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NNU Series Cylindrical Roller Bearings — Sizes & Specifications

1449 models in the NNU series, 240–360 mm bore. Every row links to the full specification page and to the cross-reference page of that model.

ModelBrandBore d (mm)OD D (mm)Width B (mm)
NNU 4948/P63W33ANDGE24032080—
NNU 4948/W33ANDGE24032080Cross-ref →
NNU 4948BK/SPW33ANDGE24032080—
NNU 4948K/SPC1W33ANDGE24032080—
NNU 4948K/W33ANDGE24032080Cross-ref →
NNU 4948K/W33P6ANDGE24032080—
NNU 4948MANDGE24032080—
NNU 4948M/W33ANDGE24032080—
NNU 4948M/W33C3ANDGE24032080—
NNU 6948 VSKF240320145—
NNU4948NSK24032080Cross-ref →
NNU4948NACHI24032080Cross-ref →
NNU4948NTN24032080Cross-ref →
NNU4948KOYO24032080Cross-ref →
NNU4948ANDGE24032080Cross-ref →
NNU4948-S-K-M-SPFAG24032080—
NNU4948/W33ANDGE24032080Cross-ref →
NNU4948B/W33SKF24032080—
NNU4948BK/W33FAG24032080Cross-ref →
NNU4948BK/W33SKF24032080Cross-ref →
NNU4948EAANDGE24032080—
NNU4948KNSK24032080Cross-ref →
NNU4948KNTN24032080Cross-ref →
NNU4948KANDGE24032080Cross-ref →
NNU4948K/W33ANDGE24032080Cross-ref →
NNU4948S.MFAG24032080—
NNU 4048ANDGE240360118—
NNU 6048 MSKF240360218—
NNU 6048 VSKF240360218—
NNU 4148ANDGE240400160—
NNU 4148 K30M/W33SKF240400160—
NNU 4148 M/W33SKF240400160—
NNU 4148/W33ANDGE240400160—
NNU 4148/YB2ANDGE240400160—
NNU 4148K30/W33ANDGE240400160—
NNU 4148M/W33ANDGE240400160—
NNU4148ANDGE240400160—
NNU4148-MFAG240400160—
NNU4148/YA5ANDGE240400160—
NNU4148KANDGE240400160—
NNU 4952KANDGE260340100Cross-ref →
NNU 4952ANDGE260360100Cross-ref →
NNU 4952 B/SPW33SKF260360100—
NNU 4952 BK/SPW33SKF260360100—
NNU 4952/C3W33-1ANDGE260360100—
NNU 4952/P64W33ANDGE260360100—
NNU 4952/W33ANDGE260360100Cross-ref →
NNU 4952/W33C3ANDGE260360100—
NNU 4952/W33P53ANDGE260360100—
NNU 4952/W33P6ANDGE260360100—
NNU 4952/W33YA4ANDGE260360100—
NNU 4952BK/SPW33ANDGE260360100—
NNU 4952K/P4ANDGE260360100—
NNU 4952K/P4-HSANDGE260360100—
NNU 4952K/SPC1W33ANDGE260360100—
NNU 4952K/W33ANDGE260360100Cross-ref →
NNU 4952MANDGE260360100—
NNU 4952X2/C4W33ANDGE260360100—
NNU 4952X2/C9W33ANDGE26036080—
NNU 6952 MSKF260360180—
NNU 6952 VSKF260360180—
NNU4952NACHI260360100Cross-ref →
NNU4952NTN260360100Cross-ref →
NNU4952ANDGE260360100Cross-ref →
NNU4952KOYO260360100Cross-ref →
NNU4952NSK260360100Cross-ref →
NNU4952-S-K-M-SPFAG260360100—
NNU4952/C3W33ANDGE260360100—
NNU4952/W33ANDGE260360100Cross-ref →
NNU4952B/W33SKF260360100—
NNU4952BK/W33SKF260360100Cross-ref →
