NSK, NTN, Koyo and NACHI to FULI Bearing Cross Reference

NTN, NSK, Koyo and NACHI to FULI cross reference: LLU, DDU, 2RS and 2NSE ball bearings, plus tapered roller 4T-, HR…J, JR and spherical EAD1, EAE4, RZ, EX.

NSK, NTN, Koyo and NACHI use the same basic numbers as FULI for 6000, 6200 and 6300 series deep groove ball bearings. The difference is in the suffix: each maker has its own code for shields and seals. This page maps those codes to FULI ZZ, 2RS and C3.

Suffix codes by maker

FULINSKNTNKoyoNACHI
Open (6205)6205620562056205
ZZ: shields both sidesZZZZZZZZE (older numbers: ZZ)
2RS: contact seals both sidesDDULLU2RS-2NSE (older numbers: -2NSL)
C3 (on request)6205DDUC36205LLUC3C3 after the seal code—
Not in FULI catalog: non-contact sealsVVLLB2RU-2NKE

Cross-sections of three deep groove ball bearings: a metal shield that stops short of the inner ring, labeled shield; a rubber seal whose lip touches the inner ring, labeled contact seal; and a rubber seal whose lip leaves a small gap to the inner ring, labeled non-contact seal

Koyo writes a space between the number and the suffix in its catalog, for example 6205 ZZ and 6205 2RS; the tables below keep that form. Koyo puts the clearance code after the seal code. NTN LLH (low-torque contact seal) and Koyo 2RD (light-contact seal) are not in the FULI catalog, so they are not matched to FULI 2RS. A dash (—) means we do not list a number for that cell; send us the number you have and we will check it.

Two open deep groove ball bearings seen from the front: on the left the top ball sits against the outer ring, labeled normal clearance; on the right a visible gap is drawn between the top ball and the outer ring, labeled larger clearance

Shielded bearings: FULI ZZ to NSK, NTN, Koyo, NACHI

Download this chart as a PDF with the sealed bearing table, the suffix codes by maker and our contact details.

FULId × D × B mm (FULI catalog)NSKNTNKoyoNACHI
6000ZZ10 × 26 × 86000ZZ6000ZZ6000 ZZ6000ZZE
6001ZZ12 × 28 × 86001ZZ6001ZZ6001 ZZ6001ZZE
6002ZZ15 × 32 × 96002ZZ6002ZZ6002 ZZ6002ZZE
6003ZZ17 × 35 × 106003ZZ6003ZZ6003 ZZ6003ZZE
6004ZZ20 × 42 × 126004ZZ6004ZZ6004 ZZ6004ZZE
6005ZZ25 × 47 × 126005ZZ6005ZZ6005 ZZ6005ZZE
6006ZZ30 × 55 × 136006ZZ6006ZZ6006 ZZ6006ZZE
6007ZZ35 × 62 × 146007ZZ6007ZZ6007 ZZ6007ZZE
6008ZZ40 × 68 × 156008ZZ6008ZZ6008 ZZ6008ZZE
6009ZZ45 × 75 × 166009ZZ6009ZZ6009 ZZ6009ZZE
6010ZZ50 × 80 × 166010ZZ6010ZZ6010 ZZ6010ZZE
6200ZZ10 × 30 × 96200ZZ6200ZZ6200 ZZ6200ZZE
6201ZZ12 × 32 × 106201ZZ6201ZZ6201 ZZ6201ZZE
6202ZZ15 × 35 × 116202ZZ6202ZZ6202 ZZ6202ZZE
6203ZZ17 × 40 × 126203ZZ6203ZZ6203 ZZ6203ZZE
6204ZZ20 × 47 × 146204ZZ6204ZZ6204 ZZ6204ZZE
6205ZZ25 × 52 × 156205ZZ6205ZZ6205 ZZ6205ZZE
6206ZZ30 × 62 × 166206ZZ6206ZZ6206 ZZ6206ZZE
6207ZZ35 × 72 × 176207ZZ6207ZZ6207 ZZ6207ZZE
6208ZZ40 × 80 × 186208ZZ6208ZZ6208 ZZ6208ZZE
6209ZZ45 × 85 × 196209ZZ6209ZZ6209 ZZ6209ZZE
6210ZZ50 × 90 × 206210ZZ6210ZZ6210 ZZ6210ZZE
6211ZZ55 × 100 × 216211ZZ6211ZZ6211 ZZ6211ZZE
6212ZZ60 × 110 × 226212ZZ6212ZZ6212 ZZ6212ZZE
6300ZZ10 × 35 × 116300ZZ6300ZZ6300 ZZ6300ZZE
6301ZZ12 × 37 × 126301ZZ6301ZZ6301 ZZ6301ZZE
6302ZZ15 × 42 × 136302ZZ6302ZZ6302 ZZ6302ZZE
6303ZZ17 × 47 × 146303ZZ6303ZZ6303 ZZ6303ZZE
6304ZZ20 × 52 × 156304ZZ6304ZZ6304 ZZ6304ZZE
6305ZZ25 × 62 × 176305ZZ6305ZZ6305 ZZ6305ZZE
6306ZZ30 × 72 × 196306ZZ6306ZZ6306 ZZ6306ZZE
6307ZZ35 × 80 × 216307ZZ6307ZZ6307 ZZ6307ZZE
6308ZZ40 × 90 × 236308ZZ6308ZZ6308 ZZ6308ZZE
6309ZZ45 × 100 × 256309ZZ6309ZZ6309 ZZ6309ZZE
6310ZZ50 × 110 × 276310ZZ6310ZZ6310 ZZ6310ZZE

