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Nup 228 Ecj; Nj 228 Ecj; Nu 228 Ecm Cylindrical Roller Bearings Steel Bar Hot Rolling Machine1
Cylindrical Roller Bearing, Cylindrical Roller Bearings, Mining Gearbox Cylindrical Roller Bearings
Luoyang Monton Bearing Science & Technology Co., Ltd.
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Product Description NameCylindrical roller bearingsSeiresN/NJ/NU/NUP/NN/NNU/SL ect.BrandMONTONModelNU 228 ECMd140mmD250mmB42mmLoad rating C450KNLoad rating Co510kNReference speed2800r/minLimiting speed3200r/minRing MaterialGcr15/ GCr15SiMn/20Cr2Ni4A/20Cr2MnMoACage MaterialBrass cage/Steel cageSealedas customer requestedWeight9.4KGRoller materailGcr15Design StructureCylindrical rollerPrecisionP4,P5 P6 or as customer requestedVibrationZV1, ZV2, ZV3, or as customer requestedClearanceC0, C2, C3, or as customer requestedQuality standardISO9001: 2000/SGSPackageCarton/Wooden caseOriginalLuoyangServiceOEMDelivery dateAccordinglyApplicationLarge and medium-sized electric motors, locomotives and vehicles, machine tool spindles, internal combustion engines, generators, paper machines, mining machinery, gas turbines, reducers, rolling mills, vibrating screens, and lifting and transportation machinery.Cylindrical Roller Bearings1. Structure and Characteristics Since the rollers of the cylindrical roller bearings make line contact with the raceways, these bearings can support heavy radial loads and are suitable for high speed operation.Assembly and disassembly are comparatively easy even if the inner or outer ring requires a shrink fit, as the bearing is a separation type.2.Cylindrical roller bearings are classified as single row, double row and four row type, according to how many rollers are used, and there are models as shown in Table 1 to 3. Although designed as a thin wall type, the SL Model double row cylindrical roller bearing can support enormous radial and impact loads. Table 4 lists the configurations available. Features and benefitsHigh load carrying capacityHigh stiffnessAccommodate axial displacement Low frictionLong service lifeEnhanced operational reliability
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