Pulleys

Which pulley would you use?

The pulley on the right is manufactured exactly according to Piper specifications and is certified for use on Piper aircraft from the J-3 Cub to the PA-22-135 Tri-Pacer.  Is is manufactured from phenolic and the grip (the unthreaded part of the bolt) on the bolt that secures the pulley in the bracket serves as the shaft on which the pulley is mounted.

The pulley on the left is an after-market product (Javron, Inc.).  It is CNC machined to the correct dimensions from aircraft grade aluminum, anodized, and fitted with a bushing as the main bearing surface. It is also certified for use in Piper airplanes from the J-3 Cub to the Tri-Pacer. 

Yeah. Me too.  There are plenty of Piper aircraft flying around today that are fitted with the phenolic pulley, but the aluminum pulley, with the bushing, gives me a much higher level of confidence.

These pulleys are aft aileron pulleys.  More details as I get the brackets fabricated.