Made in China Japan-managed QC 100% outgoing inspection

NSK · NTN · Koyo · NACHI equivalents

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

Convert NSK, NTN, Koyo and NACHI deep groove ball bearing numbers to ENRO. NSK 6205DDU, NTN 6205LLU, Koyo 6205 2RS and NACHI 6205-2NSE all translate to ENRO 6205-2RS: 25 × 52 × 15 mm, dimensionally interchangeable. The tables cover the 35 sizes from 6000 to 6310 that ENRO lists.

Request a Quote Find by size

ENRO sizes in tables35

Series60 · 62 · 63

BrandsNSK · NTN · Koyo · NACHI

Match basisd · D · B

Suffixes

One bearing, four ways to write it

The match is by boundary dimensions only: bore d, outside diameter D and width B. Boundary dimensions follow the ISO 15 dimension series. Open bearings are the easy part: NSK, NTN, Koyo and NACHI all write the bare base number, 6205, the same as ENRO. The differences start with the shield and seal codes.

Shield, seal and clearance codes on 6205 for each maker and for ENRO
Maker	Shields both sides	Contact seals both sides	Other seal codes you may see	Where C3 goes
NSK	6205ZZ	6205DDU	VV (non-contact)	After the seal code: 6205DDUC3
NTN	6205ZZ	6205LLU	LLB (non-contact), LLH (low torque)	After the seal code: 6205LLUC3
Koyo	6205 ZZ	6205 2RS	2RU (non-contact), 2RD (very light contact)	After the seal code
NACHI	6205ZZE	6205-2NSE	-2NKE (non-contact), -2NSE9 (newer contact seal)	After the suffix, for example 6204ZZE C3
ENRO	6205-ZZ	6205-2RS	—	After the number: 6205-2RS C3

Only the contact seals (DDU, LLU, 2RS, -2NSE and -2NSE9) map to ENRO 2RS. The non-contact and low-torque seals in the fourth column are different designs. ENRO does not list them as separate codes, so send those numbers as written and we will tell you what we can supply.

Cross reference table

Shielded bearings: NSK, NTN, Koyo and NACHI to ENRO -ZZ (35 sizes)

All four makers use ZZ for a shield on both sides. Koyo writes a space before the suffix and NACHI adds an E; the size is the same.

