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NNU Series Cylindrical Roller Bearings — Sizes & Specifications

1449 models in the NNU series, 360–505 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)
NNU4972KOYO360480118Cross-ref →
NNU4972NSK360480118Cross-ref →
NNU4972NTN360480118Cross-ref →
NNU4972-S-K-M-SPFAG360480118—
NNU4972/W33ANDGE360480118Cross-ref →
NNU4972B/W33SKF360480118—
NNU4972BK/W33FAG360480118Cross-ref →
NNU4972BK/W33SKF360480118Cross-ref →
NNU4972KANDGE360480118Cross-ref →
NNU4972KNTN360480118Cross-ref →
NNU4972KNSK360480118Cross-ref →
NNU4972K/W33ANDGE360480118Cross-ref →
NNU 4072 KM/W33SKF360540180—
NNU 4072 M/W33SKF360540180—
NNU 6072 MSKF360540325—
NNU 4172ANDGE360600243—
NNU 4172 K30MSKF360600243—
NNU 4172 MSKF360600243—
NNU 4172/W33ANDGE360600243—
NNU 4172K/W33ANDGE360600243—
NNU 4172K30/W33ANDGE360600243—
NNU 4172MANDGE360600243—
NNU4172-MFAG360600243—
NNU 4976X2-1F3/W33ANDGE379.8520150—
NNU 4876ANDGE380480100—
NNU 4876 K/W33SKF380480100—
NNU 4876/W33SKF380480100—
NNU 4976ANDGE380520140Cross-ref →
NNU 4976 B/DRW33SKF380520280—
NNU 4976 B/SPW33SKF380520140—
NNU 4976 BK/SPW33SKF380520140—
NNU 4976/W33ANDGE380520140Cross-ref →
NNU 4976BK/SPW33ANDGE380520140—
NNU 4976KANDGE380520140Cross-ref →
NNU 4976K/SPC1W33ANDGE380520140—
NNU 4976K/W33ANDGE380520140Cross-ref →
NNU 4976MANDGE380520140—
NNU 4976M/W33ANDGE380520140—
NNU4976ANDGE380520140Cross-ref →
NNU4976NSK380520140Cross-ref →
NNU4976NTN380520140Cross-ref →
NNU4976KOYO380520140Cross-ref →
NNU4976-S-K-M-SPFAG380520140—
NNU4976/W33ANDGE380520140Cross-ref →
NNU4976B/W33SKF380520140—
NNU4976BK/W33SKF380520140Cross-ref →
NNU4976BK/W33FAG380520140Cross-ref →
NNU4976KANDGE380520140Cross-ref →
NNU4976KNSK380520140Cross-ref →
NNU4976KNTN380520140Cross-ref →
NNU4976K/W33ANDGE380520140Cross-ref →
NNU 4076ANDGE380560180—
NNU 4076 KM/W33SKF380560180—
NNU 4076 M/W33SKF380560180—
NNU 6076 MSKF380560325—
NNU 4176ANDGE380620243—
NNU 4176 K30MSKF380620243—
NNU 4176 MSKF380620243—
NNU 4176/W33ANDGE380620243—
NNU 4176K30/W33ANDGE380620243—
NNU 4176MANDGE380620243—
NNU 4176M/C3ANDGE380620243—
NNU4176-MFAG380620243—
NNU 4880ANDGE400500100—
NNU 4880 K/W33SKF400500100—
NNU 4880/W33SKF400500100—
NNU 4980ANDGE400540140Cross-ref →
NNU 4980 B/SPW33SKF400540140—
NNU 4980 BK/SPW33SKF400540140—
NNU 4980/W33ANDGE400540140Cross-ref →
NNU 4980BK/P6W33ANDGE400540140—
