16000 Series Deep Groove Ball Bearings
The narrow series, and the odd one out: a 16000 has the same outside diameter as the 6000 of the same bore — a 16004 and a 6004 are both 42 mm across — in a ring 4 mm narrower. Same housing, less axial room.
Narrow serieswhere it sits and what it trades away
The one deep groove series that is not a diameter step at all: a 16000 has the same outside diameter as the 6000 of the same bore — a 16004 and a 6004 are both 42 mm across — in a ring that is 4 mm narrower. Same housing, less axial room, and less load capacity.
The deep groove series in this sub-library are mostly rungs on one ladder: fix the shaft, and each step up gives a larger outside diameter to fit a larger load. The 16000 series is not a rung. At every bore it shares its outside diameter exactly with the 6000 series — a 16000 is 26 mm across like a 6000, a 16020 is 150 mm like a 6020 — and takes the difference out of the width instead: 7 mm against 8 at a 10 mm bore, 16 mm against 24 at a 100 mm bore. That is what it is for. When the housing bore is already fixed by the machine and what you have run out of is room along the shaft, a 16000 goes into the seat a 6000 would have taken, 1 to 8 mm thinner.
A narrower ring is not a free saving. Less width means less raceway and less room for the ball set, so a 16000 does not carry what the 6000 of the same bore carries — the same trade of section for capacity that every other pair of series here makes. So the 16000 is chosen on width, not on capacity: if the space is there, the 6000 is the better bearing; if it is not, the 16000 is often the only standard part that fits at all.
The 16000 series is also the one series here whose number does not split the way the others do. 16004 is written 160 followed by the bore code 04 — type 6, series 16, bore 04 is not how it breaks down. Everything else about reading it is unchanged: 04 is a 20 mm bore, 00 to 03 are the 10, 12, 15 and 17 mm special cases, and from 04 upwards the code is multiplied by five. Catalogues name the family the 160 series.
The series runs from 16000 (10 mm bore, 26 mm outside diameter, 7 mm wide) to 16020 (100 mm bore, 150 mm outside diameter, 16 mm wide) — 21 designations, one for every bore code from 00 to 20. 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 every other series.
This series runs from a 10 mm to a 100 mm bore. The sub-library as a whole reaches 300 mm of bore, and the widest single bearing in it is a 6360, 620 mm across, in the 6300 series. This one stops short of it.
All 21 designationsISO 15 boundary dimensions, mm
| Designation | Bore code | d | D | B | r s min | Section (D − d)/2 |
|---|---|---|---|---|---|---|
| 16000 | 00 | 10 | 26 | 7 | 0.3 | 8 |
| 16001 | 01 | 12 | 28 | 7 | 0.3 | 8 |
| 16002 | 02 | 15 | 32 | 8 | 0.3 | 8.5 |
| 16003 | 03 | 17 | 35 | 8 | 0.3 | 9 |
| 16004 | 04 | 20 | 42 | 8 | 0.3 | 11 |
| 16005 | 05 | 25 | 47 | 8 | 0.3 | 11 |
| 16006 | 06 | 30 | 55 | 9 | 0.3 | 12.5 |
| 16007 | 07 | 35 | 62 | 9 | 0.3 | 13.5 |
| 16008 | 08 | 40 | 68 | 9 | 0.3 | 14 |
| 16009 | 09 | 45 | 75 | 10 | 0.6 | 15 |
| 16010 | 10 | 50 | 80 | 10 | 0.6 | 15 |
| 16011 | 11 | 55 | 90 | 11 | 0.6 | 17.5 |
| 16012 | 12 | 60 | 95 | 11 | 0.6 | 17.5 |
| 16013 | 13 | 65 | 100 | 11 | 0.6 | 17.5 |
| 16014 | 14 | 70 | 110 | 13 | 0.6 | 20 |
| 16015 | 15 | 75 | 115 | 13 | 0.6 | 20 |
| 16016 | 16 | 80 | 125 | 14 | 0.6 | 22.5 |
| 16017 | 17 | 85 | 130 | 14 | 0.6 | 22.5 |
| 16018 | 18 | 90 | 140 | 16 | 1 | 25 |
| 16019 | 19 | 95 | 145 | 16 | 1 | 25 |
| 16020 | 20 | 100 | 150 | 16 | 1 | 25 |
d = bore diameter, D = outside diameter, B = width. All of them are ISO 15 standard values and are the same for every manufacturer. r s min is the minimum single chamfer dimension the plan gives; its matching maximum is in ISO 582, which is why the column says “min” and not an equality. 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.
Every series at one boresame shaft, different housing
Outside diameter × overall size in millimetres, for the 5 smallest bores in this database. The full charts, one per type, are 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. Across the type boundary the last number changes meaning — it is a width above and a height below — so compare within a type, then decide whether the job wants a ball bearing, a tapered roller or a thrust bearing at all. The 6 series whose type has no bore are not rows here: they are indexed by the shaft they run on, and their chart is above.
Frequently asked questionsreading a bearing designation
Is a 16004 the same as a 6004?
No, but they share a housing. Both have a 20 mm bore and a 42 mm outside diameter, so either will go into the same seat. They differ in width — 8 mm against 12 mm — and that makes them non-interchangeable in practice: a 16004 leaves 4 mm of that seat unoccupied and carries less, and a 6004 will not go where the space was sized for a 16004.
Why does the 16000 series have five digits?
Because the number is not built the same way as the rest. 6004 is type 6, series 0 and bore code 04; 61804 is type 6, series 18 and bore code 04. The 16000 series is written 160 followed by the bore code — 16000, 16001 and so on — so the family name carries an extra digit rather than a separate series field. The bore code itself still means exactly what it means everywhere else.
When should I choose a 16000 rather than a 6000?
When the housing bore is fixed and the axial space is what you do not have. The two are the same size across, so the housing is not the constraint either way; the 16000 is 1 to 8 mm narrower depending on the bore. What that costs is capacity, so check the load rating for the exact bearing in the catalogue of the make you are buying — that figure is not published here, for the reasons below.