{"product_id":"bernardo-mandrino-a-cremagliera-per-hobby-140","title":"Bernardo Lathe Chuck with Rack for Hobby 140 Lathe","description":"\u003cp\u003eThe Bernardo Rack and Pinion Chuck for Hobby 140 Lathe is a professional lathe chuck available from Krollit, an official Bernardo distributor since 2007.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOriginal Bernardo accessory, designed and certified for the Hobby 140 lathe\u003c\/li\u003e\n\u003cli\u003eMount compatible with the Hobby 140 Lathe's tailstock via CM2 Morse taper\u003c\/li\u003e\n\u003cli\u003eMount type: CM2 Morse taper\u003c\/li\u003e\n\u003cli\u003eCompatibility: Bernardo Hobby 140 Lathe\u003c\/li\u003e\n\u003cli\u003eMaterial: Steel\u003c\/li\u003e\n\u003cli\u003eItem code: 03-1537\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho uses the Rack and Pinion Chuck for Hobby 140 Lathe and for what\u003c\/h3\u003e\n\u003cp\u003eMechanical workshops and artisan turners use the Rack and Pinion Chuck for Hobby 140 Lathe as a clamping accessory on metal lathes, ensuring secure locking and centering of the workpiece during turning, drilling, and grooving operations.\u003c\/p\u003e\n\u003ch3\u003eIts place in the Bernardo range\u003c\/h3\u003e\n\u003cp\u003eThe Bernardo Rack and Pinion Chuck for Hobby 140 Lathe is part of the Bernardo lathe chuck range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performance levels: to choose the right machine for your use case, you can consult the Bernardo catalog on Krollit or contact customer support for assistance with selection.\u003c\/p\u003e\n\u003ch3\u003eKrollit logistics and support\u003c\/h3\u003e\n\u003cp\u003eShipping 3-5 business days from Krollit warehouse for spare parts and accessories. Customer support in Italian available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.\u003c\/p\u003e\n\u003ch3\u003eWho is the Rack and Pinion Chuck for Hobby 140 Lathe for\u003c\/h3\u003e\n\u003cp\u003eThe rack and pinion chuck for the Hobby 140 lathe is recommended for the following professional profiles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical workshops and artisan turners\u003c\/strong\u003e: secure clamping of round or hexagonal workpieces on metal lathes during turning, drilling, and grooving operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsers with a Bernardo lathe with a compatible flange\u003c\/strong\u003e: original replacement or upgrade for Bernardo range lathes (profi, hobby, etc.) with A2 mount according to DIN 55029.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIrregular or non-round workpieces\u003c\/strong\u003e: for non-symmetrically centered workpieces, consider independent 4-jaw chucks or universal platforms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen to use this chuck?\u003c\/summary\u003e\n\u003cp\u003eIt is a self-centering chuck for clamping workpieces on a lathe during turning operations.\u003c\/p\u003e\n\u003cp\u003eSelf-centering chucks allow for quick clamping of the workpiece with a single key. The choice depends on the shape of the workpiece (cylindrical, square) and the body material (steel or cast iron).\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat material is the chuck body made of?\u003c\/summary\u003e\n\u003cp\u003eThe material is indicated in the title: steel (PO series) for maximum precision, cast iron (DK\/PS series) for standard use.\u003c\/p\u003e\n\u003cp\u003eThe choice depends on intensity of use and required tolerance: steel for production and precision, cast iron for general use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eFor which workpieces is the Ø 140 mm diameter suitable?\u003c\/summary\u003e\n\u003cp\u003eSuitable for small to medium workpieces (max Ø ~140 mm): bench lathes and artisan workshops.\u003c\/p\u003e\n\u003cp\u003eThe nominal diameter of the chuck indicates the maximum size of the body, not the machinable workpiece. The clamping capacity depends on the jaw opening (typically 60-70% of the nominal Ø).\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I check compatibility with my lathe?\u003c\/summary\u003e\n\u003cp\u003eCheck the type of mounting on the lathe spindle nose (Camlock D3-D15, or threaded mount M-) and the corresponding diameter.\u003c\/p\u003e\n\u003cp\u003eOn modern lathes, Camlock mounting is the most common. On older lathes, there may be a threaded (M-) or flanged mount. The lathe's technical documentation indicates the exact type.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is chuck precision maintained?\u003c\/summary\u003e\n\u003cp\u003eRegular cleaning of the spiral mechanism, periodic lubrication with specific chuck grease, concentricity check every 6 months with a dial indicator.\u003c\/p\u003e\n\u003cp\u003eA jaw that moves with difficulty indicates chips or rust in the mechanism: disassemble, clean, and grease. Concentricity is checked by mounting a rectified bar and measuring with a dial indicator: acceptable tolerance 0.03-0.1 mm depending on the model.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":51306966909256,"sku":"03-1537","price":46.8,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Bernardo_Mandrino_per_trapano_Hobby_140_Accessorio_originale.gif?v=1756994902","url":"https:\/\/www.krollit.com\/products\/bernardo-chuck-a-cremagliera-per-hobby-140","provider":"Krollit","version":"1.0","type":"link"}