Deep groove ball bearing · 60 series (extra light)
6038 bearing
190 × 290 × 46 mm
The 6038 is a deep groove ball bearing with a 190 mm bore, 290 mm outside diameter and 46 mm width. Thin section; smaller outside diameter for the same bore.
- Bore d
- 190 mm 7.4803 in
- Outside diameter D
- 290 mm 11.4173 in
- Width B
- 46 mm 1.811 in
- Dimension series
- 10
- Load directions
- Radial and moderate axial in both directions
Designation explained
What 6038 means
Standard bearing numbers encode the type, the dimension series and the bore. Anything after the base number — seals, clearance, cage — is a suffix.
| Part | Meaning |
|---|---|
6 | Deep groove ball bearing |
0 | Diameter series 0 (extra light), dimension series 10 |
38 | 38 → 190 mm bore (38 × 5) |
Variants
Common 6038 variants
Suffixes change the bearing without changing its boundary dimensions. The exact letters differ between manufacturers — always order by the full designation from the maker you choose.
| Suffix | Example | Meaning |
|---|---|---|
Z / ZZ (2Z) | 6038-ZZ | Metal shield on one / both sides; keeps out coarse dirt, low friction |
RS / 2RS | 6038-2RS | Rubber contact seal on one / both sides; better protection against dust and water |
C2 | 6038-C2 | Internal radial clearance smaller than normal |
CN (no suffix) | 6038 | Normal internal clearance |
C3 | 6038-C3 | Internal clearance greater than normal — common for electric motors and heated shafts |
C4 | 6038-C4 | Internal clearance greater than C3 |
| Manufacturer | Shields both sides | Contact seals both sides |
|---|---|---|
| SKF | 6038-2Z | 6038-2RS1 |
| FAG (Schaeffler) | 6038-2Z | 6038-2RSR |
| NSK | 6038-ZZ | 6038-DDU |
| NTN | 6038-ZZ | 6038-LLU |
| Koyo (JTEKT) | 6038-ZZ | 6038-2RS |
6038-2RS (sealed)
- Rubber contact seals on both sides
- Best protection against dust, water and grease loss
- Slightly more friction and a lower speed limit
- Choose for dirty, wet or outdoor use
6038-ZZ / 2Z (shielded)
- Metal shields on both sides, small gap to the inner ring
- Keeps out coarse dirt; not water-tight
- Lower friction, higher speeds
- Choose for clean, fast-running applications
Same bore
Other 190 mm bore bearings
Every standard bearing in this reference with a 190 mm bore, from light to heavy sections.
| Designation | Type | D | B / H |
|---|---|---|---|
| 6238 | Deep groove ball bearing | 340 mm | 55 mm |
| 6338 | Deep groove ball bearing | 400 mm | 78 mm |
| 7238 | Angular contact ball bearing | 340 mm | 55 mm |
| 7338 | Angular contact ball bearing | 400 mm | 78 mm |
| NU238 | Cylindrical roller bearing | 340 mm | 55 mm |
| NU338 | Cylindrical roller bearing | 400 mm | 78 mm |
| NU2238 | Cylindrical roller bearing | 340 mm | 92 mm |
| NU2338 | Cylindrical roller bearing | 400 mm | 132 mm |
| 22238 | Spherical roller bearing | 340 mm | 92 mm |
| 22338 | Spherical roller bearing | 400 mm | 132 mm |
Where to buy
Find 6038 at sellers
Search results on independent sellers. We are not affiliated with them, do not earn from these links and do not see their prices or stock. Results mix brands and variants — check the full designation before you order.
About these dimensions. Boundary dimensions follow ISO 15 (radial bearings — boundary dimensions, general plan), dimension series 10, and are the same for every manufacturer of a standard 6038. Chamfers, load ratings, speed limits and weight depend on the manufacturer and design and are not shown — use the maker's datasheet for engineering decisions. Last checked 9 October 2026. Spotted an error? Tell us.
Learn more
What size is a 6038 bearing?
A 6038 is a deep groove ball bearing with a 190 mm bore, 290 mm outside diameter and 46 mm width (190 × 290 × 46 mm). These boundary dimensions follow the ISO dimension plan, so they are the same across manufacturers.
What does 6038-2RS or 6038-ZZ mean?
Same size, different closures: 2RS has rubber contact seals on both sides, ZZ (2Z) has metal shields on both sides. Manufacturers use different letters for the same idea — for example NSK DDU or NTN LLU for contact seals.
Can I replace 6038 with another bearing of the same size?
Other bearing types can share the same 190 × 290 × 46 mm envelope, but a different type has different load directions, speed limits and mounting needs. Same dimensions alone do not make two bearings interchangeable.
Where are the load ratings and speed limits?
They depend on the manufacturer and internal design, so we do not list a single value. Check the datasheet for the exact full designation you intend to use.
Need 6038 data for a whole catalog?
We can help with that.
Normalized specifications, variants and supplier listings for every bearing you sell, with the source behind each value.