ENRO	d × D × B (mm)	NSK	NTN	Koyo	NACHI
6000 / 6000-ZZ / 6000-2RS	10 × 26 × 8	6000ZZ	6000ZZ	6000 ZZ	6000ZZE
6001 / 6001-ZZ / 6001-2RS	12 × 28 × 8	6001ZZ	6001ZZ	6001 ZZ	6001ZZE
6002 / 6002-ZZ / 6002-2RS	15 × 32 × 9	6002ZZ	6002ZZ	6002 ZZ	6002ZZE
6003 / 6003-ZZ / 6003-2RS	17 × 35 × 10	6003ZZ	6003ZZ	6003 ZZ	6003ZZE
6004 / 6004-ZZ / 6004-2RS	20 × 42 × 12	6004ZZ	6004ZZ	6004 ZZ	6004ZZE
6005 / 6005-ZZ / 6005-2RS	25 × 47 × 12	6005ZZ	6005ZZ	6005 ZZ	6005ZZE
6006 / 6006-ZZ / 6006-2RS	30 × 55 × 13	6006ZZ	6006ZZ	6006 ZZ	6006ZZE
6007 / 6007-ZZ / 6007-2RS	35 × 62 × 14	6007ZZ	6007ZZ	6007 ZZ	6007ZZE
6008 / 6008-ZZ / 6008-2RS	40 × 68 × 15	6008ZZ	6008ZZ	6008 ZZ	6008ZZE
6009 / 6009-ZZ / 6009-2RS	45 × 75 × 16	6009ZZ	6009ZZ	6009 ZZ	6009ZZE
6010 / 6010-ZZ / 6010-2RS	50 × 80 × 16	6010ZZ	6010ZZ	6010 ZZ	6010ZZE
6200 / 6200-ZZ / 6200-2RS	10 × 30 × 9	6200ZZ	6200ZZ	6200 ZZ	6200ZZE
6201 / 6201-ZZ / 6201-2RS	12 × 32 × 10	6201ZZ	6201ZZ	6201 ZZ	6201ZZE
6202 / 6202-ZZ / 6202-2RS	15 × 35 × 11	6202ZZ	6202ZZ	6202 ZZ	6202ZZE
6203 / 6203-ZZ / 6203-2RS	17 × 40 × 12	6203ZZ	6203ZZ	6203 ZZ	6203ZZE
6204 / 6204-ZZ / 6204-2RS	20 × 47 × 14	6204ZZ	6204ZZ	6204 ZZ	6204ZZE
6205 / 6205-ZZ / 6205-2RS	25 × 52 × 15	6205ZZ	6205ZZ	6205 ZZ	6205ZZE
6206 / 6206-ZZ / 6206-2RS	30 × 62 × 16	6206ZZ	6206ZZ	6206 ZZ	6206ZZE
6207 / 6207-ZZ / 6207-2RS	35 × 72 × 17	6207ZZ	6207ZZ	6207 ZZ	6207ZZE
6208 / 6208-ZZ / 6208-2RS	40 × 80 × 18	6208ZZ	6208ZZ	6208 ZZ	6208ZZE
6209 / 6209-ZZ / 6209-2RS	45 × 85 × 19	6209ZZ	6209ZZ	6209 ZZ	6209ZZE
6210 / 6210-ZZ / 6210-2RS	50 × 90 × 20	6210ZZ	6210ZZ	6210 ZZ	6210ZZE
6211 / 6211-ZZ / 6211-2RS	55 × 100 × 21	6211ZZ	6211ZZ	6211 ZZ	6211ZZE
6212 / 6212-ZZ / 6212-2RS	60 × 110 × 22	6212ZZ	6212ZZ	6212 ZZ	6212ZZE
6300 / 6300-ZZ / 6300-2RS	10 × 35 × 11	6300ZZ	6300ZZ	6300 ZZ	6300ZZE
6301 / 6301-ZZ / 6301-2RS	12 × 37 × 12	6301ZZ	6301ZZ	6301 ZZ	6301ZZE
6302 / 6302-ZZ / 6302-2RS	15 × 42 × 13	6302ZZ	6302ZZ	6302 ZZ	6302ZZE
6303 / 6303-ZZ / 6303-2RS	17 × 47 × 14	6303ZZ	6303ZZ	6303 ZZ	6303ZZE
6304 / 6304-ZZ / 6304-2RS	20 × 52 × 15	6304ZZ	6304ZZ	6304 ZZ	6304ZZE
6305 / 6305-ZZ / 6305-2RS	25 × 62 × 17	6305ZZ	6305ZZ	6305 ZZ	6305ZZE
6306 / 6306-ZZ / 6306-2RS	30 × 72 × 19	6306ZZ	6306ZZ	6306 ZZ	6306ZZE
6307 / 6307-ZZ / 6307-2RS	35 × 80 × 21	6307ZZ	6307ZZ	6307 ZZ	6307ZZE
6308 / 6308-ZZ / 6308-2RS	40 × 90 × 23	6308ZZ	6308ZZ	6308 ZZ	6308ZZE
6309 / 6309-ZZ / 6309-2RS	45 × 100 × 25	6309ZZ	6309ZZ	6309 ZZ	6309ZZE
6310 / 6310-ZZ / 6310-2RS	50 × 110 × 27	6310ZZ	6310ZZ	6310 ZZ	6310ZZE

Dimensions are from the ENRO catalogue.

Cross reference table

Sealed bearings: NSK, NTN, Koyo and NACHI to ENRO -2RS (35 sizes)

Here the four makers use four different codes for a contact seal on both sides. Each of them becomes 2RS on an ENRO order.

