufficient pressure.
- As a tailstock centre in conjunction with hydro-mechanical face drivers No. 327451 − 327541 because the drive teeth have to dig into the component.
- For components that expand significantly due to high machining heat.
- For clamping long slender components to prevent lateral displacement.
- For clamping heavy components where a controlled clamping force is required.