NNU4952BK/W33FAG260360100Cross-ref →
NNU4952KNTN260360100Cross-ref →
NNU4952KNSK260360100Cross-ref →
NNU4952KANDGE260360100Cross-ref →
NNU4952K/W33ANDGE260360100Cross-ref →
NNU4952S.MFAG260360100—
NNU4952X2/W33XANDGE260360115—
NNU3952X3/C9ANDGE26037080—
NNU3952X3/P59S1ANDGE26037080—
NNU4952X3ANDGE260370110—
NNU 4052 KM/W33SKF260400140—
NNU 4052 M/W33SKF260400140—
NNU4052ANDGE260400140—
NNU 4152ANDGE260440180Cross-ref →
NNU 4152 K30M/W33SKF260440180—
NNU 4152 M/W33SKF260440180—
NNU 4152/W33ANDGE260440180—
NNU 4152K30/W33ANDGE260440180—
NNU 4152W33ANDGE260440180—
NNU4152-MFAG260440180—
NNU4152KANDGE260440180—
NNU44152ANDGE260440180—
NNU 4856ANDGE28035069—
NNU 4856 K/W33SKF28035069—
NNU 4856/W33SKF28035069—
NNU4856ANDGE28035069—
NNU4856KANDGE28035069—
NNU 4956ANDGE280380100Cross-ref →
NNU 4956 B/SPW33SKF280380100—
NNU 4956 BK/SPW33SKF280380100—
NNU 4956/C3ANDGE280380218—
NNU 4956/P5W33ANDGE280380100—
NNU 4956/W33ANDGE280380100Cross-ref →
NNU 4956BK/SPW33ANDGE280380100—
NNU 4956KANDGE280380100Cross-ref →
NNU 4956K/P4-HSANDGE280380100—
NNU 4956K/P52W33ANDGE280380100—
NNU 4956K/W33ANDGE280380100Cross-ref →
NNU 4956K/W33P5ANDGE280380100—
NNU 4956K/W33P6ANDGE280380100—
NNU 4956KW33ANDGE280380100Cross-ref →
NNU 4956MANDGE280380100—
NNU4956ANDGE280380100Cross-ref →
NNU4956NTN280380100Cross-ref →
NNU4956NSK280380100Cross-ref →
NNU4956NACHI280380100Cross-ref →
NNU4956KOYO280380100Cross-ref →
NNU4956-S-K-M-SPFAG280380100—
NNU4956/W33ANDGE280380100Cross-ref →
NNU4956B/W33SKF280380100—
NNU4956BK/W33FAG280380100Cross-ref →
NNU4956BK/W33SKF280380100Cross-ref →
NNU4956KNTN280380100Cross-ref →
NNU4956KANDGE280380100Cross-ref →
NNU4956KNSK280380100Cross-ref →
NNU4956K/W33ANDGE280380100Cross-ref →
NNU4956S.MFAG280380100—
NNU 3056ANDGE280420106Cross-ref →
NNU 4056ANDGE280420140—
NNU 4056 KM/W33SKF280420140—
NNU 4056 M/W33SKF280420140—
NNU 6056 MSKF280420250—
NNU4056ANDGE280420140—
NNU 4156ANDGE280460180—
NNU 4156 K30M/W33SKF280460180—
NNU 4156 M/W33SKF280460180—
NNU 4156/C9ANDGE280460180—
NNU 4156/P63YANDGE280460180—
NNU 4156/W33ANDGE280460180—
NNU 4156K30/W33ANDGE280460180—
NNU4156ANDGE280460180—
NNU4156-MFAG280460180—
NNU4156KANDGE280460180—
NNU 4156X3EMA/HCANDGE280480204—
NNU 4860ANDGE30038080—
NNU 4860 K/W33SKF30038080—
NNU 4860/W33SKF30038080—
NNU4860ANDGE30038080—
NNU4860KANDGE30038080—
NNU5960X3E/YAANDGE300400150—
NNU 4960ANDGE300420118Cross-ref →
NNU 4960 B/SPW33SKF300420118—
NNU 4960 BK/SPW33SKF300420118—