ENRO	d × D × B (mm)	NSK DDU	NTN LLU	Koyo 2RS	NACHI -2NSE	NACHI -2NSE9
6000 / 6000-ZZ / 6000-2RS	10 × 26 × 8	6000DDU	6000LLU	6000 2RS	6000-2NSE	6000-2NSE9
6001 / 6001-ZZ / 6001-2RS	12 × 28 × 8	6001DDU	6001LLU	6001 2RS	6001-2NSE	6001-2NSE9
6002 / 6002-ZZ / 6002-2RS	15 × 32 × 9	6002DDU	6002LLU	6002 2RS	6002-2NSE	6002-2NSE9
6003 / 6003-ZZ / 6003-2RS	17 × 35 × 10	6003DDU	6003LLU	6003 2RS	6003-2NSE	6003-2NSE9
6004 / 6004-ZZ / 6004-2RS	20 × 42 × 12	6004DDU	6004LLU	6004 2RS	6004-2NSE	6004-2NSE9
6005 / 6005-ZZ / 6005-2RS	25 × 47 × 12	6005DDU	6005LLU	6005 2RS	6005-2NSE	6005-2NSE9
6006 / 6006-ZZ / 6006-2RS	30 × 55 × 13	6006DDU	6006LLU	6006 2RS	6006-2NSE	6006-2NSE9
6007 / 6007-ZZ / 6007-2RS	35 × 62 × 14	6007DDU	6007LLU	6007 2RS	6007-2NSE	6007-2NSE9
6008 / 6008-ZZ / 6008-2RS	40 × 68 × 15	6008DDU	6008LLU	6008 2RS	6008-2NSE	6008-2NSE9
6009 / 6009-ZZ / 6009-2RS	45 × 75 × 16	6009DDU	6009LLU	6009 2RS	6009-2NSE	6009-2NSE9
6010 / 6010-ZZ / 6010-2RS	50 × 80 × 16	6010DDU	6010LLU	6010 2RS	6010-2NSE	6010-2NSE9
6200 / 6200-ZZ / 6200-2RS	10 × 30 × 9	6200DDU	6200LLU	6200 2RS	6200-2NSE	6200-2NSE9
6201 / 6201-ZZ / 6201-2RS	12 × 32 × 10	6201DDU	6201LLU	6201 2RS	6201-2NSE	6201-2NSE9
6202 / 6202-ZZ / 6202-2RS	15 × 35 × 11	6202DDU	6202LLU	6202 2RS	6202-2NSE	6202-2NSE9
6203 / 6203-ZZ / 6203-2RS	17 × 40 × 12	6203DDU	6203LLU	6203 2RS	6203-2NSE	6203-2NSE9
6204 / 6204-ZZ / 6204-2RS	20 × 47 × 14	6204DDU	6204LLU	6204 2RS	6204-2NSE	6204-2NSE9
6205 / 6205-ZZ / 6205-2RS	25 × 52 × 15	6205DDU	6205LLU	6205 2RS	6205-2NSE	6205-2NSE9
6206 / 6206-ZZ / 6206-2RS	30 × 62 × 16	6206DDU	6206LLU	6206 2RS	6206-2NSE	6206-2NSE9
6207 / 6207-ZZ / 6207-2RS	35 × 72 × 17	6207DDU	6207LLU	6207 2RS	6207-2NSE	6207-2NSE9
6208 / 6208-ZZ / 6208-2RS	40 × 80 × 18	6208DDU	6208LLU	6208 2RS	6208-2NSE	6208-2NSE9
6209 / 6209-ZZ / 6209-2RS	45 × 85 × 19	6209DDU	6209LLU	6209 2RS	6209-2NSE	6209-2NSE9
6210 / 6210-ZZ / 6210-2RS	50 × 90 × 20	6210DDU	6210LLU	6210 2RS	6210-2NSE	6210-2NSE9
6211 / 6211-ZZ / 6211-2RS	55 × 100 × 21	6211DDU	6211LLU	6211 2RS	6211-2NSE	Ask us
6212 / 6212-ZZ / 6212-2RS	60 × 110 × 22	6212DDU	6212LLU	6212 2RS	6212-2NSE	Ask us
6300 / 6300-ZZ / 6300-2RS	10 × 35 × 11	6300DDU	6300LLU	6300 2RS	6300-2NSE	6300-2NSE9
6301 / 6301-ZZ / 6301-2RS	12 × 37 × 12	6301DDU	6301LLU	6301 2RS	6301-2NSE	6301-2NSE9
6302 / 6302-ZZ / 6302-2RS	15 × 42 × 13	6302DDU	6302LLU	6302 2RS	6302-2NSE	6302-2NSE9
6303 / 6303-ZZ / 6303-2RS	17 × 47 × 14	6303DDU	6303LLU	6303 2RS	6303-2NSE	6303-2NSE9
6304 / 6304-ZZ / 6304-2RS	20 × 52 × 15	6304DDU	6304LLU	6304 2RS	6304-2NSE	6304-2NSE9
6305 / 6305-ZZ / 6305-2RS	25 × 62 × 17	6305DDU	6305LLU	6305 2RS	6305-2NSE	6305-2NSE9
6306 / 6306-ZZ / 6306-2RS	30 × 72 × 19	6306DDU	6306LLU	6306 2RS	6306-2NSE	6306-2NSE9
6307 / 6307-ZZ / 6307-2RS	35 × 80 × 21	6307DDU	6307LLU	6307 2RS	6307-2NSE	6307-2NSE9
6308 / 6308-ZZ / 6308-2RS	40 × 90 × 23	6308DDU	6308LLU	6308 2RS	6308-2NSE	6308-2NSE9
6309 / 6309-ZZ / 6309-2RS	45 × 100 × 25	6309DDU	6309LLU	6309 2RS	6309-2NSE	6309-2NSE9
6310 / 6310-ZZ / 6310-2RS	50 × 110 × 27	6310DDU	6310LLU	6310 2RS	6310-2NSE	6310-2NSE9

