Silindirik makaralı rulmanlar

bu NU 318 ECJ is a type of cylindrical roller bearing. Here’s a breakdown of its designation and key features:

1. NU Designation:

• NU indicates the type of cylindrical roller bearing. Bu durumda:
  • NU: The bearing has two fixed ribs on the outer ring and no ribs on the inner ring. This design allows the inner ring and rollers to move axially relative to the outer ring, making it suitable for applications where axial displacement needs to be accommodated.

2. 318:

• This is the size designation of the bearing.
• 3: Indicates the series (medium-heavy duty).
• 18: Refers to the bore diameter. For metric bearings, the bore diameter can be calculated as:
  • Delik çapı (Mm) = 18 × 5 = 90 Mm.

3. ECJ:

• EC: Stands for “Optimized Internal Design.” This indicates that the bearing has an enhanced internal geometry, providing higher load capacity and better performance.
• J: Refers to the material and design of the cage (retainer). Bu durumda, J indicates a pressed steel cage.

Key Features of NU 318 ECJ:

• Type: Cylindrical roller bearing (NU type).
• Delik Çapı: 90 Mm.
• Dış çap: Approximately 190 Mm (standard for NU 318 series).
• Genişlik: Approximately 43 Mm (standard for NU 318 series).
• Cage: Pressed steel cage (J).
• Load Capacity: High radial load capacity due to the EC (optimized internal design).
• Axial Displacement: Suitable for applications requiring axial displacement of the shaft relative to the housing.

Uygulama:

NU-type cylindrical roller bearings are commonly used in:

• Elektrik motorları.
• Şanzımanı.
• Endüstriyel makineler.
• Applications where high radial loads and axial displacement are present.

If you need further details like exact dimensions, Yük Değerleri, or specific application guidance, Bilmeme izin ver!