Sealed bearings: FULI 2RS to NSK, NTN, Koyo, NACHI

FULId × D × B mm (FULI catalog)NSKNTNKoyoNACHI -2NSENACHI -2NSE9
6000-2RS10 × 26 × 86000DDU6000LLU6000 2RS6000-2NSE6000-2NSE9
6001-2RS12 × 28 × 86001DDU6001LLU6001 2RS6001-2NSE6001-2NSE9
6002-2RS15 × 32 × 96002DDU6002LLU6002 2RS6002-2NSE6002-2NSE9
6003-2RS17 × 35 × 106003DDU6003LLU6003 2RS6003-2NSE6003-2NSE9
6004-2RS20 × 42 × 126004DDU6004LLU6004 2RS6004-2NSE6004-2NSE9
6005-2RS25 × 47 × 126005DDU6005LLU6005 2RS6005-2NSE6005-2NSE9
6006-2RS30 × 55 × 136006DDU6006LLU6006 2RS6006-2NSE6006-2NSE9
6007-2RS35 × 62 × 146007DDU6007LLU6007 2RS6007-2NSE6007-2NSE9
6008-2RS40 × 68 × 156008DDU6008LLU6008 2RS6008-2NSE6008-2NSE9
6009-2RS45 × 75 × 166009DDU6009LLU6009 2RS6009-2NSE6009-2NSE9
6010-2RS50 × 80 × 166010DDU6010LLU6010 2RS6010-2NSE6010-2NSE9
6200-2RS10 × 30 × 96200DDU6200LLU6200 2RS6200-2NSE6200-2NSE9
6201-2RS12 × 32 × 106201DDU6201LLU6201 2RS6201-2NSE6201-2NSE9
6202-2RS15 × 35 × 116202DDU6202LLU6202 2RS6202-2NSE6202-2NSE9
6203-2RS17 × 40 × 126203DDU6203LLU6203 2RS6203-2NSE6203-2NSE9
6204-2RS20 × 47 × 146204DDU6204LLU6204 2RS6204-2NSE6204-2NSE9
6205-2RS25 × 52 × 156205DDU6205LLU6205 2RS6205-2NSE6205-2NSE9
6206-2RS30 × 62 × 166206DDU6206LLU6206 2RS6206-2NSE6206-2NSE9
6207-2RS35 × 72 × 176207DDU6207LLU6207 2RS6207-2NSE6207-2NSE9
6208-2RS40 × 80 × 186208DDU6208LLU6208 2RS6208-2NSE6208-2NSE9
6209-2RS45 × 85 × 196209DDU6209LLU6209 2RS6209-2NSE6209-2NSE9
6210-2RS50 × 90 × 206210DDU6210LLU6210 2RS6210-2NSE6210-2NSE9
6211-2RS55 × 100 × 216211DDU6211LLU6211 2RS6211-2NSEask us
6212-2RS60 × 110 × 226212DDU6212LLU6212 2RS6212-2NSEask us
6300-2RS10 × 35 × 116300DDU6300LLU6300 2RS6300-2NSE6300-2NSE9
6301-2RS12 × 37 × 126301DDU6301LLU6301 2RS6301-2NSE6301-2NSE9
6302-2RS15 × 42 × 136302DDU6302LLU6302 2RS6302-2NSE6302-2NSE9
6303-2RS17 × 47 × 146303DDU6303LLU6303 2RS6303-2NSE6303-2NSE9
6304-2RS20 × 52 × 156304DDU6304LLU6304 2RS6304-2NSE6304-2NSE9
6305-2RS25 × 62 × 176305DDU6305LLU6305 2RS6305-2NSE6305-2NSE9
6306-2RS30 × 72 × 196306DDU6306LLU6306 2RS6306-2NSE6306-2NSE9
6307-2RS35 × 80 × 216307DDU6307LLU6307 2RS6307-2NSE6307-2NSE9
6308-2RS40 × 90 × 236308DDU6308LLU6308 2RS6308-2NSE6308-2NSE9
6309-2RS45 × 100 × 256309DDU6309LLU6309 2RS6309-2NSE6309-2NSE9
6310-2RS50 × 110 × 276310DDU6310LLU6310 2RS6310-2NSE6310-2NSE9

