NNU4938 Bearing
Double row cylindrical roller bearing
- Bore d190 mm
- Outer dia. D260 mm
- Width B69 mm
- Weight≈ 10 kg
High rigidity and precision: machine-tool spindles, mill rolls.
Technical data
| Bearing designation | NNU4938 |
|---|---|
| Type | Double row cylindrical roller bearing |
| Bore d | 190 mm |
| Outer dia. D | 260 mm |
| Width B | 69 mm |
| Weight | ≈ 10 kg |
Designation meaning and notes
- NNU: double row, ribs on the outer ring.
Dimensions are standard catalogue values; the weight is an approximate calculation. Please confirm before ordering.
Common suffixes for NNU4938
| NNU4938 K | Tapered bore, taper 1:12 |
|---|---|
| NNU4938 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)
190 × 260 × 15 mm
Seal weight: ≈ 0.44 kg
Other common widths: 190 × 260 × 12 mm, 190 × 260 × 20 mm
The seal's inner diameter matches the shaft (190 mm) and its outer diameter matches the housing bore (260 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 sealAll seal sizes and matching bearings →