Dimensions are from the ENRO catalogue. "Ask us": the number has not passed our source check yet, so it is left out. Send it and we will confirm it. NACHI -2NSE9 for 6211, 6212 is still being checked; the -2NSE number in the column before it is confirmed.

Older markings

Older codes still found on bearings

Markings outlive catalogues, so a worn bearing may carry a code its maker no longer prints. NACHI is the usual example: ZZE replaced plain ZZ, -2NSE replaced -2NSL, and on the non-contact side -2NKE replaced -2NK. The base number did not change in any of these, so the old marking still maps to the same ENRO row.

How to use it

Worked example: an NTN 6205LLUC3 from a motor

6205 is the size: 25 × 52 × 15 mm. ENRO 6205 has the same boundary dimensions.
LLU is NTN's contact seal on both sides. The ENRO code is 2RS.
C3, written straight after LLU, is the clearance group. ENRO deep groove ball bearings are offered in C0 (CN), C3 clearance. Add C3 after the ENRO number, for example 6205-2RS C3.

The same bearing from NSK reads 6205DDUC3. Both become ENRO 6205-2RS C3.

Before you send a list with mixed makers

Keep each number exactly as written, including any space (Koyo) or trailing letter (NACHI E).
Mark which seals are non-contact or low torque (VV, LLB, LLH, 2RU, -2NKE). They are not the same as 2RS.
Keep the clearance of the old bearing. If the marking ends in C3, order C3.
Sizes outside 6000–6310 are on the deep groove ball bearing page.

Brand tables

Other brand cross reference tables

SKF · FAG equivalents

SKF and FAG

35 deep groove ball sizes, 6000–6310. SKF 2Z, 2RSH, 2RS1 and /C3; FAG -C numbers.

Timken · Fafnir equivalents

Timken and Fafnir

35 deep groove ball sizes, 6000–6310. Timken -ZZ, -2RS, -C3 and Fafnir KDD and PP.

Spherical roller equivalents

Spherical roller bearings

13 sizes, 22205–23022, cylindrical and K tapered bore. SKF, NSK, NTN, Koyo, NACHI and FAG.

Tools

Engineering tools built on our catalog data

Bearing Size Finder Find a model from bore, outside diameter and width. Open tool → Bearing Life Calculator Basic rating life L10 and L10h per ISO 281. Open tool → Suffix & Seal Selector Pick shields, seals, snap ring or tapered bore. Open tool → Bearing Size Chart Series-by-series boundary dimension reference. Open tool →

FAQ

NSK, NTN, Koyo and NACHI cross reference FAQ

What is DDU on an NSK bearing?

DDU is NSK's contact rubber seal on both sides. NSK 6205DDU translates to ENRO 6205-2RS. NSK VV is a non-contact seal and is a different item.

What is the ENRO equivalent of NTN 6203LLU?

ENRO 6203-2RS. Both are 17 × 40 × 12 mm (d × D × B) with contact seals on both sides.

Is NACHI ZZE the same as ZZ?

For ordering, yes. ZZE is how NACHI currently writes a shield on both sides. NACHI 6204ZZE translates to ENRO 6204-ZZ.

Why is there no C3 column?

The four makers place the clearance code differently and we have not confirmed every combination, so the tables show the base versions only. The rule is in the suffix table above: keep the C3 from the old bearing and write it after the ENRO number.

A cell says "ask us". What does that mean?

A number is printed only after it has been checked against the maker's published data or against more than one independent source. "Ask us" means that check is not finished for this cell, so we leave it blank rather than guess. Send the number you have and we will confirm it before quoting.

Can I send a whole parts list in one go?

Yes. Paste the numbers as they are written on the old bearings or in your maintenance records, with quantities. We return the ENRO number and dimensions next to each line. We reply within 24 hours on business days.

Request a quote

Send your part list. Get a matched quote.

Send any part number and we'll match the dimensionally equivalent ENRO model. We reply within 24 hours on business days.

Request a Quote Find by size