Machinedtypeneedle bearingwithoutinnerrings TypesofDesigns: Thiskindofbearinghasmultiplestructuralstylesforthechoiceofcustomers,suchasnarrow&broadseries,withorwithoutinnerraces,cages,ribsorsealings.Itcanbedesignedaccordingtothespecialstructuralrequirementsofcustomersaswell. ProductPrecisionAccuracy: DimensionaltoleranceandgeometricalaccuracyisbasedonGB/T5801. Mutualdifferenceofneedlerollerdiameteris2μm,andtheprecisiongradeisG2(ISOGB309). ThediameterofinscribedcircleconformstotolerancegradeF6beforethefittingofouterringwithcageandrollerassembly. Bearingradialrunningclearanceconformstothevaluedefinedby0groupofGB/T4604. SpecialprecisiongradeisbasedonGB/T307.1 Forfullerinformationonthespecialrequirementsofbearingrunningclearance,inscribedcircleandprecisiongrade,pleasecontactthiscompany. Materials: MaterialforneedlerollerisGCr15bearingsteel,quench-hardeningHRC60---65. MaterialforinnerandouterracesisGCr15bearingsteel,quench-hardeningHRC61---65. Materialforcagesisqualitylow-carbonsteelorreinforcednylon. SpecialDirections: Bearingrunningclearanceandinner-cuttingroundnessshouldberegulatedaccordingtodifferentconditions. Machinetoolsshouldbeusedforpress-infittingorthermalfittingofthebearing Limitedbyplasticcages(suffixedwithTN)andsealing-elementmaterial,operatingtemperatureis-300C---+1000C. Forgeneral-dispositiondesignofbearings,refertotherelevantrecommendationintheappliedtechnologyofrollingbearings.NK5/10 NK22/16 NK50/25 NK5/12 NK22/20 NK50/35 NK6/10 NK24/16 NK55/25 NK6/12 NK24/20 NK55/35 NK7/10 NK25/16 NK60/25 NK7/12 NK25/20 NK60/35 NK8/12 NK25/25 NK68/25 NK8/16 NK25/30 NK68/35 NK9/12 NK26/16 NK73/25 NK9/16 NK26/20 NK73/35 NK10/12 NK28/20 NK75/25 NK10/16 NK28/30 NK75/35 NK12/12 NK29/20 NK80/25 NK12/16 NK29/30 NK80/35 NK14/16 NK30/30 NK85/25 NK14/20 NK35/30 NK85/35 NK15/16 NK37/20 NK90/35 NK15/20 NK37/30 NK95/26 NK16/16 NK38/20 NK95/36 NK16/20 NK38/30 NK100/30 NK17/16 NK40/20 NK100/36 NK17/20 NK40/30 NK105/26 NK18/16 NK42/20 NK105/36 NK18/20 NK42/30 NK110/30 NK19/16 NK43/20 NK110/40 NK19/20 NK43/30 NK115/12 NK20/16 NK45/20 NK115/15 NK20/20 NK45/30 NK120/40