Guide
KOYO Bearing Cross Reference
Interchange KOYO (JTEKT) bearing part numbers to SKF, FAG, Timken, NTN or NSK equivalents. KOYO suffixes like 2RS (contact seals), 2Z (shields), R (rolled-cage tapered) and JR (case-carburized) map directly to the competitor's code — this chart lists the exact match. Send us the KOYO number and we'll pull the equivalent from Houston stock.
Look up a KOYO part number
Enter a KOYO part number to see the equivalents we stock. Can't find your part? Send us the number and we'll cross-reference it.
How the KOYO numbering system works
KOYO (now JTEKT) uses ISO 15 base numbers with straightforward suffixes. 2RS = two contact rubber seals (SKF 2RSH, FAG 2RSR, NTN LLU, NSK DDU). 2Z or ZZ = two steel shields. C3 = greater-than-normal internal clearance.
On tapered rollers, the JR suffix indicates KOYO's case-carburized J-series with SKF J2/Q-equivalent tolerances. R on spherical rollers is the reinforced roller set. MB on cylindrical rollers is a machined-brass cage; C3 and C4 follow ISO clearance conventions.
KOYO interchange chart
| KOYO | SKF | FAG | TIMKEN | NTN | NSK | Type |
|---|---|---|---|---|---|---|
| 6203-2RS | 6203-2RSH | 6203-2RSR | 203PP | 6203LLU | 6203DDU | Deep-groove ball, sealed |
| 6204-2RS | 6204-2RSH | 6204-2RSR | 204PP | 6204LLU | 6204DDU | Deep-groove ball, sealed |
| 6205-2RS | 6205-2RSH | 6205-2RSR | 205PP | 6205LLU | 6205DDU | Deep-groove ball, sealed |
| 6206-2RS | 6206-2RSH | 6206-2RSR | 206PP | 6206LLU | 6206DDU | Deep-groove ball, sealed |
| 6305-2RS | 6305-2RSH | 6305-2RSR | 305PP | 6305LLU | 6305DDU | Deep-groove ball, sealed |
| 6308-2Z | 6308-2Z | 6308-2ZR | 308KDD | 6308ZZ | 6308ZZ | Deep-groove ball, shielded |
| 22210R | 22210 E | 22210-E1 | 22210EJ | 22210EAW33 | 22210EAE4 | Spherical roller |
| 32208JR | 32208 J2/Q | 32208-A | 32208 | 4T-32208 | HR32208J | Tapered roller |
| 30210JR | 30210 J2/Q | 30210-A | 30210 | 4T-30210 | HR30210J | Tapered roller |
| NU309R | NU 309 ECP | NU309-E-TVP2 | NU309E | NU309E | NU309EW | Cylindrical roller |
Don't see your KOYO part? Email sales@tsbindustrialsupply.com — we'll pull the equivalent from our master interchange.