NNU 4980BK/SPW33ANDGE400540140—
NNU 4980KANDGE400540140Cross-ref →
NNU 4980K/W33ANDGE400540140Cross-ref →
NNU 4980MANDGE400540140—
NNU4980KOYO400540140Cross-ref →
NNU4980ANDGE400540140Cross-ref →
NNU4980NTN400540140Cross-ref →
NNU4980NSK400540140Cross-ref →
NNU4980-S-K-M-SPFAG400540140—
NNU4980/W33ANDGE400540140Cross-ref →
NNU4980B/W33SKF400540140—
NNU4980BK/W33SKF400540140Cross-ref →
NNU4980BK/W33FAG400540140Cross-ref →
NNU4980KANDGE400540140Cross-ref →
NNU4980KNTN400540140Cross-ref →
NNU4980KNSK400540140Cross-ref →
NNU4980K/W33ANDGE400540140Cross-ref →
NNU 4080 F/W33SKF400600200—
NNU 4080 KF/W33SKF400600200—
NNU 4180 K30M/W33SKF400650250—
NNU 4180 M/W33SKF400650250—
NNU 4180/W33ANDGE400650250—
NNU 4180EMA/HCC9ANDGE400650250—
NNU 4180K30/W33ANDGE400650250—
NNU 4180M/C3ANDGE400650250—
NNU 4180M/HC/C3ANDGE400650250—
NNU 4180M/W33ANDGE400650250—
NNU 4180M/W33/HDANDGE400650250—
NNU 4180M/W33/P69/HV2ANDGE400650250—
NNU 4180M/W33C3ANDGE400650250—
NNU4180-MFAG400650250—
NNU 4180X3EMA/HCP63ANDGE400680270—
NNU 4884ANDGE420520100—
NNU 4884 K/W33SKF420520100—
NNU 4884/W33SKF420520100—
NNU 4984ANDGE420560140Cross-ref →
NNU 4984 B/SPW33SKF420560140—
NNU 4984 BK/SPW33SKF420560140—
NNU 4984/SPW33ANDGE420560140—
NNU 4984/W33ANDGE420560140Cross-ref →
NNU 4984BK/SPW33ANDGE420560140—
NNU 4984KANDGE420560140Cross-ref →
NNU 4984K/P52W33ANDGE420560140—
NNU 4984K/SPW33ANDGE420560140—
NNU 4984K/W33ANDGE420560140Cross-ref →
NNU 4984MANDGE420560140—
NNU 4984M/C3ANDGE420560140—
NNU 4984MK/W33ANDGE420560140—
NNU4984ANDGE420560140Cross-ref →
NNU4984NTN420560140Cross-ref →
NNU4984KOYO420560140Cross-ref →
NNU4984NSK420560140Cross-ref →
NNU4984-S-K-M-SPFAG420560140—
NNU4984/W33ANDGE420560140Cross-ref →
NNU4984B/W33SKF420560140—
NNU4984BK/W33SKF420560140Cross-ref →
NNU4984BK/W33FAG420560140Cross-ref →
NNU4984KNTN420560140Cross-ref →
NNU4984KANDGE420560140Cross-ref →
NNU4984KNSK420560140Cross-ref →
NNU4984K/W33ANDGE420560140Cross-ref →
NNU 4084ANDGE420620200—
NNU 4084 KM/W33SKF420620200—
NNU 4084 M/W33SKF420620200—
NNU 4084/C3YANDGE420620200—
NNU 4084/P63YANDGE420620200—
NNU 4084M/C3ANDGE420620200—
NNU 4184ANDGE420700280—
NNU 4184/316275SKF420700280—
NNU 4184/W33ANDGE420700280—
NNU 4184K30/W33ANDGE420700280—
NNU 4184M/W33ANDGE420700280—
NNU4184-MFAG420700280—
NNU 3284X2ANDGE420760280—
NNU 4184X1M/HCANDGE420760280—
NNU 4184X1M/HC-1ANDGE420760280—
NNU 4888ANDGE440540100—
