2210 bearing: complete specifications & equivalents
The 2210 is a ISO 15 radial bearing sized 50 x 90 x 23 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 50 mm |
| Outer diameter D | 90 mm |
| Width B | 23 mm |
| Seal / shield | open |
| Basic dynamic load rating C | 23.3 kN |
| Basic static load rating C0 | 8.45 kN |
| Fatigue load limit Pu | 0.57 kN |
| Limiting speed (mechanical) | 6300 rpm |
| Mass | 598 g |
| Manufacturer designation | 2210S |
| Standard | ISO 15 |
| Catalog version | CAT. No. 2203-3/E 2024 |
| Last verified | 2026-09-25 |
Source: catalog reference (CAT. No. 2203-3/E 2024) · extracted 2026-09-25
Parameters extracted from the official NTN Ball and Roller Bearings catalogue (CAT. No. 2203-3/E 2024); NTN® is a trademark of NTN Corporation, used here for identification only — mpnbase is not an authorized NTN distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at ntnglobal.com.
Dimensions in inches & 2200-series range
| Bore d | 1.969 in |
|---|---|
| Outer diameter D | 3.543 in |
| Width B | 0.906 in |
| ISO bore code | 10 |
| Radial section height (D−d)/2 | 20 mm |
| Smallest bore in 2200-series | 10 mm |
| Largest outer diameter in 2200-series | 200 mm |
| Width range across 2200-series | 14–53 mm |
| Bore position in 2200-series (smallest first) | 11 of 23 |
| Bore above smallest 2200-series size | 40 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the 2210 model number is decoded
In the 2200-series (ISO 15 dimension series) the leading digits 22 mark a double-row self-aligning ball bearing and the last two digits encode the bore: 2210 carries bore code 10 = 50 mm. Outside diameter 90 mm and width 23 mm follow the ISO 15 general plan. The cylindrical bore fits directly on a machined shaft seat; a tapered-bore K variant is available for adapter-sleeve mounting. Two rows of balls run on a common sphered outer raceway, allowing the inner ring to pivot and compensate for shaft deflection or housing misalignment.
Typical equipment & failure modes
Common applications
- gearbox and speed reducer shafts
- conveyor and material handling drives
- textile and printing machine spindles
- paper mill and processing equipment shafts
Known failure patterns
- contamination wear from dust and dirt ingress through the open arrangement
- lubricant starvation when no regreasing interval is maintained
- rolling-contact fatigue spalling after the rated L10 life is exceeded
- cage wear or fracture from sustained vibration or shock loading
Selection pitfalls — read before you substitute
- Temperature rise and interference fits consume internal clearance on this 50 mm bore: a CN bearing on a tight, hot shaft can lose all residual clearance — size 2210 with C3 for those conditions.
- The 22xx wide-section at 50 mm bore adds load capacity through increased 23 mm width; the wider ring needs a wider housing seat and may reduce limiting speed versus a 1210.
- The open 2210 has no lubricant retention: grease escapes and contaminants migrate straight into the 50×90×23 mm raceway, so specify a sealed arrangement for dusty or washdown duty.
- Open bearings tolerate the highest speeds in the 2200-series but need a defined regreasing interval; run-to-failure lubrication is the dominant cause of early failure in open 2210 units.
- Shaft and housing fillets must clear the bearing chamfer so the 23 mm-wide ring seats square; provide an undercut or withdrawal groove instead of relying on an oversized radius.
Frequently asked questions
What are the dimensions of a 2210 self-aligning ball bearing?
A 2210 self-aligning ball bearing has a 50 mm bore, 90 mm outer diameter and 23 mm width, per ISO 15 boundary dimensions. This is the cylindrical-bore version; a tapered-bore K variant is available for adapter-sleeve mounting.
How does the 2210 bore code work?
The last two digits of 2210 are bore code 10, giving 10 × 5 = 50 mm bore. The 90 mm outside diameter and 23 mm width follow the ISO 15 diameter series, not the bore code alone.
What does the open suffix mean on 2210?
A bare 2210 designation means open: no shields or seals, normal CN radial clearance and P0 normal tolerance unless further suffixes are ordered. The application must supply and retain the lubrication.
How does the 2200 compare with other self-aligning series at the same 50 mm bore?
The 22xx is the wide light section: 90×23 mm with a 20.0 mm radial section at 50 mm bore, wider than a 1210 for higher load capacity at the cost of speed.
Reviewed & verified by the MPN Base engineering desk against source catalog CAT. No. 2203-3/E 2024 on 2026-09-25. Read our editorial & correction policy.