JA QD Type Bushings

There are a few things to consider when choosing an enclosure. First, the material. There are 2 main types of bushings: those made of filled Teflon and those made of polyester resin. The former has the highest compressive strength, while the latter has a lower compressive capacity. Various industrial applications involve the use of casing. It is an excellent mechanical and chemical material with a wide range of properties. These compounds are also packaged according to national and international standards. Therefore, bushings are used in many different types of machines and equipment.

This JA bushing is a high-quality, extremely durable, and high-precision product made of solid steel. The sleeve assembly provides a safe, reliable connection between 2 objects with different electrical charges. They also prevent sparking by increasing the electrical conductivity of the component and reducing its resistivity, thereby minimizing the chance of spark formation. What really sets these JA QD style bushings apart is the extensive quality control program done to ensure you receive a consistent and high-quality product. JA bushings are widely used, most commonly used in sprockets, pulleys, and more! We make it easy to do business with us. Plus, we’re your one-stop-shop for almost any powertrain product! For more information or to get a great quote please contact us and we will be happy to assist you

Dimensions of JA QD Type Bushings

  • Bushing Type: JA
  • Bore Size: 1-1/16″、1-1/4″、1-3/16″、15/16″、24mm、30mm、38mm、7/16″、9/16″
  • Dimension (A): 0.375″
  • Dimension (B): 1.375″
  • Dimension (D): 2.000″
  • Dimension (E): 0.688″
  • Dimension (F): 0.563″
  • Dimension (G): 0.125″
  • Dimension (L): 1.000″
  • Bolt Circle: 1.665″
  • Set Screw Size: 10-24
  • Weight: 0.90 LBS

Standard Mounting

1. Make sure the cone on the bushing and the inside of the driven product is clean and free of oil or any anti-seize lubricant.
2. Slide QD bushing on a shaft, flange end first, then assemble key.
3. Place the QD bushing on the shaft. Use only a standard Allen key to tighten the set screw on the key (hand-tight). Don’t push too hard.
4. Slide the large end of the sprocket or other part taper hole into place over the cone, aligning the drilled bolt holes on the sprocket or other part with the taper holes in the bushing flange. Then assemble the pull-up bolt and lock washer.
5. Tighten the pull-up bolts alternately and evenly to the tightening levels shown in the torque table below. Do not use extensions on wrench handles. There should now be a gap between the face of the sprocket or other part hub and the flange of the QD bushing to ensure a satisfactory tapered grip and press fit. NOTE: This gap must not be closed.


Vibration isolation

Inertial guidance and navigation systems, radar components, and engine accessories require anti-vibration mounts. Bushings isolate vibration and provide a more robust design in these applications. Bushings help eliminate vibration-related operational challenges and help protect expensive equipment from damage.

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Q1. Are you a factory?
A. Yes. We are a factory with more than 15 years of manufacturing experience.

Q2. Is OEM and ODM service available?

A. Of course. We have many years of experience in OEM& ODM service.

Q3. I am buying from another supplier, but need better service. Would you match or beat the price I am paying?
A. We always feel we provide the best service and competitive prices. We would be happy to personalize a competitive quote for you; email us.

Additional information