How to Insert and Remove a Tapered Bushing in a Pulley
Surely you have encountered connecting a gear to a shaft or a pulley to a drive shaft.
Among the various options, connecting a gear to a shaft or a pulley to a drive shaft through clamping devices and conical bushings can be an appropriate choice.
These connection systems, although rarely used especially in situations with particular technical requirements, are indeed very advantageous in various contexts and for different reasons, and it is also very easy and practical.
In this video we created in our warehouse, we show you how easy it is to mount the conical bushing
Here are some advantages of shaft connections using Locking Assemblies or Conical Bushings:
- A precise fitting without play allows for perfect control of the positioning of the fitted gear as if it were welded or made in one piece with the shaft
- The elimination of play helps to avoid the formation of corrosion due to friction resulting from the micro-vibrations introduced by imperfect concentricity of the shaft to the housing
- Avoiding the increase of play between the keyway and the key itself for applications with frequent start-stop or frequent changes in direction. For example, if you have a servo motor fitted with a key on a pulley/gear and require high dynamics and high positioning precision, the key connection should preferably be avoided
- The ease of assembly and disassembly helps reduce costs and speed up both maintenance and initial assembly timing
- Simplifying the phasing: if you need to connect 2 shafts with 2 gears each and want to phase the teeth of the gears, simply loosen the locking assembly screws, reduce friction, position the gears correctly, and re-tighten. With the key, you would have necessarily needed to request precise machining from your subcontractor
- Often one of the problems with using the key lies in the actual creation of the keyway on the shaft and on the gear hub.
- The conical bushings and prepared gears are off-the-shelf. How many of you have found yourselves pleading with the subcontractor for a single urgent machining?
- Time savings on assembly and disassembly
- Cost savings: it can be demonstrated that creating keyways on the shaft and gear is disadvantageous for small batches compared to purchasing a conical bushing
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