Dimensions are from the FULI catalog. NSK, NTN, Koyo and NACHI numbers are from each maker’s catalog dimension tables. NACHI lists the sealed bearings in its current dimension table with a 9 after the seal code (for example 6205-2NSE9), so both forms are shown. “ask us” means we have not confirmed that number yet; send it to us and we will check it. Sources are listed at the end of the page.

Koyo and Timken

Koyo and Timken both use the plain ISO number for these bearings, so Koyo 6205 2RS and Timken 6205-2RS have the same boundary dimensions, 25 × 52 × 15 mm. For Timken suffixes, see the Timken to FULI cross reference.

NSK, NTN and Koyo mounted units

NTN adds D1 after the UC number, for example UC205D1 and UCP205D1. NSK also uses D1, and its full part numbers carry further suffixes, for example UCP205D1-X-AS3S. Koyo uses the plain numbers UCP205 and UC205. For UCP, UCF and UCFL units by size, see the pillow block bearing cross reference.

Worked example: NSK 6205DDU

NSK 6205DDU is 25 × 52 × 15 mm with contact seals on both sides. The FULI number is 6205-2RS; NTN writes the same bearing as 6205LLU, Koyo as 6205 2RS and NACHI as 6205-2NSE. See the 6205 bearing page for FULI dimensions; load ratings and speeds for the 6205 are still being checked against FULI’s catalog, so ask for them with the quote.

NSK, NTN, Koyo and NACHI roller bearing numbers

On tapered and spherical roller bearings, the letters around the basic number are design, cage, bore and lubrication codes, not seal codes. The meanings below are from each maker’s catalog listed in Sources.

Tapered roller bearings

FULINSKNTNKoyo
30205HR30205J4T-3020530205JR
30304HR30304J4T-30304A30304AJR
32212HR32212J32212U32212JR
  • NSK HR…J: HR is an NSK high-capacity series code. J means the outer ring raceway diameter, contact angle and outer ring width conform to ISO 355.
  • NTN 4T-: NTN’s prefix for its 4T tapered roller bearings. U, as in 32212U, marks an internationally interchangeable tapered roller bearing.
  • Koyo JR: Koyo uses J for bearings made to ISO 355. Some sizes carry -1, for example 30307JR-1; send us the full number and we will check it.
  • 30304: the cone width B (inner ring) is 15 mm at NSK and 16 mm at NTN and Koyo. Bore, outside diameter, total width and cup width match. If your fit depends on B, tell us which brand you are replacing.
  • We have not checked NACHI tapered roller numbers. Send us the NACHI number and we will check it.

All 18 tapered sizes are in the Timken tapered roller table.

