Big bag sewing machine

Latest articles



Popular articles

  • A double needle walking foot sewing machine combines the features of a walking foot and two simultaneous needles. This unique design allows for even fabric feeding and precise stitching, making it ideal for working with multiple layers or slippery materials like satin and silk. The walking foot mechanism ensures that the top and bottom layers of fabric move together without slipping, preventing puckering and ensuring smooth, even stitches. The use of two needles means that sewists can create decorative double rows of stitching, which can enhance the overall aesthetic of the project.


  • The CB4500 leather sewing machine is a powerful and versatile tool that is essential for any professional or hobbyist working with leather materials. With its high-quality construction and advanced features, this machine can handle a wide range of projects with ease.


  • Applications


  • Portability and Storage


  • The Versatility and Efficiency of Commercial Zig Zag Sewing Machines


    • Latest articles

    Links

  • Viton (FKM/FPM) Oil Seals

  • In addition to their electrical properties, marine spark plug wires must also be flexible and durable enough to withstand the constant vibrations and movements experienced by boats
  • To maintain the spark plug valve cover gasket, follow these steps
  • agriculture
  • One key aspect that sets the 794 00055a spark plug apart is its potential for enhanced ignition capabilities. With improved heat range management, it can handle a broader range of operating conditions, from cold starts to high-performance driving. This adaptability translates into better fuel economy, reduced emissions, and increased engine longevity This adaptability translates into better fuel economy, reduced emissions, and increased engine longevity This adaptability translates into better fuel economy, reduced emissions, and increased engine longevity This adaptability translates into better fuel economy, reduced emissions, and increased engine longevity794 00055a spark plug.

  • After the oil seal is positioned in the groove, apply even pressure to the oil seal using a seal driver or a similar tool. This will help to seat the oil seal firmly in the groove and prevent it from moving during use. Make sure to apply the pressure evenly and gently, as applying too much force can damage the oil seal or cause it to deform.

  • High heat rubber gaskets are commonly used in industries such as automotive, aerospace, and manufacturing, where they are exposed to high temperatures and pressure on a regular basis. In automotive applications, these gaskets are used in engines, exhaust systems, and other areas where high temperatures are generated. They help to seal joints and connections, preventing exhaust gases and other fluids from leaking out and ensuring the proper functioning of the vehicle.
  • Silicone gasket sheets also provide excellent electrical insulation. They have a low dielectric constant and high dielectric strength, which make them suitable for use in electrical applications where insulation is critical. This，。

  •  

  • One of the key factors that determine the performance of a piston oil seal is its compatibility with the engine's oil
  • Over time, due to constant exposure to heat, pressure, and chemical exposure, these gaskets can wear out or become damaged. Signs of a failing spark plug valve cover gasket include oil stains on the engine, a burning oil smell, or even misfiring spark plugs Signs of a failing spark plug valve cover gasket include oil stains on the engine, a burning oil smell, or even misfiring spark plugs Signs of a failing spark plug valve cover gasket include oil stains on the engine, a burning oil smell, or even misfiring spark plugs Signs of a failing spark plug valve cover gasket include oil stains on the engine, a burning oil smell, or even misfiring spark plugsspark plug valve cover gasket. If left unchecked, it could lead to more severe issues like engine damage, necessitating costly repairs.


  • High-Pressure Rotary seals that are used for high-pressure applications have a solid cross-section, are developed to seal a pressurized lubricant, and possess hydrodynamic waves that encounter the pressurized lubricant. These fluid waves pump lubricant into the engaged sealing interface when the shaft spins.

    The introduction of skeleton     oil seals
    Generally said that the oil seal refers to the skeleton oil seal.The function of the oil seal is generally to isolate the parts that need lubrication in the transmission parts from the external environment, so as not to let the lubricating oil leak.The skeleton acts like the steel bars in a concrete member to strengthen and keep the seal in shape and tension.According to the structure, it can be divided into single lip skeleton oil seal and double lip skeleton oil seal.The auxiliary lip of the double lip skeleton oil seal plays a dust-proof role, to prevent the outside dust, impurities and so on into the machine.According to the frame type, it can be divided into inner frame oil seal, exposed frame oil seal and assembled oil seal.According to working conditions, it can be divided into inner frame oil seal, exposed frame oil seal and assembled oil seal.According to working conditions, it can be divided into rotating frame oil seal and round-trip frame oil seal.Used for gasoline engine crankshaft, diesel engine crankshaft, gearbox, differential, shock absorber, engine, axle and other parts.

    The skeleton oil seal structure is composed of three parts: oil seal body, strengthening framework and self-tightening spiral spring.The sealing body is divided into the bottom, waist, cutting edge and sealing lip according to different parts.Generally, the inner diameter of the skeleton oil seal in the free state is smaller than the shaft diameter, that is, it has a certain amount of interference.

    Therefore, when the oil seal is loaded on the oil seal seat and shaft, the pressure on the edge of the oil seal and the contraction force of the self-tightening spiral spring produce a certain radial tightening force on the shaft. After a period of operation, the pressure will rapidly decrease and even disappear. Therefore, the self-tightening force of the oil seal can be compensated at any time with the spring.

    HB bsetseals specialized in producing TC, SC, TG, TB, TA, DC, TCV, TCN, cassette, combi oil seals. The oil seals quality is very good and approved by customers from all over the world. We also can make mold for non-standard type and dimensions of oil seals.

  • Firstly, the 20% refers to the typical rubber content found in high-quality oil seals. This compound, usually a blend of synthetic rubber, contributes to the seal's flexibility and resilience. It enables the seal to maintain its shape under varying temperature conditions, from the cold rigors of winter to the heat of heavy machinery operation. The rubber also provides the necessary sealing force against leaks, preventing oil from escaping and contaminants from entering the system.

  • title=

  •  

  • Proper installation and maintenance of oil seals are also crucial to their effectiveness. A poorly installed oil seal can lead to oil leakage and machinery failure, while regular maintenance can help to prolong the life of the seal and prevent costly repairs. It is important to follow the manufacturer's guidelines for installation and maintenance to ensure that your oil seals perform at their best.

  • Figure 5 explains the JTEKT seal numbering system.
    Seal numbers consist of
    　(1) the seal type code,
    　(2) the spring code,
    　(3) the lip type code,
    　(4) the dimensional numbers, and
    　(5) the special type code,
    and Table 6 shows examples of each of these codes/numbers.

  • Nitrile Butadiene Rubber (NBR, nitrile)

  • • Hydrogenated nitrile rubber

  • oil

  •  

  • One of the main functions of the valve cover gasket assembly is to prevent oil leaks and keep the engine running smoothly. Oil leaks can be a significant issue as they can cause damage to the engine components and lead to decreased performance. The valve cover gasket assembly acts as a barrier between the oil in the engine and the outside environment, ensuring that the oil stays where it belongs.