NNU 4888 K/W33SKF440540100—
NNU 4888/W33ANDGE440540100Cross-ref →
NNU 4888/W33SKF440540100Cross-ref →
NNU 4888K/W33ANDGE440540100—
NNU 4988ANDGE440600160Cross-ref →
NNU 4988/W33ANDGE440600160Cross-ref →
NNU 4988KANDGE440600160Cross-ref →
NNU 4988K/W33ANDGE440600160Cross-ref →
NNU 4988MANDGE440600160—
NNU4988ANDGE440600160Cross-ref →
NNU4988NTN440600160Cross-ref →
NNU4988KOYO440600160Cross-ref →
NNU4988NSK440600160Cross-ref →
NNU4988-S-K-M-SPFAG440600160—
NNU4988/W33ANDGE440600160Cross-ref →
NNU4988B/W33SKF440600160—
NNU4988BK/W33SKF440600160Cross-ref →
NNU4988BK/W33FAG440600160Cross-ref →
NNU4988KANDGE440600160Cross-ref →
NNU4988KNSK440600160Cross-ref →
NNU4988KNTN440600160Cross-ref →
NNU4988K/W33ANDGE440600160Cross-ref →
NNU 4988X3ANDGE440640230—
NNU 6/440/HCANDGE440640230—
NNU 6/440/HC/C3ANDGE440640230—
NNU 6/440/HCW33ANDGE440640230—
NNU 6/440/HCYAANDGE440640230—
NNU 3088ANDGE440650157—
NNU 4088ANDGE440650212—
NNU 4088 KM/W33SKF440650212—
NNU 4088 M/W33SKF440650212—
NNU 4088/W33ANDGE440650212—
NNU 6088 MSKF440650375—
NNU 4188ANDGE440720280—
NNU 4188 K30M/W33SKF440720280—
NNU 4188 M/W33SKF440720280—
NNU 4188/W33ANDGE440720280—
NNU 4188F3/HAW33ANDGE440720280—
NNU 4188K30/W33ANDGE440720280—
NNU4188-MFAG440720280—
NNU 6/457ANDGE457660228—
NNU 4892ANDGE460580118—
NNU 4892 K/W33SKF460580118—
NNU 4892/W33ANDGE460580118Cross-ref →
NNU 4892/W33SKF460580118Cross-ref →
NNU 4892K/W33ANDGE460580118—
NNU4892ANDGE460580118—
NNU 3092X2N/YA5ANDGE460620160—
NNU 4992ANDGE460620160Cross-ref →
NNU 4992 B/SPW33SKF460620160—
NNU 4992 BK/SPW33SKF460620160—
NNU 4992/P5YA1ANDGE460620160—
NNU 4992/W33ANDGE460620160—
NNU 4992BK/SPW33ANDGE460620160—
NNU 4992KANDGE460620160Cross-ref →
NNU 4992K/P5W33ANDGE460620160—
NNU 4992K/W33ANDGE460620160—
NNU 4992MANDGE460620160—
NNU4992ANDGE460620160Cross-ref →
NNU4992NSK460620160Cross-ref →
NNU4992KOYO460620160Cross-ref →
NNU4992NTN460620160Cross-ref →
NNU4992-S-K-M-SPFAG460620160—
NNU4992/YA5ANDGE460620160—
NNU4992KANDGE460620160Cross-ref →
NNU4992KNTN460620160Cross-ref →
NNU4992KNSK460620160Cross-ref →
NNU 4092ANDGE460680218—
NNU 4092 KM/W33SKF460680218—
NNU 4092 M/W33SKF460680218—
NNU 4092/HCC3W33ANDGE460680218—
NNU 4092MANDGE460680218—
NNU 6092 MSKF460680400—
NNU 4192ANDGE460760300—
NNU 4192 K30MSKF460760300—
NNU 4192 MSKF460760300—
NNU 4192/W33ANDGE460760300Cross-ref →
NNU 4192K30/W33ANDGE460760300—