Spherical roller bearings

FULINSKNTNKoyoNACHI
2220522205CE422205EAD122205RZ22205EX
2221022210EAE422210EAD122210RZ22210EX
2302223022CDE423022EAD123022RZ23022E
  • Design and cage codes. NSK puts a design code before E4: C for 22205 to 22207 (22205CE4), EA for 22208 to 22220 (22208EAE4) and CD for 23022 (23022CDE4). NTN EA has a pressed steel cage. Koyo RZ has a pressed steel cage. NACHI EX has symmetrical rollers and a pressed steel cage; NACHI E has a machined brass cage.
  • Oil groove and holes. NSK writes E4 and NTN writes D1. Koyo and NACHI add W33 (NACHI W20 means holes only).
  • Tapered bore. All four makers add K for a 1:12 tapered bore, for example NSK 22205CKE4, NTN 22205EAKD1, Koyo 22205RZK and NACHI 22205EXK. Ask us for the FULI tapered-bore version.

All 13 spherical sizes are in the spherical roller bearing table.

Send your NSK, NTN, Koyo or NACHI list

Paste the part numbers with full suffixes and quantities. We reply with the FULI number for each line, price and lead time. Email sales@fuli-bearings.com or use the contact form.

Other brands: SKF to FULI cross reference. All brands and suffixes: Bearing cross reference.

NSK, NTN, Koyo, NACHI, Timken and SKF are trademarks of their respective owners. FULI is not affiliated with, authorized by or endorsed by any of these companies. Part numbers are shown for interchange reference only. FULI dimensions, load ratings and speeds come from the FULI catalog.

Sources

  1. https://www.nsk.com/content/dam/nsk/common/catalogs/ctrgPdf/bearings/e1103b.pdf
  2. https://www.oss.nsk.com/6205dduc3-apn.html
  3. https://www.ntnbearing.in/catalog/2202E_all.pdf
  4. https://bearingfinder.ntnamericas.com/item/deep-groove-ball-bearings/single-row-radial-ball-bearings/6205lluc3
  5. https://koyo.jtekt.co.jp/en/support/catalog-download/uploads/catbs004en_a.pdf
  6. https://koyo.jtekt.co.jp/en/support/catalog-download/uploads/catbs004en_b.pdf
  7. https://nachi-tool.jp/bearing/pdf/Tech.pdf
  8. https://www.nachi-fujikoshi.co.jp/dcms_media/other/en_DimensionTable147-158.pdf
  9. https://www.nachi-bearings.de/media/2020-02-19_ne-20113_brg_dgbb_bro_en_web.pdf
  10. https://bearingfinder.ntnamericas.com/item/pillow-block-unit-with-set-screw/ow-block-unit-cast-housing-set-screw-ucp-ucpx-type/ucp205d1
  11. https://www.oss.nsk.com/products/bearing-units/pillow-block-bearing-units/ucp205d1-x-as3s.html
  12. https://koyo.jtekt.co.jp/en/support/catalog-download/uploads/catbs006en.pdf
  13. https://storage.googleapis.com/motion-industries/Live/Assets/Z875V2O/Documents/JTEKT_KOYO_NRB_CRD-22_Catalog.pdf
  14. https://www.nachi-bearings.de/media/2008-10-01_no-b1032e-5_brg_srb-catalogue_bro_en_web.pdf

FAQ

What is the FULI equivalent of NSK 6205DDU?

FULI 6205-2RS. NSK DDU means rubber contact seals on both sides. Both bearings are 25 × 52 × 15 mm.

NTN writes 6205LLU and 6205LLB. Are they the same?

No. NTN LLU is a contact seal and matches FULI 6205-2RS. NTN LLB is a non-contact seal; the FULI catalog does not list a non-contact seal, so send us the number and we will reply.

What does NACHI ZZE mean?

NACHI ZZE means shields on both sides (older NACHI numbers use ZZ). NACHI 6205ZZE matches FULI 6205ZZ.

What is the FULI equivalent of NTN 4T-30205 or NSK HR30205J?

FULI 30205. NTN 4T-30205, NSK HR30205J and Koyo 30205JR are the same size, 25 × 52 × 16.25 mm. The added letters are the makers' design codes, not seal codes.

How do I order a C3 version?

Add C3 to the FULI number, for example 6205-2RS C3. Radial clearance is C0 as standard and C3 on request.

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