NNU 4960/C3W33ANDGE300420118—
NNU 4960/C9ANDGE300420118—
NNU 4960/SPW33ANDGE300420118—
NNU 4960/W33ANDGE300420118Cross-ref →
NNU 4960BK/SPW33ANDGE300420118—
NNU 4960KANDGE300420118Cross-ref →
NNU 4960K/W33ANDGE300420118Cross-ref →
NNU 4960K/W33P5ANDGE300420118—
NNU 4960KW33ANDGE300420118Cross-ref →
NNU 4960MANDGE300420118—
NNU4960ANDGE300420118Cross-ref →
NNU4960KOYO300420118Cross-ref →
NNU4960NTN300420118Cross-ref →
NNU4960NSK300420118Cross-ref →
NNU4960NACHI300420118Cross-ref →
NNU4960-S-K-M-SPFAG300420118—
NNU4960/W33ANDGE300420118Cross-ref →
NNU4960B/W33SKF300420118—
NNU4960BK/W33SKF300420118Cross-ref →
NNU4960BK/W33FAG300420118Cross-ref →
NNU4960KANDGE300420118Cross-ref →
NNU4960KNSK300420118Cross-ref →
NNU4960KNTN300420118Cross-ref →
NNU4960K/W33ANDGE300420118Cross-ref →
NNU4960S.MFAG300420118—
NNU 5960X3ANDGE300430150—
NNU 5960X3/C4W33ANDGE300430150—
NNU5960X3ANDGE300430150—
NNU5960X3/W33XANDGE300430150—
NNU 4060 KM/W33SKF300460160—
NNU 4060 M/W33SKF300460160—
NNU 4960K/SPC1W33ANDGE300460118—
NNU4060ANDGE300460160—
NNU 4160ANDGE300500200—
NNU 4160 K30M/W33SKF300500200—
NNU 4160 M/W33SKF300500200—
NNU 4160/W33ANDGE300500200—
NNU 4160MANDGE300500200—
NNU4160ANDGE300500200—
NNU4160-MFAG300500200—
NNU 4864ANDGE32040080—
NNU 4864 K/W33SKF32040080—
NNU 4864/W33SKF32040080—
NNU4864ANDGE32040080—
NNU4864KANDGE32040080—
NNU 4964ANDGE320440118Cross-ref →
NNU 4964 B/SPW33SKF320440118—
NNU 4964 BK/SPW33SKF320440118—
NNU 4964/W33ANDGE320440118Cross-ref →
NNU 4964/W33P6ANDGE320440118—
NNU 4964BK/SPW33ANDGE320440118—
NNU 4964KANDGE320440118Cross-ref →
NNU 4964K/C9W33ANDGE320440118—
NNU 4964K/P69W33ANDGE320440118—
NNU 4964K/W33ANDGE320440118Cross-ref →
NNU 4964K/W33P6ANDGE320440118—
NNU 4964KW33ANDGE320440118Cross-ref →
NNU 4964MANDGE320440118—
NNU 4964M/W33ANDGE320440118—
NNU 4964SMANDGE320440118—
NNU 4984K/W33P5ANDGE320440118—
NNU 49Series 64/W33ANDGE320440118—
NNU4964ANDGE320440118Cross-ref →
NNU4964NACHI320440118Cross-ref →
NNU4964NTN320440118Cross-ref →
NNU4964NSK320440118Cross-ref →
NNU4964KOYO320440118Cross-ref →
NNU4964-S-K-M-SPFAG320440118—
NNU4964/W33ANDGE320440118Cross-ref →
NNU4964B/W33SKF320440118—
NNU4964BK/W33SKF320440118Cross-ref →
NNU4964BK/W33FAG320440118Cross-ref →
NNU4964KANDGE320440118Cross-ref →
NNU4964KNTN320440118Cross-ref →
NNU4964KNSK320440118Cross-ref →
NNU4964K/W33ANDGE320440118Cross-ref →
NNU4964S.MFAG320440118—
NNU3064X3/C952YAANDGE320460120—
NNU 3064ANDGE320480130Cross-ref →
