{"product_id":"bernardo-smerigliatrice-cilindrica-urs-500-n","title":"Bernardo Universal Cylindrical Grinder URS 500 N","description":"\u003cp\u003e\u003cstrong\u003eBernardo URS 500 N Universal Cylindrical Grinding Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Bernardo URS 500 N Universal Cylindrical Grinding Machine is a precision machine designed for external and internal grinding operations on workpieces up to 500 mm in length and 200 mm in diameter. Equipped with longitudinal and transverse guides featuring a V- and flat guide combination, it ensures smooth operation and high precision. The main spindle is hydrodynamically mounted: an oil film eliminates direct contact with the bearings, minimizing vibrations and extending lifespan. The table is inclinable from +3° to -9° for conical grinding and features manual or hydraulic feed with continuous speed adjustment (0.1–4 m\/min). The Ø 400 mm external grinding wheel operates at 1670 rpm, while the internal unit reaches 20,000 rpm. With a robust structure, thick reinforcements, and balanced components, the URS 500 N guarantees thermal stability, high productivity, and excellent grinding results.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003cbr\u003eExternal grinding Ø 8–200 mm and internal Ø 13–100 mm\u003cbr\u003eDistance between centers 500 mm, center height 135 mm\u003cbr\u003eHydrodynamic oil film main spindle to eliminate vibrations\u003cbr\u003eTable inclinable from +3° to -9° for conical operations\u003cbr\u003eManual or hydraulic longitudinal table feed, adjustable 0.1–4 m\/min\u003cbr\u003eInternal grinding up to 20,000 rpm, external with Ø 400 mm grinding wheel at 1670 rpm\u003cbr\u003eGrinding head inclinable ±30°, grinding wheel travel 200 mm\u003cbr\u003eES-12 H 2-axis digital display included\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBernardo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eURS 500 N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDistance between centers\u003c\/td\u003e\n\u003ctd\u003e500 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCenter height\u003c\/td\u003e\n\u003ctd\u003e135 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal grinding diameter\u003c\/td\u003e\n\u003ctd\u003e8 – 200 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum workpiece weight\u003c\/td\u003e\n\u003ctd\u003e60 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal grinding diameter\u003c\/td\u003e\n\u003ctd\u003e13 – 100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum internal grinding depth\u003c\/td\u003e\n\u003ctd\u003e125 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTable inclination\u003c\/td\u003e\n\u003ctd\u003e+3° to -9°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum longitudinal table travel\u003c\/td\u003e\n\u003ctd\u003e600 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTable feed\u003c\/td\u003e\n\u003ctd\u003e0.1 – 4 m\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual table feed\u003c\/td\u003e\n\u003ctd\u003e6 mm\/revolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorkpiece spindle speed\u003c\/td\u003e\n\u003ctd\u003e25 – 220 rpm (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorkpiece spindle taper\u003c\/td\u003e\n\u003ctd\u003eMT 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle inclination\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal grinding wheel\u003c\/td\u003e\n\u003ctd\u003eØ 400 x 50 x 203 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal grinding wheel speed\u003c\/td\u003e\n\u003ctd\u003e1670 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal grinding speed\u003c\/td\u003e\n\u003ctd\u003e20,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrinding head inclination\u003c\/td\u003e\n\u003ctd\u003e±30°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrinding head travel\u003c\/td\u003e\n\u003ctd\u003e200 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScale reading\u003c\/td\u003e\n\u003ctd\u003e0.005 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTailstock\u003c\/td\u003e\n\u003ctd\u003eMT 4, travel 35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrinding wheel motor power\u003c\/td\u003e\n\u003ctd\u003e4.0 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle motor power\u003c\/td\u003e\n\u003ctd\u003e0.75 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMachine dimensions (L x W x H)\u003c\/td\u003e\n\u003ctd\u003e2150 x 1450 x 1700 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2170 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eStandard equipment\u003c\/h3\u003e\u003cbr\u003eES-12 H 2-axis digital display\u003cbr\u003eØ 400 mm grinding wheel\u003cbr\u003eGrinding wheel flange\u003cbr\u003eØ 200 mm 3-jaw self-centering chuck\u003cbr\u003eFrequency inverter\u003cbr\u003eFixed and traveling steady rests\u003cbr\u003eInternal grinding device\u003cbr\u003eLED work light\u003cbr\u003eBalancing stand and arbor\u003cbr\u003e2 tailstocks\u003cbr\u003eCooling system with splash guard\u003cbr\u003eGrinding wheel dresser\u003cbr\u003eWorkpiece holder\u003cbr\u003eService tools\n\n\u003ch3\u003eLogistics\u003c\/h3\u003e\n\u003cp\u003eBernardo shipping: 5–9 business days (7 days in the South). Original spare parts available with 3–5 business days shipping. Customer service in Italian available.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is a hydrodynamic spindle and why is it important?\u003c\/summary\u003e\n\u003cp\u003eThe hydrodynamic spindle supports the shaft on an oil film instead of rolling bearings. This eliminates micro-vibrations that are transmitted to the ground surface as ripples, guaranteeing dimensional tolerances of IT5–IT6 and surface roughness of Ra 0.2–0.4 µm. It is the standard for industrial precision grinding machines — versions with rolling bearings are cheaper but cannot achieve the same tolerances.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between URS 500 N and URS 800\/1000\/1500\/2000\/3000 N?\u003c\/summary\u003e\n\u003cp\u003eAll URS N models share the same construction principle (hydrodynamic spindle, grinding head inclinable ±30°, internal grinding). They differ in distance between centers: URS 500 N (500 mm), URS 800 N (800 mm), URS 1000 N (1000 mm), URS 1500 N (1500 mm), etc. The choice depends on the maximum length of the workpieces to be ground.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat coolant should I use?\u003c\/summary\u003e\n\u003cp\u003eFor cylindrical grinding: 3–5% water+soluble oil emulsion for standard steel; neat grinding oil for high-strength tool steels; dry cutting for cast iron (produces natural lubricating graphite). The cooling system of the Bernardo Cylindrical Grinder is integrated.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs internal grinding possible on the Bernardo Cylindrical Grinder?\u003c\/summary\u003e\n\u003cp\u003eYes. The grinding head of the Bernardo Cylindrical Grinder also supports internal grinding with a high-speed spindle — check the internal grinding speed and minimum diameter in the technical table.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre spare parts available?\u003c\/summary\u003e\n\u003cp\u003eOriginal spare parts available with 3–5 business days shipping. Customer service in Italian available.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":50695972946248,"sku":"05-1370","price":30528.65,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Bernardo_URS_500_N_Smerigliatrice_cilindrica_universale_con_DRO.jpg?v=1758612477","url":"https:\/\/www.krollit.com\/products\/bernardo-grinder-cilindrica-urs-500-n","provider":"Krollit","version":"1.0","type":"link"}