Three-jaw manual self-centering chucks Ø 250-500 mm

Description

These chucks are meant for mounting on conventional and special lathes.
Chuck design secures high-pressure force transfer with much less vise grip wrench torque in comparison with concentric jaw chucks. Wedge-strip chucks have high wear resistance and long lifetime, stability in reaching of high centering accuracy of workpieces. Chucks are made on a basis of a hardened steel case, and include hardened jaws set.
Under the customer request chucks are packaged with additional set of soft jaws and intermediate jaws for specific setups with them. Hardened chucks function as direct  and reverse jaws when realignment.
 

Dimensions and specifications

Model/Chuck diameter D, mmChuck fixation typeSpindle nose sizeThe outer diameter of the connecting cone (girdle) D1, mmMounting holes position diameter D2, mmMounting holes number n / diameter, n x d, mmThrough-hole diameter D0, mmHeight of chuck without jaws H, mmGripping range, mmWorking jaw stroke, mmMaximum torque on the key, НмThe total clamping force in the jaws, кНMaximum speed of rotation, min-1Chuck weight, kg
PR-250.65.J6/250J6106,375133,44xМ12651065-245818090300036
PR-250.65.К6/250K6106,375133,46x14651165-245818090300036
PR-250.65.J8/250J8139,719171,44xМ16651065-245818090300036
PR-250.65.К8/250K8139,719171,46x18651165-245818090300036
PR-250.65.С210/250C-210х52263xМ12651065-245818090300036
PR-250.65.С200/250С*-200х52246хМ12651065-245818090300036
PR-400.120.J8/400J8139,719171,44xМ1612013819-374122251401800115
PR-400.120.К8/400K8139,719171,46x1812014819-374122251401800115
PR-400.120.J11/400J11196,8692356xМ2012013819-374122251401800115
PR-400.120.К11/400K11196,8692356x2212015319-374122251401800115
PR-400.120.C340/400C-340х63683xМ1612013819-374122251401800115
PR-400.120.C330/400С*-330х53626хМ1612013819-374122251401800115
PR-500.180.J8/500J8139,719171,44xМ1613614353-475162501601300180
PR-500.180.К8/500K8139,719171,46x1813615353-475162501601300180
PR-500.180.J11/500J11196,8692356xМ2018014353-475162501601300180
PR-500.180.К11/500K11196,8692356x2218015353-475162501601300180
PR-500.180.J15/500J15285,775330,26xМ2418014853-475162501601300180
PR-500.180.K15/500K15285,775330,26x2618015853-475162501601300180
PR-500.180.C440/500C-440х84656xМ1618014353-475162501601300180
PR-500.180.C420/500С*-420х54586хМ1618014353-475162501601300180
C* - with mounting to the spindle via the DIN 6350 transition flange

Comparison table for manual lathe chucks

GOST 2675-80 JSC “BZSP” GOST 2675-80 JSC “BZSP”
7100-0011  PR 315.85.С270 (ц) 7100-0044  PR 400.120.J8 (с)
7100-0012  PR 315.85.С270 (с) 7100-0045  PR 400.120.J11 (ц)
7100-0015  PR 400.120.С340 (ц) 7100-0046  PR 400.120.J11 (с)
7100-0016  PR 400.120.С340 (с) 7100-0047  PR 500.180.J8 (ц)
7100-0017  PR 500.180.С440 (ц) 7100-0048  PR 500.180.J8 (с)
7100-0018  PR 500.180.С440 (с) 7100-0049  PR 500.180.J11 (ц)
7100-0035  PR 250.65.J6 (ц) 7100-0050  PR 500.180.J11 (с)
7100-0036  PR 250.65.J6 (с) 7100-0061  PR 250.65.К6 (ц)
7100-0037 PR 250.65.J8 (ц) 7100-0062  PR 250.65.К6 (с)
7100-0038  PR 250.65.J8 (с) 7100-0063  PR 315.85.К6 (ц)
7100-0039  PR 315.85.J6 (ц) 7100-0064  PR 315.85.К6 (с)
7100-0040  PR 315.85.J6 (с) 7100-0065  PR 400.120.К8 (ц)
7100-0041  PR 315.85.J8 (ц) 7100-0066  PR 400.120.К8 (с)
7100-0042 PR 315.85.J8 (с) 7100-0067  PR 500.180.К11 (ц)
7100-0043  PR 400.120.J8 (ц) 7100-0068  PR 500.180.К11 (с)
*ц - one-piece jaw; с - prefabricated jaw

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