ザ NU208E.MI is a specific type of cylindrical roller bearing. Here’s a breakdown of its designation and features:
1. NU208E.MI Breakdown:
- NU: Indicates the bearing type. “NU” means it is a cylindrical roller bearing with two flanges on the outer ring and no flanges on the inner ring. This design allows the inner ring to move axially relative to the outer ring, making it suitable for applications with axial displacement.
- 208: Refers to the bearing size. ザ “2” indicates the series (ライトデューティーまたはミディアムデューティー), and “08” represents the bore diameter. For metric bearings, the bore diameter is calculated as 08 × 5 = 40 ミリメートル.
- E: Indicates an optimized internal design with a larger roller set, providing higher load-carrying capacity compared to standard designs.
- MI: Specifies the bearing’s cage material and design. “MI” typically means the cage is made of machined brass, which is durable and suitable for high-speed or high-temperature applications.
2. 主な機能:
- 種類: Cylindrical roller bearing (NU type).
- 内径: 40 ミリメートル.
- 外径: 80 ミリメートル.
- 幅: 18 ミリメートル.
- 負荷容量: High radial load capacity due to the “E” design.
- 籠: Machined brass cage (MI) for strength and durability.
- Axial Displacement: Allows axial displacement of the shaft relative to the housing.
3. アプリケーション:
- Suitable for applications with high radial loads and moderate axial displacement.
- Commonly used in:
- 電動機.
- ギアボックス.
- 産業機械.
- ポンプとコンプレッサー.
4. 利点:
- 高いラジアル荷重容量.
- Accommodates axial displacement.
- Durable brass cage for high-speed or high-temperature environments.
- Long service life with proper lubrication.
5. メンテナンス:
- Ensure proper lubrication with grease or oil suitable for the operating conditions.
- Regularly check for wear, ミスアラインメント, or contamination.
定格荷重などの詳細が必要な場合, tolerances, or specific dimensions, メーカーのデータシートまたは技術文書を参照してください.
