6000 Series Bearings
The extra-light series: the smallest outside diameter and the thinnest ring section of the three at any given bore. It is what you fit when the housing is small and the load is light, not when you want capacity.
Extra-light serieswhere it sits and what it trades away
The 6000 series is the extra-light diameter series — the digit 0 in the second position of the designation. For a given bore it gives the smallest outside diameter and the smallest width of the three series on this site, and that has one consequence in each direction. It saves space and mass, and it costs load capacity, because the rings are thinner and there is less room inside for rolling elements.
The comparison at a single bore makes the trade explicit. On a 20 mm shaft, a 6004 is 42 mm across and 12 mm wide; a 6204 is 47 × 14; a 6304 is 52 × 15. Same shaft, three different housings, and the load the bearing will take rises with the outside diameter. Because ISO 15 fixes all three sets of dimensions, that choice is a decision about the machine, not about the supplier.
The series runs from 6000 (10 mm bore, 26 mm outside diameter, 8 mm wide) to 6020 (100 mm bore, 150 mm outside diameter, 24 mm wide) in the 21 designations tabulated here. Worth noting: at the small end the ring section is thin enough that the series is often chosen for its low mass and low friction torque rather than for anything structural — small electric motors, instruments, and mechanisms where the bearing is holding a shaft in place rather than carrying a load. That is general practice, not a property of the dimensions.
Every designation in the table below links to its own page with the ISO 15 dimensions, the bore-code arithmetic, the ISO 5753-1 clearance ranges for its bore, and the same-bore comparison against the 62 and 63 series.
All 21 designationsISO 15 boundary dimensions, mm
| Designation | Bore code | d | D | B | r s min | Section (D − d)/2 |
|---|---|---|---|---|---|---|
| 6000 | 00 | 10 | 26 | 8 | 0.3 | 8 |
| 6001 | 01 | 12 | 28 | 8 | 0.3 | 8 |
| 6002 | 02 | 15 | 32 | 9 | 0.3 | 8.5 |
| 6003 | 03 | 17 | 35 | 10 | 0.3 | 9 |
| 6004 | 04 | 20 | 42 | 12 | 0.6 | 11 |
| 6005 | 05 | 25 | 47 | 12 | 0.6 | 11 |
| 6006 | 06 | 30 | 55 | 13 | 1 | 12.5 |
| 6007 | 07 | 35 | 62 | 14 | 1 | 13.5 |
| 6008 | 08 | 40 | 68 | 15 | 1 | 14 |
| 6009 | 09 | 45 | 75 | 16 | 1 | 15 |
| 6010 | 10 | 50 | 80 | 16 | 1 | 15 |
| 6011 | 11 | 55 | 90 | 18 | 1.1 | 17.5 |
| 6012 | 12 | 60 | 95 | 18 | 1.1 | 17.5 |
| 6013 | 13 | 65 | 100 | 18 | 1.1 | 17.5 |
| 6014 | 14 | 70 | 110 | 20 | 1.1 | 20 |
| 6015 | 15 | 75 | 115 | 20 | 1.1 | 20 |
| 6016 | 16 | 80 | 125 | 22 | 1.1 | 22.5 |
| 6017 | 17 | 85 | 130 | 22 | 1.1 | 22.5 |
| 6018 | 18 | 90 | 140 | 24 | 1.5 | 25 |
| 6019 | 19 | 95 | 145 | 24 | 1.5 | 25 |
| 6020 | 20 | 100 | 150 | 24 | 1.5 | 25 |
d = bore, D = outside diameter, B = width, r s min = minimum single chamfer dimension. All four are ISO 15 standard values and are the same for every manufacturer. The last column is derived: radial section = (D − d) / 2, the wall thickness you are working with when you size the housing. No load rating and no limiting speed appears here — see the bearings index for why.
The three series at one boresame shaft, different housing
| Series | Type | 10 mm bore | 12 mm bore | 15 mm bore | 17 mm bore | 20 mm bore |
|---|---|---|---|---|---|---|
| 6000 Series | Extra-light | 26 × 8 | 28 × 8 | 32 × 9 | 35 × 10 | 42 × 12 |
| 6200 Series | Light | 30 × 9 | 32 × 10 | 35 × 11 | 40 × 12 | 47 × 14 |
| 6300 Series | Medium | 35 × 11 | 37 × 12 | 42 × 13 | 47 × 14 | 52 × 15 |
Outside diameter × width in millimetres, for the five smallest bores in this batch. The full chart across all 21 bores and all three series is on the bearings index. Reading a row is what a machine designer does when the shaft is already fixed: the bore does not change, the housing bore does.
Frequently asked questionsreading a bearing designation
What is the difference between the 6000 and 6200 series?
The diameter series: 6000 is extra-light, 6200 is light. At the same bore the 6000 series has a smaller outside diameter and a narrower width, so it needs a smaller housing but has a lower load capacity. On a 25 mm shaft a 6005 is 47 × 12 mm and a 6205 is 52 × 15 mm.
How many sizes are in the 6000 series?
Far more than the 21 listed here. This batch tabulates 6000 to 6020, covering bores from 10 mm to 100 mm — the range that ISO 15's extra-light table is normally quoted over. Larger and smaller sizes exist and are not yet in this database.
When should I use an extra-light bearing instead of a light one?
When the space around the shaft, or the mass, matters more than the load. The extra-light series exists for exactly that trade: it is the smallest envelope for a given bore, and the load it will carry is correspondingly lower. If the housing has room, stepping up to the light series costs nothing but the housing bore.