ACHE Sprockets

B&B Manufacturing has expanded our ACHE Sprocket offering to allow for possible reducer elimination or reduction. 


ache sprocket diagram

Taper-Lock® ACHE sprockets have a longer bore length in order to withstand high torque. They are designed with extra mass around the shaft so that the sprockets remain stable. However, B&B's ACHE offering is mainly QD® bushed. The QD® design transmits the required torque without unnecessary, additional weight around the shaft. This provides the benefits of reduced bearing and overhung loads. 


Larger sized sprockets are offered in HTD® to ensure proper chordal action. Chordal action is the rise and fall of the belt tooth in and out of the sprocket teeth. Without correct belt-sprocket tooth engagement, products can get caught, slip, or fall between the belt and sprocket.

 ACHE Sprockets are used in cooling and condensing in industries like: Oil and Gas production, processing, and transport; HVAC; Power generation, and more.


Flanging for ACHE -(Fin-Fan™) Pulleys/Sprockets

Sizing available for 14MM sprockets from stock 

synchronius pulley                     flanges in inventory

Flanging and Nickel Plating are available on any Synchronous Polley

B&B Advantages

  • B&B Knowledge of ACHE Sprocket flanging requirements
    • When 2 Point Drives have center distances that are greater than 8x the diameter of the smaller sprocket, both sprockets should be flanged on both sides.
    • On vertical drives, 1 sprocket should be flanged on both sides, and all the other sprockets in the system should be flanged on the bottom side only.
  • Reduced Acquisition Costs
    • B&B holds sprocket inventory in La Porte, IN (no excess freight charges from marketer to machine shop to attach flange(s)).
    • We manufacture flanges in-house (less delays since there is no wait on outside sources to import the flanges, minimizing costs).
  • B&B holds sprocket inventory in La Porte, IN (no excess freight charges from marketer to machine shop to attach flange(s)). 
  • Consistency

Synchronous Pulleys              Sprocket Flanging             ACHE Sprocket flanging


Nickel Plating for ACHE (Fin-Fan™) Pulleys/Sprockets

Why Nickel Plating?

  • RUST!
  • Rust, corrosion, or wear of the sprocket can become severe enough to change the sprocketgroove shape, which will have a negative impact on belt life for all belt constructions.
Rsuted Synchronous Pulley

Without Nickel Plating


Nickel Plated Sprocket

Nickel Plated


Nickel Plating Process

  • Maximum Nickel-Plating Thickness : 0.001 – 0.0015”
  • Electroless Nickel Plating combines resistance to wear and corrosion with excellent adherence to all metals
  • B&B Manufacturing follows ASTM B733 Type IV SC3 nickel plating pulleys/sprockets
    • Type IV: 5-9% phosphorous (medium phosphorous)
    • SC3: Moderate Service 0.001 in minimum
  • Flanges are nickel plated at the same time if required
  • Q.D.®, Taper-Lock®, and Double Split Taper bushings available for nickel plating also


timing pulley  rooftop hvac nickel plated sprocket    plated pulley    pulley with nickel plating    nickel plated pulley    nickel plated pulley sprocket    pulley sprocket

Technical Resources

View our Flanging for Ache Specifications here.

Contact One of Our Sales Representatives Today
or call us today at | 877.787.4022

Taper-Lock®, HTD®, Poly Chain®, PowerGrip®, GT2®, and GT3® are trademarks of the Gates® Corporation.
QD® is a trademark of TB Woods, Inc.
FHT® is a trademark of Fenner Precision.