1304K
Tier-one manufacturer — brand supplied may vary ✓ Bore checked against the ISO tableCouldn't load pickup availability
Image is for illustration purposes only.
What 1304K means
| Code | Position | Meaning |
|---|---|---|
1 |
Type | Self-aligning ball bearing |
3 |
Diameter series | Diameter series 3 (medium) |
04 |
Bore | Bore code 04 × 5 = 20 mm |
K |
Bore type | Tapered bore, taper 1:12 (mounts on an adapter or withdrawal sleeve) |
Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.
1304K specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 20 mm | 0.7874 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 52 mm | 2.0472 in | Supplier catalogue listing |
| Width (B) | 15 mm | 0.5906 in | Supplier catalogue listing |
| Bearing type | Self-aligning ball bearing | Stated by the designation | |
| Seals / shields | Open (no seals or shields) | Stated by the designation | |
| Internal clearance | Normal (CN): no clearance code in the designation | Stated by the designation | |
| Bore | Tapered bore (1:12) | Stated by the designation | |
| Cage | Steel | Supplier catalogue listing | |
| Tolerance class | Normal (ISO P0 / ABEC 1): no tolerance-class code | Stated by the designation | |
| Material | Steel | Supplier catalogue listing | |
| Dynamic load rating, C | 12.59 kN | 2,830 lbf |
|---|---|---|
| Static load rating, C0 | 3.36 kN | 755 lbf |
| Limiting speed, grease | 12,000 rpm | |
| Limiting speed, oil | 15,000 rpm | |
1304K is a self-aligning ball bearing, 20 mm bore × 52 mm OD × 15 mm wide (0.7874 × 2.0472 × 0.5906 in). It has a tapered bore (1:12). NTN catalogue values for 1304K: dynamic load rating C = 12.59 kN, static C0 = 3.36 kN, limiting speed 12,000 rpm on grease, 15,000 rpm on oil.
The 1304 K is a self-aligning ball bearing with a tapered bore (1:12 taper ratio) and 20mm bore diameter. This double-row bearing design allows the inner ring and ball assembly to align automatically to compensate for shaft deflection or mounting surface misalignment.
1304 K 1300 Series Self-Aligning Ball Bearing
