Why is INTENSE™ introducing another Modular Pulley System?

There are already several modular pulley systems on the market today, so why would INTENSE™ introduce yet another one? There are several reasons:

  1. Less Belt Slippage - world class engineering allows us to produce pulleys with considerably less belt slippage
  2. Beautiful Finish - first class finish makes our pulley system the most attractive setup on the market
  3. Great Pricing - we offer the best priced, higest quality modular pulley system in this marketplace
The new INTENSE™ MPS hub is cut from 15-5PH stainless steel because this material is very durable and achieves a superior finish. The hub is machined in two lathe operations, one end after the other, producing a fine finish on all surfaces. Drill & tap is done in a mill operation and hub bores are honed to finish size within .0003", then washed and packaged.

For best fit and finish, both the hub and pulley are machined in three separate operations (two lathe operations and one mill operation each). The competitor's hub appears to be a very cheaply made part that was done in one lathe operation and one mill operation. That is why there is such a rough finish on the flat mating surface of their hub; it was cut with a parting tool. Their center bore is very rough and looks like it was done with a dull drill!

Their modular pulley design does not follow ANSI rib profile specifications. Our pulleys are designed properly to the correct ANSI specifications and are run in two lathe operations and one mill operation to cut the bolt circle holes. The material is cold drawn 6061 T6 or 7075 T6. Cold drawn aluminum is more expensive than extruded 6061, but it is structurally more stable and more importantly has fewer impurities that may show in the fine anodized finish.



This is a closeup of our competitors pulley and it shows a lower radius of approximately .030". Please note there is no radius at the top of the profile, not even an edge-break! What our competitor calls a 2.80" as measured over the ribs has actually a smaller pitch diameter than what a normal 2.80" pulley would measure. Considering that the rib angularity is incorrect and does not match the belt, this condition will cause slippage and belt wear.



You can see in this closeup of our pulley how the lower and upper radius and the rib angularity are cut correctly to match the belt. This is the proper way to machine a pulley for optimum belt contact and to eliminate premature belt wear.



Here are two pictures comparing our belt contact to the competitor. Our pulley is in clear aluminum, the competitor in black anodize. Note the small spaces inside the grooves of the competitors pulley. It's not making contact with the belt!

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