• Liebherr L 650 Gear Hobber – Year 1975

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    Description

    Liebherr L 650 Gear Hobber – Year 1975

    Specifications
    Model L650
    Year 1975
    Condition Used
    Serial Number 0655/13

    Maximum diameter of gear 26″ (650MM)
    Maximum dp (module) steel 2.5 DP (10-MODULE)
    Maximum axial travel (vertical) 14.5″ (370MM)
    Minimum number of teeth cut 6
    Work table diameter 22″ (560MM)
    Master worm-wheel diameter in table 22.6″ (575MM)
    Table bore diameter 7.5″ (190.5MM)
    Min center distance between hob & work 2″ (50MM)
    Max center distance between hob & work 17″ (435MM)
    Clamping height above worktable 8.5″ (215MM)
    Maximum hob diameter 7.8″ (200MM)
    Maximum hob length 7.8″ (200MM)
    Hob spindle taper NO. 5 MORSE
    Maximum hob shift (tangential) 5.31″ (134.9MM)
    Feed range (INFINITELY VARIABLE)
    Measured from table surface 33.5″ (850MM)
    Weight of basic machine (8,636 KGS.)

    #L650 LIEBHERR UNIVERSAL GEAR HOBBER
    NEW 1975, SERIAL NO. 0655/13, MODEL L650

    SUITABLE FOR THE HOBBING OF STRAIGHT SPUR AND HELICAL GEARS, PINIONS, SPLINES, SPROCKETS, WORM GEARS, AND
    OTHER WORKPIECES OF SIMILAR PROFILE WITH DIAMETERS UP TO 25.6″ (650MM) X 2.5 DP (MODULE 10)

    EQUIPMENT / FEATURES:
    MACHINE BED WITH STATIONARY MACHINE COLUMN &
    ADJUSTABLE TABLE SLIDE, AUTO CLAMPING OF TABLE SLIDE
    DURING AXIAL HOBBING
    SINGLE-START INDEXING WORM DRIVE IN DUPLEX-SPECIAL
    EXECUTION, INDEXING WORM GEAR OF SPECIAL BRONZE
    STEADY COLUMN WITH HYDRAULIC ADJUSTABLE OVERHEAD WORK
    SUPPORT TO BE SWIVELED IN HIGHEST POSITION
    W/AUTO-CLAMPING IN WORK POSITION
    OVERHEAD TIE-BAR, HYDRAULICALLY SWIVELED
    W/AUTO-CLAMPING ON MAIN/AND STEADY COLUMN DURING
    AXIAL HOBBING
    HOB-SLIDE WITH INFINITELY VARIABLE FEED DRIVE
    MICROMETER FOR SETTING DEPTH ADJUSTMENT
    DIFFERENTIAL MECHANISM FOR HOBBING HELICAL GEARS
    DEVICE FOR HOBBING SPUR AND HELICAL GEARS, PRIME
    NUMBERED GEARS WITH CONSTANT RADIAL FEED
    SHIFTING TYPE HOB-HEAD FOR THE AUTOMATIC INTERMITTENT
    HOB SHIFT AFTER EACH HOBBING CYCLE, PRE-SELECTABLE
    IN BOTH DIRECTIONS
    AUTOMATIC TWO CUT CYCLE, W/FEED & SPEED CHANGE BETWEEN
    ROUGHING AND FINISHING CUTS
    COPY HOBBING “CROWNING” EQUIPMENT FOR PRODUCING
    CONVEX, CONCAVE, TAPERED, AND DOUBLE-TAPERED TOOTH
    FORMS WITH TEMPLATE
    HOLDER, AND ELECTRO-HYDRAULIC ACTUATED TEMPLATE
    follower
    HYDRAULIC CLAMPING DEVICE WITH INFINITELY VARIABLE
    CLAMPING PRESSURE UP TO 10,000 KP, MOUNTED WITHIN
    MACHINE TABLE FOR ACTUATING WORK-PIECE CLAMPING
    fixture
    HYDRAULIC RADIAL INFEED (INFINITELY VARIABLE)
    HYDRAULIC CLIMB HOBBING DEVICE FOR HOB SLIDE MOVEMENT
    TWO (2) HOB ARBORS, (1.25″ AND 2″ DIAMETER)
    ASSORTMENT OF CHANGE GEARS FOR DIFFERENTIAL AND INDEX
    MAGNETIC CHIP CONVEYOR
    AUTOMATIC PRESSURIZED CIRCULATING LUBRICATION SYSTEM
    W/CENTRAL LUBRICATION FOR THE MACHINE GUIDE-WAYS
    FULL COMPLEMENT OF ELECTRICS (MOTORS/CONTROLS)
    W/FREE-STANDING ELECTRICAL CABINET , WARD LEONARD
    GENERATOR UNIT.
    SELF CONTAINED HYDRAULIC EQUIPMENT WITHIN MACHINE
    MAIN COLUMN
    FULL GUARDS/COVERS
    MISC. WRENCHES, SPANNERS, OPERATOR’S TOOLS

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