Hebei Hankai tcv oil seal

1. Prevent Leakage By creating a tight seal around the shaft, oil seals effectively prevent lubricants from leaking out, which is essential for the efficient operation of machines.

5. Material Compatibility Ensure that the seal material is compatible with the hydraulic fluid being used. Different fluids can react differently with seal materials, potentially leading to swelling, hardening, or deterioration.

4. Self-Drilling Anchors These anchors come with a sharp tip, allowing them to be easily installed without pre-drilling a hole. They are especially useful for quick, hassle-free installations in drywall.

While not fasteners in the traditional sense, washers are often used in conjunction with bolts, nuts, and screws to improve their performance. Washers distribute the load of the fastener over a larger surface area, helping to prevent damage to the material being fastened and reducing the risk of loosening due to vibration. There are several types of washers, including flat washers, lock washers, and fender washers, each serving specific functions in various applications.

4. Load Capacity The load-bearing capacity of an M20 foundation bolt can vary depending on the grade of steel used. Common grades include 4.6, 8.8, and higher grades, with 8.8 indicating a high-strength bolt capable of bearing significant tensile and shear loads.

Expandable anchors, often known as expansion anchors, are fasteners designed to secure objects to solid materials such as concrete, brick, or stone. The fundamental principle behind their design is the ability to expand under pressure, thereby creating a secure grip within the base material. When installed, the anchor's body expands outward, locking itself firmly in place, making it suitable for heavy loads and dynamic forces.