Bruckner - High Performance Centres for Turning and Grindung

44 Example of function for T Line low clamping force medium clamping force high clamping force Range of axial force per coloured ring Technical features:  Spring loaded centres with pressure indication by yellow, green, red rings.  Designed for high radial and axial loads and for higher speeds.  High precision bearings in the head of the housing and within the taper. T he bearing seats of housing and centre spindle are matched to the bearings and ground to precise tolerances.  High concentricity accuracy tested under axial load and guaranteed with test report.  Housings and centre spindles are hardened.  Rotary seals protect bearings from dirt and coolant.  Maintenance-free due to permanent lubrication. Applications:  Multi-spindle machines  CNC lathes without tailstock  CNC lathes with opposed spindle Design principle on page 35, type LR High Performance Live Centres T Line Housing ∅ DG axial force daN 55 0-250 250-500 500-850 68 0-350 350-620 620-850 Reduction of spring force through soft spring on request

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