NSK Post Code
Source: China Bearing Network | Time: 2013-11-28
Understanding the NSK post code system is essential for identifying and selecting the right bearings for specific applications. The post code provides detailed information about the bearing's design, materials, and special features. Here's a breakdown of common NSK post codes and their meanings: 1. **Internal Design** - C: Standard internal design - CA: Brass solid cage - CD: Stamped cage, high load capacity for spherical roller bearings - E: High load cylindrical roller bearing - H: High load thrust spherical roller bearing 2. **Material Composition** - G: Inner and outer rings made of carburized steel; rolling elements are also carburized steel - H: Inner and outer rings made of stainless steel; rolling elements are stainless steel 3. **Cage Type** - M: Copper alloy solid cage - T: Synthetic resin cage - W: Stamped cage - V: No cage (open design) 4. **Seals and Shields** - Z: One side with steel dust cover - ZS: One side with steel dust cover and seal - ZZ: Both sides with steel dust covers - ZZS: Both sides with steel dust covers and seals - D: One side with rubber seal - DD: Two sides with rubber seals - V: One side with non-contact rubber seal - VV: Two sides with non-contact rubber seals 5. **Outer Ring Shape** - K: Tapered bore, taper ratio 1:12 - K30: Tapered bore, taper ratio 1:30 - E: Outer ring with cut or oil hole - E4: Oil groove on the outer ring, with oil hole - N: Outer ring has a stop groove - NR: Outer ring has a stop groove and a retaining ring 6. **Mounting and Accessories** - DB: Back-to-back arrangement - DF: Face-to-face arrangement - DT: Series arrangement - +K: Outer ring with a pad - +L: Inner ring with a pad - +KL: Both inner and outer rings with pads - H: Adapter sleeve - AH: Open sleeve - HJ: L-shaped gear ring 7. **Special Standards** - X26: Operating temperature below 150°C - X28: Operating temperature below 200°C - X29: Operating temperature below 250°C - S11: Spherical roller bearings, operating temperature below 200°C These codes help engineers and technicians quickly identify the specifications of NSK bearings, ensuring proper selection and application in various industrial environments. --- **Related Bearing Knowledge** - The manufacturing process of bearing steel balls - Common NTN bearing data and its use in machine tool spindles - Characteristics of different types of bearing steel - Gas lubrication bearings and their advantages This article was originally published on China Bearing Network. For more information, visit [China Bearing Network](http://www.chinabearing.net). Previous: The use of double row angular contact ball bearings Next: How to correct paper machine bearings online?
Led Fishing Net Light,Led Fishing Net Mesh String Light,Solar Led Fishing Net Lights,Halloween Spider Web Light
Tianjin Jinji Optoelectronic Technology Co., Ltd. , https://www.tjjjgd.com