NNU 4192MANDGE460760300—
NNU4192-MFAG460760300—
NNU 3192X3M/HC/YA3ANDGE460800250—
NNU 4996ANDGE480650170Cross-ref →
NNU 4996/W33ANDGE480650170Cross-ref →
NNU 4996KANDGE480650170Cross-ref →
NNU 4996K/SPC1W33ANDGE480650170—
NNU 4996K/W33ANDGE480650170Cross-ref →
NNU 4996MANDGE480650170—
NNU4996ANDGE480650170Cross-ref →
NNU4996NTN480650170Cross-ref →
NNU4996KOYO480650170Cross-ref →
NNU4996NSK480650170Cross-ref →
NNU4996-S-K-M-SPFAG480650170—
NNU4996/W33ANDGE480650170Cross-ref →
NNU4996B/W33SKF480650170—
NNU4996BK/W33FAG480650170Cross-ref →
NNU4996BK/W33SKF480650170Cross-ref →
NNU4996KANDGE480650170Cross-ref →
NNU4996KNSK480650170Cross-ref →
NNU4996KNTN480650170Cross-ref →
NNU4996K/W33ANDGE480650170Cross-ref →
NNU 4096ANDGE480700218—
NNU 4096 KM/W33SKF480700218—
NNU 4096 M/W33SKF480700218—
NNU 4096/W33ANDGE480700218—
NNU 5096X2ANDGE480700260—
NNU 4196ANDGE480790308—
NNU 4196 K30M/W33SKF480790308—
NNU 4196 M/W33SKF480790308—
NNU 4196/W33ANDGE480790308—
NNU 4196K30/W33ANDGE480790308—
NNU4196-MFAG480790308—
NNU 48/500K/P51W33ANDGE500620118—
NNU59/500X3ANDGE500650130—
NNU 49/500ANDGE500670170Cross-ref →
NNU 49/500 B/SPW33XSKF500670170—
NNU 49/500 BK/SPW33XSKF500670170—
NNU 49/500/W33ANDGE500670170Cross-ref →
NNU 49/500BK/P6W33ANDGE500670170—
NNU 49/500F1/W33XANDGE500670170—
NNU 49/500KANDGE500670170Cross-ref →
NNU 49/500K/P5ANDGE500670170—
NNU 49/500K/P5W33ANDGE500670170—
NNU 49/500K/W33ANDGE500670170—
NNU 49/500K/W33XANDGE500670170—
NNU 49/500MANDGE500670170—
NNU 49/500X2F1YA34ANDGE500670160—
NNU49/500KOYO500670170Cross-ref →
NNU49/500NTN500670170Cross-ref →
NNU49/500ANDGE500670170Cross-ref →
NNU49/500NSK500670170Cross-ref →
NNU49/500-S-K-M-SPFAG500670170—
NNU49/500/W33ANDGE500670170Cross-ref →
NNU49/500B/W33SKF500670170—
NNU49/500KNTN500670170Cross-ref →
NNU49/500KNSK500670170Cross-ref →
NNU49/500KANDGE500670170Cross-ref →
NNU 30/500ANDGE500720167—
NNU 40/500ANDGE500720218—
NNU 40/500 KM/W33SKF500720218—
NNU 40/500 M/W33SKF500720218—
NNU 40/500/HCC3W33ANDGE500720218—
NNU 40/500/W33ANDGE500720218—
NNU 60/500EMC4ANDGE500720400—
NNU 41/500ANDGE500830325—
NNU 41/500 K30M/W33SKF500830325—
NNU 41/500 M/W33SKF500830325—
NNU 41/500/W33ANDGE500830325—
NNU 41/500K30/W33ANDGE500830325—
NNU Series 41/500/W33ANDGE500830325—
NNU41/500-MFAG500830325—
NNU 31/505X3ANDGE505820290—
NNU 6/505/HCC3ANDGE505820290—

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