Description
The 3203 ATN9 double-row angular contact ball bearing features a back-to-back arrangement equivalent to two single-row angular contact bearings, providing high rigidity and accommodating large axial forces in both directions. Its compact design requires less axial space than a pair of single-row bearings, making it ideal for applications where space is limited.
With a bore diameter of 17 mm, outside diameter of 40 mm, and width of 17.5 mm, this bearing has a 30° contact angle, a basic dynamic load rating of 14.3 kN, and a static load rating of 8.8 kN. It supports reference speeds up to 19,000 r/min and limiting speeds up to 16,000 r/min, making it suitable for high-speed machinery such as precision instruments, small motors, and machine tool spindles.
Constructed from premium bearing steel with non-metallic cages, the 3203 ATN9 bearing features normal two-point contact and a CN axial internal clearance. It is unsealed and greaseless, designed for applications where lubrication is provided externally. The combination of compact size, high-speed capability, and load capacity ensures reliable performance with minimal maintenance.
Specifications
| Attribute | Details |
|---|---|
| Part Number | 3203 ATN9 |
| Bearing Type | Double row angular contact ball bearing |
| Bore Diameter | 17 mm |
| Outside Diameter | 40 mm |
| Width | 17.5 mm |
| Contact Angle | 30° |
| Number of Rows | 2 |
| Cage | Non-metallic |
| Ring Type | One-piece inner and outer rings |
| Arrangement of Contact Angle | Back-to-back (O) |
| Contact Type | Normal contact (two-point contact) |
| Axial Internal Clearance | CN |
| Sealing | Without |
| Lubricant | None |
| Material | Bearing steel |
| Coating | Without |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Reference Speed | 19,000 r/min |
| Limiting Speed | 16,000 r/min |
| Indicative Carbon Footprint | 0.342 kg CO2e |
| Net Weight | 0.095 kg |
| eClass Code | 23-05-08-03 |
| UNSPSC Code | 31171531 |
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