6000 bearing dimensions
A 6000 bearing is 10 mm bore × 26 mm outside diameter × 8 mm wide (0.394 × 1.024 × 0.315 in). The sealed version is 6000-2RS; the shielded version is 6000-ZZ.
6000 at a glance
Boundary dimensions in millimetres and inches, and the common closure designations.
- Bore, d
- 10 mm 0.3937"
- Outside diameter, D
- 26 mm 1.0236"
- Width, B
- 8 mm 0.3150"
- Section height, (D − d)/2
- 8 mm 0.3150"
- Series
- 60 series extra-light
- Bore code
- 00 00 = 10 mm
- Sealed, both sides
- 6000-2RS
- Shielded, both sides
- 6000-ZZ
- Open
- 6000 no closures; any version may add C3 for extra internal clearance
Reading the number 6000
Every deep groove ball bearing number follows the same pattern: type, dimension series and bore code, then suffixes.
Seals, shields and suffixes
Suffixes add closures and internal clearance. They do not change the boundary dimensions: a sealed and an open bearing of the same number are interchangeable in size.
| Suffix | Meaning | 6000 example |
|---|---|---|
| Open (no suffix) | No seals or shields. Can be relubricated, or run in an oil bath; the housing needs its own seal against dirt. | 6000 |
| Z | One metal shield, on one side only. | 6000-Z |
| ZZ, 2Z | Metal shields on both sides. Non-contact, so low friction; keeps out larger dirt. Usually greased for life. | 6000-ZZ |
| RS | One rubber contact seal, on one side only. | 6000-RS |
| 2RS, 2RS1, 2RSH, 2RSR, DDU, LLU | Rubber contact seals on both sides. Better than shields against fine dirt and splashing water, with a little more friction. Usually greased for life. | 6000-2RS |
| C3 | Radial internal clearance greater than normal (CN). Used with tight shaft or housing fits, or where the inner ring runs hotter than the outer ring. | 6000-2RS C3 |
6000 in other brands
The sealed and shielded versions as each maker writes them. All share the same boundary dimensions.
| Maker | Sealed both sides | Shielded both sides |
|---|---|---|
| SKF | 6000-2RSH | 6000-2Z |
| FAG (Schaeffler) | 6000-2RSR | 6000-2ZR |
| NSK | 6000DDU | 6000ZZ |
| NTN | 6000LLU | 6000ZZ |
| Koyo (JTEKT) | 6000-2RS | 6000ZZ |
| Timken | 6000-2RS | see catalogue |
Seal designs and suffixes vary by maker, size range and product generation, for example contact versus low-friction seals. Confirm the exact designation in the maker's catalogue before ordering.
Same 10 mm bore, other series
Bearings that fit the same shaft. A heavier series carries more load in a bigger housing bore; a thin-section series saves space and weight.
60 series
Common questions
What size is a 6000 bearing?
10 mm bore, 26 mm outside diameter and 8 mm wide, which is 0.394 × 1.024 × 0.315 in.
What does 2RS mean on a 6000 bearing?
6000-2RS has rubber contact seals on both sides. 6000-ZZ (also written 6000-2Z) has metal shields on both sides. Both have the same 10 × 26 × 8 mm dimensions.
Is 6000-2RS the same as 6000-ZZ?
They are the same size and interchangeable in a housing. The sealed 6000-2RS keeps out fine dirt and water better; the shielded 6000-ZZ runs with less friction.
What is the SKF equivalent of 6000-2RS?
SKF writes it 6000-2RSH; FAG 6000-2RSR, NSK 6000DDU, NTN 6000LLU and Koyo 6000-2RS. Check the maker's catalogue for the exact seal type.
What does the number 6000 mean?
6 is the deep groove ball bearing type, 0 is the extra-light dimension series, and 00 = 10 mm (codes 00 to 03 are fixed: 10, 12, 15 and 17 mm).
Which bearings have the same bore as 6000?
6800, 6900, 6200, 6300 also have a 10 mm bore, with different outside diameters and widths.