NN3056 Bearing
Double row cylindrical roller bearing
- Bore d280 mm
- Outer dia. D420 mm
- Width B106 mm
- Weight≈ 50 kg
High rigidity and precision: machine-tool spindles, mill rolls.
Technical data
| Bearing designation | NN3056 |
|---|---|
| Type | Double row cylindrical roller bearing |
| Bore d | 280 mm |
| Outer dia. D | 420 mm |
| Width B | 106 mm |
| Weight | ≈ 50 kg |
Designation meaning and notes
- NN: double row, ribs on the inner ring.
Dimensions are standard catalogue values; the weight is an approximate calculation. Please confirm before ordering.
Common suffixes for NN3056
| NN3056 K | Tapered bore, taper 1:12 |
|---|---|
| NN3056 KTN | Tapered bore, taper 1:12 · Polyamide cage |
Click a designation to open it in the bearing finder. Suffix usage can differ slightly between brands.
Matching seal (radial shaft seal)
280 × 420 × 20 mm
Other common widths: 280 × 420 × 15 mm
Seals this size are often made to order; send us the housing size and we'll confirm together.
The seal's inner diameter matches the shaft (280 mm) and its outer diameter matches the housing bore (420 mm); the width depends on the space in the housing. NBR (double lip, TC type) is recommended for general use and FKM (Viton) for high temperatures.
Quote for bearing and seal