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Article no.: 321780 5
Revolving lathe centre with pressure indicator and extended point, Morse taper: 5
Article no.: 321770 5
Article code:
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32 1770 with extended point 60°/30°.
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Extended point for unobstructed access to the turning tool.
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Product details
Technical Data
| Overall length L | 307.2 mm | |
| Head diameter D | 95 mm | |
| Type of centring point | tracking | |
| Point angle α | 30 degrees; 60 degrees | |
| Bull-nosed taper at front | no | |
| Point length L3 | 66 mm | |
| Mounting machine-side | MK5 | |
| With push-off thread | no | |
| With clamping faces | no | |
| With carbide tip | no | |
| With shock absorbing | yes | |
| Usable length L2 | 177.5 mm | |
| Max. workpiece weight | 1,100 kg | |
| Maximum radial run-out | 0.01 mm | |
| Half centring point | no | |
| Axial force | 15 kN | |
| Replaceable centring points included | no | |
| With pressure indicator | yes | |
| Use | turning | |
| Weight | 8.4 kg | |
| Type of product | centring drill |
Identification & Classification
| Article number | 321770 5 | |
| EAN / GTIN | 4019208018737 | |
| Manufacturer number | 079922 | |
| 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.