2012 Taper Lock Bushings

Tapered locking bushings are typically used for tapered assemblies. This flange-like device is used to mount different elements of a transmission, such as chains, belts, pulleys, or gears. The sleeve is manufactured to ISO standards. You will need to order the appropriate tapered lock bushing separately from the hub and axle assembly. The benefits of using tapered locking bushing are numerous.
The size chart below provides standard sizes of tapered lock bushings. While this chart helps meet basic dimensional requirements, it is important to note that actual bolt holes may differ from those in the dimensional chart. Listed here are a few important details to keep in mind before purchasing a tapered locking bushing. The information in this article may be out of date or inaccurate. Please contact the manufacturer for the latest information.
Tapered lock bushings are 1 of the most common types of flangeless bushings. Bushings of this type are made of precision cast iron. It is computer etched for size identification. High-strength screws attach the tapered portion of the assembly to the hub. This strong connection allows the transmission of high torques. In sprocket installation, tapered lock bushings ensure proper sprocket installation and easy alignment.

Dimensions of the 1210 Taper Lock Bushings

  • Bushing Number: 1210
  • Bore: 1″、1/2″、10mm、11/16″、11mm、12mm、13/16″、14mm…..
  • Dimension (A): 2-3/4″
  • Dimension (B): 1-1/4″
  • Dimension (D): 2-5/8″
  • Number Of Set Screws: 2
  • Threads: 7/16″
  • Length: 7/8″
  • Wrench Torque: 280 LBS
  • Weight: 1.4 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 1 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 5 (5) installation instructions.

The 2012 Tapered Locking Bushings serve a variety of purposes. If you need more information, please contact MDS today! We are happy to answer any of your questions. Once you have selected your 2012 Taper Lock Bushing, you are on your way to a safer ride!
In addition to being available for a variety of power transmission applications, the TB 2012-25-taper bushing is also a standard tapered bushing with a locking mechanism. They have a tapered outer surface and a cylindrical inner bore with a tolerance of H7. These bushings are used in a variety of industrial environments, including for securing standard and non-standard pulleys and couplings. They also have standardized keyways.

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