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Type A American Standard Spindles
All power chucks are carefully designed and are built to provide
accurate repetitive workholding. Bodies are of steel with all
moving surfaces precision ground and all wearing surfaces
flame-hardened and ground. Internal parts are protected by
dust plates carefully fitted to the chuck face, thereby preventing
the entry of chips and dirt. Reliability combined with heavy
duty type performance enables these chucks to be used for
most types of workholding over a long, rugged, trouble-free
service life.
Note: Chucks listed below do not include top jaws. All chucks
in sizes 12" and larger are furnished with T-slots.
†To order chucks with Draw Tubes, change the
reference number as shown above each listing.
(Example: to order chuck number Y20-670-12-A06 with a
draw tube, change the refrence number to Y20-673-12-A06.)
Most of the chucks listed in this catalog are for direct
mounting on Type A American Standard Spindles. Other
chuck sizes and spindle seats are available on request.
Chucks with serrated master jaws are especially
recommended for production and chucking operations
where it is necessary to provide a wide range of jaw
capacity, and is achieved by “stepping" the top jaw along
the master jaw. One set of master jaw keys are furnished
with each chuck; top jaws are not included. Balanced to
eliminate vibration and chatter at high RPM.
