IPDB › China Industry › Industrial Equipment & Components › Bearing
Nu315ecm/C3vl0241 Threephase Motor Cylindrical Roller Bearing with Ceramic Rollers1
Angular Contact Ball Bearing, Insulated Insocoat Bearings, Insocoat Bearings
Luoyang Monton Bearing Science & Technology Co., Ltd.
Preview:
Product Description NameCurrent-Insulating BearingsBrandMONTONModelNU315ECM/C3VL0241d75mmD160mmD37mmRing MaterialGcr15/Special materailCage MaterialBrass cageLoad rating dynamic242KNLoad rating static270KNFatigue Limit Load Pu[kN]34Reference speed [r/min]4000Limiting speed [r/min]5300Sealedas customer requestedWeight3.9KGDesign StructureRollerPrecisionP5/P6 or as customer requestedVibrationZV1, ZV2, ZV3, or as customer requestedClearanceC0, C2, C3, or as customer requestedQuality standardISO9001: 2000/SGSPackagesingle boxOriginalLuoyangServiceOEMDelivery dateAccordinglyApplicationThreephase motor,Traction motor,Wind power generatorInsulated Insocoat bearingsElectric motors, generators and associated equipment are at risk when an electric current passes through their bearings. This can damage the contact surfaces of rolling elements and raceways in the bearings (electrical erosion) and rapidly degrade the grease. An additional risk in electric motors and generators comes from high frequency currents caused by the inherent stray capacitance. The risk of damage increases where the application uses a frequency converter.Insulated Insocoat bearings are designed to prevent electric current from passing through the bearing have the external surfaces of either their inner or outer ring coated with an insulating aluminium oxide layer, by applying a sophisticated plasma-spray process for an outstanding quality finish are a very cost-effective solution compared with other insulation methods.Electrical pitting often occurs in the use of rolling bearings in high power electromotor, wind turbine generator and rail vehicles motor systems and cause sparks that damage the rolling contact surface, ultimately lead to bearing failure.Electric insulated bearings therefore have been created and take the place of non-insulated bearings. we applies advanced surface modification process overlay a ceramic coating on the bearing ring, to insulate the electrical current flow into bearing substrate, so the electrical pitting is prevented and bearing's service life is extended.It is significantly more cost-effective to provide for the use of electrically insulated bearings at the planning stage. As a result, customer benefit is increased through reduced maintenance costs and higher machine availability.SAT series are the electrically insolated bearing products developed and marketed by us The insulation has a guaranteed breakdown resistance of at least 1000V AC or DC. We can also develop tailored modes for customer on types and precision levels, as well as higher electrical insulation.Bearing featuresProtection against electrical erosion With insulating properties integrated into the bearing, INSOCOAT bearings can improve reliability and increase machine uptime by virtually eliminating the problem of electrical erosion.High electrical resistance The aluminium oxide coating provides a minimum electrical resistance of 200 Ω and can withstand voltages up to 3 000 V DC.Consistent electrical performance Plasma-spray coatings are normally hygroscopic and, therefore, vulnerable to penetration caused by condensation. To protect against this effect, INSOCOAT bearings are treated with a unique sealant.Application of Insulated Bearings in Electric motors1. Causes and harm of motor shaft voltage and bearing current formationIn the operation of the motor, any imbalance in the phase currents in or around the rotor's magnetic circuit can produce a rotating system flux linkage.When the shaft rotates, these flux chains can generate a potential difference across the shaft. This potential difference is called the shaft voltage. The shaft voltage can excite a circulating current through a loop formed by the two ends of the bearing in the shaft and the casing (closed circuit), which is called the shaft current.In addition, the rotor core has more remanence, For a wound rotor motor, shaft voltage and shaft current are generated if two or more windings are short-circuited to the rotor core or the shaft. the bearing current is related to the structure of the motor, the power of the motor, the magnitude of the drive voltage, the rise time of the pulse, the length of the cable, etc. The larger the power of the motor, the higher the driving voltage, the steeper the rising edge of the driving voltage, and the shorter the cable, the larger the bearing current.2. How to block shaft current - use electrically insulated bearingsIn order to avoid damage to the bearing caused by the shaft current, effective measures should be taken to isolate the shaft current. For large motors with independent bearing housings at both ends, spacers made of insulating material can be placed between the bearing housing and the metal base. For a motor in which an ordinary bearing and a casing are integrated, an Electrically insulated bearing is generally used at one end thereof (often arranged at the non-spindle end).For high requirements, insulated bearings are installed at both ends. The insulating bearing used is generally a method of attaching (generally coating) an insulating layer to the outer ring. In some cases, the inner and outer rings are also provided with an insulating layer.Electrically insulated bearings avoid damage caused by electrical corrosion, so they are more reliable in operation than in conventional bearings. And compared to other insulation methods, such as shaft or housing insulation, etc. More cost effective and reliable. Insulated bearings have the same dimensions and basic technical features as non-insulated bearings Suitable for motors, generators, especially variable frequency motors.CoatMaster (China Bearing manufacturer), As the exprienced Electrically Insulated Bearing manufacturer of China, Not only produce insulated deep groove ball bearing, insulated cylindrical roller bearing, insulated tapered roller bearing, insulated angular contact ball bearing and the other type of insulated bearing, but also supply complete and expert solution for electric motor and the other applications where need insulated bearing. if you have problem make you distracted about the insulated bearing, just contact with our bearing technical team.DesignationPrincipal dimensionsBasic load ratingsFatique load limitSpeed ratingsMassdynamicstaticReference speedLimiting speeddDBCC0PummmmmmkNkNkNr/min kgNU1010ECP/C3VL024150801647,3577,29 5009 5000,27NU210ECM/C3VL024150902066729,157 5009 0000,48NU310ECM/C3VL0241501102711211615,36 0008 0001,35NU1011ECP/C3VL024155901857,269,598 50013 0000,4NU1011ECML/C3VL024155901857,269,598 50013 0000,45NU211ECM/C3VL0241551002185,810012,97 0008 0000,78NU311ECM/C3VL02415512029138146195 6007 0001,75NU1012ML/C3VL02416095183845,55,858 00013 0000,48NU1012ECP/C3VL024160951858,373,58,88 0008 0000,48NU212ECM/C3VL0241601102296,8106146 3007 5000,97NU312ECM/C3VL0241601303115116020,45 0006 7002,15NU1013ECP/C3VL0241651001862,781,510,67 5007 5000,45NU213ECM/C3VL02416512023110122165 6006 7001,25NU313ECM/C3VL0241651403318319625,54 8006 0002,65NU1014ECM/C3VL0241701102070,48510,87 0007 0000,69NU1014ECP/C3VL0241701102076,593127 0007 0000,62NU214ECM/C3VL0241701252412114018,65 3006 3001,35NU314ECM/C3VL02417015035209228294 3005 6003,1NU1015M/C3VL0241751152058,3719,36 7006 7000,75NU215ECM/C3VL0241751302513216021,25 3006 0001,5NU315ECM/C3VL02417516037242270344 0005 3003,9NU315ECP/VL02417516037242270344 0005 3003,9NU1016ECM/C3VL024180125229912716,36 0006 0001,05NU216ECM/C3VL02418014026142173224 8005 6001,85NU316ECM/C3VL02418017039264290363 8005 0004,6NU1017M/C3VL0241851302272,191,511,66 0006 0001,1NU217ECM/C3VL0241851502816820025,54 5005 3002,25NU317ECM/C3VL0241851804129734041,53 6004 8005,3NU1018M/C3VL0241901402485,811013,75 6005 6001,35NU218ECM/C3VL02419016030187224284 3005 0002,75NU318ECM/C3VL02419019043319360443 4004 5006,25NU1019ML/C3VL024195145248811614,35 3005 3001,4NU219ECM/C3VL0241951703222427033,54 0004 8002,85NU319ECM/C3VL0241952004534139046,53 2004 3007,25NU1020M/C3VL02411001502489,7122155 0005 0001,45NU220ECM/C3VL024110018034251310383 8004 5004NU320ECM/C3VL024110021547391440513 0003 8008,65NU1022M/C3VL02411101702813017320,84 5004 5002,3NU222ECM/C3VL024111020038297375443 4004 0005,6NU322ECM/C3VL024111024050468540612 6003 40012NU1024M/C3VL20711201802813819022,44 0004 0002,55NU224ECM/C3VL024112021540341440503 0003 6006,65NU324ECM/C3VL02411202605553962069,52 4003 20015NU1026M/C3VL207113020033168232273 8005 6003,85NU226ECM/C3VL207113023040369465522 8003 4007,6NU326ECM/C3VL20711302805862775081,52 2003 00018,5NU1028M/C3VL207114021033179255293 6003 6004,05NU228ECM/C3VL20711402504239652058,52 6003 2009NU328ECM/C3VL207114030062682830882 2002 80025NU1030M/C3VL207115022535194275183 2003 2004,9NU230ECM/C3VL20711502704545761065,52 4002 80012NU330ECM/C3VL2071150320657659501002 0002 60031
Purchasing Agent
Note: Send your message to supplier or manufacturer.
Welcome to our Professional and comprehensive procurement services...
Message:
OK ! We suggest you detail your product requirements and company information here.
Enter between 20 to 4,000 characters.
Your inquiry content must be between 20 to 4000 characters.