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2525 Taper Lock Bushings

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2525 Taper Lock Bushings

The 2525 Taper Lock Bushing is a standard tapered bushing used as a drive shaft locking mechanism. These bushings are manufactured to H7 tolerances and have standardized keyways to prevent axial displacement. They are available in standard and metric bores. To replace them, you can purchase the 2525-KIT Replacement Bushing and Bolt Kit. These kits are the best choice for industrial, commercial, and industrial applications.

Dimensions of the 2525 Taper Lock Bushings

product data

  • Bushing Number: 2525
  • Bore: 1"、1/2"、10mm、11/16"、11mm、12mm、13/16"、14mm.....
  • Dimension (A): 3-3/8"
  • Dimension (B): 2-1/2"
  • Dimension (D): 3-1/4"
  • Number Of Set Screws: 2
  • Threads: 1/2"
  • Length: 1"
  • Wrench Torque: 430 LBS
  • Weight: 4.7 LBS


1. Clean all oil, dirt, and paint from the shaft, bushing holes, bushing exterior, and bores of components (sprockets, pulleys, etc.).
2. Insert the bushing into the assembly. Match hole patterns, not threaded holes (each hole is threaded on one side only).
3. Thread the set screw or cap screw into the half-threaded hole shown below. Install the assembly on the shaft.
4. Alternately set the torque setting or cap screw* to the recommended torque setting in the table below.
5. Fill all unoccupied holes with grease.



1. Remove any retaining or cap screws.
2. Insert the set screw or cap screw into the above hole.
3. To reinstall, complete all five (5) installation instructions.


In many cases, this type of bushing will be a good choice, but in some specific cases, it may not be suitable. Below are some examples of situations where you may need to use locking bushings and their benefits. Read on to learn more! Now you can start installing locks on your car!
Taper-Lock bushings are an excellent choice for installing pulleys on shafts. These bushings have flangeless tapers and are secured to the shaft with set screws. Unlike flanged bushings, tapered locking bushings have a smaller load center, so you don't need to worry about them being too tight. Due to their taper, they also help stabilize overhanging loads. Cone lock sprockets are available in a variety of sizes and are commonly used to mount pulleys and chains.
Keyless shaft locking allows more torque transfer for a given diameter shaft. They will also keep the stress evenly distributed across the outside and inside diameters of the shaft, rather than concentrating it in the keyway. They can also cause thin hubs to crack under high pressure. Therefore, you should look for shafting made of walls of minimum thickness. When purchasing a locking bushing, make sure the wall thickness of the shaft is appropriate for the type of application you have in mind.

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