Independent four-jaw chucks 7103


Lathe chucks with four independent jaws comply with GOST Standard 3890 and are designed for clamping and machining bar stock and irregularly shaped, non-symmetric, eccentric workpieces (castings, forgings, fittings, etc.) on lathes.

Chucks mounting on a lathe spindle is done in accordance with a chuck type.

Chucks are delivered with solid hardened jaws which after reinstallation can perform the function of both direct and reversible ones.

Material – steel.

Lathe chucks with four independent jaws are designed for clamping and processing workpieces during high-performance turning on screw-cutting lathes manufactured by “Ryazan Machine-Tool Plant”. A design feature of these chucks is a tooth rim on the back end of the chuck to drive the chuck.

Chuck 7103-0011B is installed on lathes model 165 and its modifications: 1A165, 1M165, 1N165, PT117, PT317, PT817 and their analogues.

Dimensions and specifications

Model/Chuck diameter D, mmChuck fixation typeSpindle nose sizeThe outer diameter of the connecting cone (girdle) A, mmMounting holes position diameter B, mmMounting holes diameter d, mmMounting holes number, nThrough-hole diameter D0, mmChuck body height H, mmJaw width b, mmGripping range, mmMaximum speed of rotation, min-1Chuck weight, kg

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