35 LR Series – simultaneous clamping and regulation The spring loaded centrepoint with coloured rings for pressure indication allows simple adjustment and reading of the axial pressure. The spring loading compensates for workpiece thermal expansion and variation of workpiece length. LR series centres are essential for operations using face drivers or machine tools without pressure indication. The ideal arrangement of the high precision roller bearings prove the strength of the LR types for higher speed. High concentricity accuracy tested under axial load guaranteed by test report Spring loaded centrepoint of through-hardened alloy wear resistant tool steel. With coloured rings for pressure indication Seal ring protects the bearings from dirt and coolant Precision bearings with precision ground bearing seats of housing and on the centre spindle. The bearing seats are matched to the bearings. Maintenance-free due to permanent lubrication Spring loading Housing of high tensile tool steel. Housing head and shank are case hardened for protection against damage 1 2 3 4 5 6 High Performance Live Centres LR/LD Series 1 2 3 4 4 5 6 Produced according to BRUCKNER WORKS STANDARD (page 8)
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