626, 626-2Z, 626-2RS Ball Bearing, ISO 15
For a 6 mm shaft and a 19 mm housing bore, the 626 ball bearing (ISO 15) is 6 mm wide. Modeled as simplified STEP files.

How these parts are made, and what the levels mean: read the method
- Also searched as: 626 bearing, 626-2Z bearing, 626-2RS bearing
- Model id:
iso15-626
- Standard: ISO 15 · size 626
Versions
| Designation | What differs | Part key | Simplified |
|---|
| 626 | open | iso15-626 | STEP |
| 626-2Z | 2Z (shielded) | iso15-626-2z | STEP |
| 626-2RS | 2RS (sealed) | iso15-626-2rs | STEP |
Dimensions

| Symbol | Name | min | nom | max | Modeled | Rule | Level |
|---|
| d | Bore diameter | | 6 | | 6 | nominal | L1 |
| D | Outside diameter | | 19 | | 19 | nominal | L1 |
| B | Width | | 6 | | 6 | nominal | L1 |
| r | Chamfer dimension | 0.3 | | | 0.3 | single limit (min), modeled at the limit | L1 |
Drawing

As a PDF: CC-ISO15-SZ-626.pdf.
Load ratings and speeds
What NSK's web catalogue (nsk-dgbb) lists for its open bearing of this designation. Limiting speeds are for the open bearing; a shielded or sealed bearing has its own, lower ones.
- Basic Load Ratings, Cr: 2570 N
- Basic Load Ratings, C0r: 885 N
- Limiting Speeds, Grease: 32000 min-1
- Limiting Speeds, Oil (Oil-bath): 40000 min-1
The 626 ball bearing beside the 606 and the 697
The 626 is number 14 of the 71 ISO 15 ball bearings published here, listed from 693 to 6306.
- Bore diameter (d): 6 mm on the 626 ball bearing, against 6 mm on the 606 and 7 mm on the 697.
- Outside diameter (D): 19 mm on the 626 ball bearing, against 17 mm on the 606 and 17 mm on the 697.
- Width (B): 6 mm on the 626 ball bearing, against 6 mm on the 606 and 5 mm on the 697.
- Chamfer dimension (r): at least 0.3 mm on the 626 ball bearing, the same on the 606 and the 697.
Other sizes
Documents
Sources
nsk-dgbb, ntn-bearingfinder-dgbb, skf-17000-dgbb. Full citations: the method page and this size's datasheet.
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