Joint GN 648.1-20-M20x1.5-W Z026893

Ball joint with internal thread – a reliable connection in your installation

The GN 648.1-20-M20x1,5-W joint is a connecting element widely used in machines and equipment requiring precise and durable connections. Made of blue passivated galvanized steel, it guarantees corrosion resistance and long-term operation. This particular model is characterized by an internal thread M20x1,5, which ensures compatibility with various structural elements.

Design and materials

The GN 648.1 joint is available in two versions: N (brass/steel – lubrication possible) and W (galvanized steel with PTFE insert – self-lubricating). This model, marked as “W”, is distinguished by its self-lubricating construction thanks to the use of a PTFE insert. This solution minimizes the need for maintenance and ensures smooth operation for a long time, especially in applications where regular lubrication is difficult or impossible. The joint body is made of galvanized steel, which further increases its resistance to external factors. The inner ring is made of hardened, ground and polished steel (100Cr6), which ensures high resistance to loads and abrasion.

Application and compatibility

GN 648.1 joints are designed as replacements for ball joints compliant with DIN ISO 12240-4 series K standard (formerly DIN 648 K). They are ideal for applications requiring load transfer in various directions, compensation for misalignment and enabling rotational movement. They will work in:

• Industrial equipment
• Specialized machines
• Tooling
• Furniture structures (e.g. adjustable legs)
• Applications requiring precise positioning of elements

It is worth remembering that GN 648.1 joints are available in various sizes and with different types of threads, allowing them to be adapted to individual project needs. The choice of the appropriate model depends on the loads, operating conditions and lubrication requirements. The self-lubricating “W” variant is particularly recommended for applications where access to the lubrication point is limited or impossible.