16003, 16003-2Z, 16003-2RS Ball Bearing, ISO 15
For a 17 mm shaft and a 35 mm housing bore, the 16003 ball bearing (ISO 15) is 8 mm wide. Modeled as simplified STEP files.

How these parts are made, and what the levels mean: read the method
- Also searched as: 16003 bearing, 16003-2Z bearing, 16003-2RS bearing
- Model id:
iso15-16003
- Standard: ISO 15 · size 16003
Versions
| Designation | What differs | Part key | Simplified |
|---|
| 16003 | open | iso15-16003 | STEP |
| 16003-2Z | 2Z (shielded) | iso15-16003-2z | STEP |
| 16003-2RS | 2RS (sealed) | iso15-16003-2rs | STEP |
Dimensions

| Symbol | Name | min | nom | max | Modeled | Rule | Level |
|---|
| d | Bore diameter | | 17 | | 17 | nominal | L1 |
| D | Outside diameter | | 35 | | 35 | nominal | L1 |
| B | Width | | 8 | | 8 | nominal | L1 |
| r | Chamfer dimension | 0.3 | | | 0.3 | single limit (min), modeled at the limit | L1 |
Drawing

As a PDF: CC-ISO15-SZ-16003.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: 6600 N
- Basic Load Ratings, C0r: 3250 N
- Limiting Speeds, Grease: 22000 min-1
- Limiting Speeds, Oil (Oil-bath): 26000 min-1
The 16003 ball bearing beside the 6903 and the 6003
The 16003 is number 44 of the 71 ISO 15 ball bearings published here, listed from 693 to 6306.
- Bore diameter (d): 17 mm on the 16003 ball bearing, the same on the 6903 and the 6003.
- Outside diameter (D): 35 mm on the 16003 ball bearing, against 30 mm on the 6903 and 35 mm on the 6003.
- Width (B): 8 mm on the 16003 ball bearing, against 7 mm on the 6903 and 10 mm on the 6003.
- Chamfer dimension (r): at least 0.3 mm on the 16003 ball bearing, the same on the 6903 and the 6003.
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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