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Base jaws

for your jaw quick-change chucks

At SCHUNK, you will find the largest offering of base jaws for all lathe chuck types. In addition to the jaw interface with tongue and groove, SCHUNK also offers hardened, precision ground base jaws for the use of fine-serrated top jaws. If seamless clamping is not possible with your jaw quick-change chuck equipped with claw jaws, such clamping gaps can be covered, for example, with base jaws featuring ½-tooth offset.

The delivery unit comprises 1 set = 3 pieces , including cylindrical screws. With the exception of base jaws EWB-MT, which are supplied without cylindrical screws.

Our performance promise. Your benefits.

  • Tongue and groove and the ground bearing surface are ground. They ensure high dimensional accuracy and fast and simple handling.
  • A ground serration ensures high precision and surface quality of the base jaws as well as an increased service life.
  • Exchanging a clamping unit consisting of base and top jaw in the stationary chuck reduces set-up times.
  • Base jaws

    Base jaws

    At SCHUNK, you will find the largest offering of base jaws for all lathe chuck types. In addition to the jaw interface with tongue and groove, SCHUNK also offers hardened, precision ground base jaws for the use of fine-serrated top jaws. If seamless clamping is not possible with your jaw quick-change chuck equipped with claw jaws, such clamping gaps can be covered, for example, with base jaws featuring ½-tooth offset.
    The delivery unit comprises 1 set = 3 pieces , including cylindrical screws. With the exception of base jaws EWB-MT, which are supplied without cylindrical screws.
    Show series
    8705502
    Angled serration 
    Tongue and groove 
    20.0 mm
    159099
    Straight serration 
    Tongue and groove 
    18.0 mm
    8705289
    Angled serration 
    Tongue and groove 
    40.0 mm
    8705531
    Angled serration 
    Tongue and groove 
    20.0 mm
    814825
    Angled serration 
    Tongue and groove 
    26.0 mm
    159103
    Straight serration 
    Tongue and groove 
    26.0 mm
    814845
    Angled serration 
    Tongue and groove 
    30.0 mm
    157152
    Angled serration 
    Tongue and groove 
    20.0 mm
    157153
    Angled serration 
    Tongue and groove 
    26.0 mm
    160791
    Straight serration 
    Tongue and groove 
    20.0 mm