6300 Series Bearing Cross Reference by Brand
6300 to 6310 cross reference: FULI 2RS = SKF 2RS1/2RSH, NSK DDU, NTN LLU, NACHI 2NSE; ZZ = SKF 2Z, NACHI ZZE. With sizes. Send the old number to quote.
How 6300 series part numbers line up across makers
| Basic number | The same at every maker listed below (6300 to 6310) |
|---|---|
| Shields both sides, e.g. 6305 | FULI 6305ZZ · SKF 6305-2Z · Timken 6305-ZZ · NSK 6305ZZ · NTN 6305ZZ · Koyo 6305 ZZ · NACHI 6305ZZE |
| Contact seals both sides, e.g. 6305 | FULI 6305-2RS · SKF 6305-2RS1 · Timken 6305-2RS · NSK 6305DDU · NTN 6305LLU · Koyo 6305 2RS · NACHI 6305-2NSE |
| Radial clearance | FULI: C0 as standard, C3 on request |
The 6300 series is the medium series. For the same 25 mm bore, 6005 is 47 × 12 mm, 6205 is 52 × 15 mm, 6305 is 62 × 17 mm (outside diameter × width). A 6305 cannot be replaced by another series number with the same bore; match the basic number first.
6300 series cross reference by brand
Each row is one size. The basic number is written the same at every maker listed; only the suffix for shields and seals changes. FULI numbers link to the model page, which also lists the open and C3 versions.
Shields both sides (ZZ)
| FULI | SKF | Timken | NSK | NTN | Koyo | NACHI |
|---|---|---|---|---|---|---|
| 6300ZZ | 6300-2Z | 6300-ZZ | 6300ZZ | 6300ZZ | 6300 ZZ | 6300ZZE |
| 6301ZZ | 6301-2Z | 6301-ZZ | 6301ZZ | 6301ZZ | 6301 ZZ | 6301ZZE |
| 6302ZZ | 6302-2Z | 6302-ZZ | 6302ZZ | 6302ZZ | 6302 ZZ | 6302ZZE |
| 6303ZZ | 6303-2Z | 6303-ZZ | 6303ZZ | 6303ZZ | 6303 ZZ | 6303ZZE |
| 6304ZZ | 6304-2Z | 6304-ZZ | 6304ZZ | 6304ZZ | 6304 ZZ | 6304ZZE |
| 6305ZZ | 6305-2Z | 6305-ZZ | 6305ZZ | 6305ZZ | 6305 ZZ | 6305ZZE |
| 6306ZZ | 6306-2Z | 6306-ZZ | 6306ZZ | 6306ZZ | 6306 ZZ | 6306ZZE |
| 6307ZZ | 6307-2Z | 6307-ZZ | 6307ZZ | 6307ZZ | 6307 ZZ | 6307ZZE |
| 6308ZZ | 6308-2Z | 6308-ZZ | 6308ZZ | 6308ZZ | 6308 ZZ | 6308ZZE |
| 6309ZZ | 6309-2Z | 6309-ZZ | 6309ZZ | 6309ZZ | 6309 ZZ | 6309ZZE |
| 6310ZZ | 6310-2Z | 6310-ZZ | 6310ZZ | 6310ZZ | 6310 ZZ | 6310ZZE |
Contact seals both sides (2RS)
| FULI | SKF | Timken | NSK | NTN | Koyo | NACHI |
|---|---|---|---|---|---|---|
| 6300-2RS | 6300-2RSH | 6300-2RS | 6300DDU | 6300LLU | 6300 2RS | 6300-2NSE |
| 6301-2RS | 6301-2RSH | 6301-2RS | 6301DDU | 6301LLU | 6301 2RS | 6301-2NSE |
| 6302-2RS | 6302-2RSH | 6302-2RS | 6302DDU | 6302LLU | 6302 2RS | 6302-2NSE |
| 6303-2RS | 6303-2RSH | 6303-2RS | 6303DDU | 6303LLU | 6303 2RS | 6303-2NSE |
| 6304-2RS | 6304-2RSH | 6304-2RS | 6304DDU | 6304LLU | 6304 2RS | 6304-2NSE |
| 6305-2RS | 6305-2RS1 | 6305-2RS | 6305DDU | 6305LLU | 6305 2RS | 6305-2NSE |
| 6306-2RS | 6306-2RS1 | 6306-2RS | 6306DDU | 6306LLU | 6306 2RS | 6306-2NSE |
| 6307-2RS | 6307-2RS1 | 6307-2RS | 6307DDU | 6307LLU | 6307 2RS | 6307-2NSE |
| 6308-2RS | 6308-2RS1 | 6308-2RS | 6308DDU | 6308LLU | 6308 2RS | 6308-2NSE |
| 6309-2RS | 6309-2RSH or 6309-2RS1 | 6309-2RS | 6309DDU | 6309LLU | 6309 2RS | 6309-2NSE |
| 6310-2RS | 6310-2RS1 | 6310-2RS | 6310DDU | 6310LLU | 6310 2RS | 6310-2NSE |
SKF writes the contact-sealed 6300 series in two ways: 2RSH for 6300 to 6304 and 2RS1 for 6305 to 6308 and 6310. Both match FULI 2RS. For 6309 SKF lists both, so either number matches FULI 2RS.
FULI radial clearance is C0 as standard and C3 on request.
Brand names are trademarks of their respective owners. FULI is not affiliated with, authorized by or endorsed by these companies. Part numbers are shown for interchange reference only. FULI dimensions, load ratings and speeds come from the FULI catalog.
Sizes covered by this cross reference
| Basic number | d × D × B (mm) |
|---|---|
| 6300 | 10 × 35 × 11 |
| 6301 | 12 × 37 × 12 |
| 6302 | 15 × 42 × 13 |
| 6303 | 17 × 47 × 14 |
| 6304 | 20 × 52 × 15 |
| 6305 | 25 × 62 × 17 |
| 6306 | 30 × 72 × 19 |
| 6307 | 35 × 80 × 21 |
| 6308 | 40 × 90 × 23 |
| 6309 | 45 × 100 × 25 |
| 6310 | 50 × 110 × 27 |
Every 6300 series size with seal options and a page for each model: 6300 series bearing size chart.
FAQ
Are 6300 series bearings the same size across brands?
Yes. 6300 series bearings carry ISO designations, so the bore, outside diameter and width of each size are the same whichever manufacturer made it. Brand-specific suffixes only change details such as seals, clearance or cage.
How do I match a 6300 series number from another maker to FULI?
Start with the basic number: 6300 to 6310 is written the same way at each maker in the tables. Then match the suffix. For example, a shielded 6305 is 6305ZZ at FULI, 6305-2Z at SKF and 6305ZZE at NACHI; a contact-sealed 6305 is 6305-2RS at FULI, 6305-2RS1 at SKF, 6305DDU at NSK, 6305LLU at NTN and 6305-2NSE at NACHI.
Where are the C3 designations for each 6300 series size?
On each model page, in the cross reference table row for contact seals with C3. FULI supplies C0 radial clearance as standard and C3 on request.