NNU 4064 KM/W33SKF320480160—
NNU 4064 M/W33SKF320480160—
NNU 4064X2ANDGE320480175—
NNU 6064 MSKF320480290—
NNU 6064X2ANDGE320480145—
NNU4064ANDGE320480160—
NNU4064X2ANDGE320480105—
NNU 4164ANDGE320540218—
NNU 4164 FSKF320540218—
NNU 4164 K30FSKF320540218—
NNU 4164/W33ANDGE320540218—
NNU 4164K30/W33ANDGE320540218—
NNU4164ANDGE320540218—
NNU4164-MFAG320540218—
NNU4164KANDGE320540218—
NNU 667M/TTANDGE335500366—
NNU 4868ANDGE34042080—
NNU 4868 K/W33SKF34042080—
NNU 4868/W33SKF34042080—
NNU4868ANDGE34042080—
NNU4868KANDGE34042080—
NNU 4968ANDGE340460118Cross-ref →
NNU 4968 B/SPW33SKF340460118—
NNU 4968 BK/SPW33SKF340460118—
NNU 4968/W33ANDGE340460118Cross-ref →
NNU 4968BK/SPW33ANDGE340460118—
NNU 4968BK/W33P61S0ANDGE340460118—
NNU 4968KANDGE340460118Cross-ref →
NNU 4968K/W33ANDGE340460118Cross-ref →
NNU 4968MANDGE340460118—
NNU4968ANDGE340460118Cross-ref →
NNU4968NSK340460118Cross-ref →
NNU4968KOYO340460118Cross-ref →
NNU4968NTN340460118Cross-ref →
NNU4968-S-K-M-SPFAG340460118—
NNU4968/W33ANDGE340460118Cross-ref →
NNU4968B/W33SKF340460118—
NNU4968BK/W33SKF340460118Cross-ref →
NNU4968BK/W33FAG340460118Cross-ref →
NNU4968EAANDGE340460118Cross-ref →
NNU4968KANDGE340460118Cross-ref →
NNU4968KNTN340460118Cross-ref →
NNU4968KNSK340460118Cross-ref →
NNU4968K/W33ANDGE340460118Cross-ref →
NNU 3068ANDGE340520133—
NNU 4068 KM/W33SKF340520180—
NNU 4068 M/W33SKF340520180—
NNU 4068S.M/C3ANDGE340520180—
NNU 664/P59S1YAANDGE340520133—
NNU 664/P5C9ANDGE340520133—
NNU 4168 K30M/W33SKF340580243—
NNU 4168 M/W33SKF340580243—
NNU 4168/W33ANDGE340580243—
NNU 4168K30/W33ANDGE340580243—
NNU4168-MFAG340580243—
NNU4970ANDGE350500190—
NNU 4972ANDGE360480118Cross-ref →
NNU 4972 B/SPW33SKF360480118—
NNU 4972 BK/SPW33SKF360480118—
NNU 4972/W33ANDGE360480118Cross-ref →
NNU 4972BK/SPW33ANDGE360480118—
NNU 4972KANDGE360480118Cross-ref →
NNU 4972K/P5ANDGE360480118—
NNU 4972K/SPW33ANDGE360480118—
NNU 4972K/W33ANDGE360480118Cross-ref →
NNU 4972MANDGE360480118—
NNU4972ANDGE360480118Cross-ref →

About the NNU series

NNU series bearings follow the ISO dimension plan for this family, so a given number is dimensionally interchangeable between brands - see the cross-reference to confirm. Choose the suffix for your duty: shields for dry, clean positions, contact seals for wet or dusty ones, and a larger clearance class where the fit or temperature demands it.

Other Cylindrical Roller Bearings series: NU · NJ · N · NUP · NN · FC · LSE · NF