Category Archives: Testing

Thrust Bearing Test

Posted on August 12, 2013 by dave49

If we were perfect fishermen, our reels would not need any provision for thrust loads on the spool (i.e., loads in the direction of the spindle axis). A fish on the line creates a torque on the spool, which we … Continue reading →

Posted in Testing, Thrust Bearing | 3 Comments

Hardness Test

Posted on September 5, 2012 by dave49

On 15 Dec 2012, I posted about some aluminum rod stock that was supposed to be 7075, but might be something else because it did not anodize properly. I theorized that it might be 2024 (a known poor anodizer) because … Continue reading →

Posted in Measuring, Testing | Leave a comment

Pawl Testing at Higher Speed

Posted on August 23, 2011 by dave49

This is the seventh posting in this blog on durability testing of ratchet and pawl materials. Previous posting are: 1. Picture of tester based on a “gearmotor”, 25 rpm (30 May 2010) 2. First results from tester (22 Aug 2010) … Continue reading →

Posted in Click, Pawl, Testing | 6 Comments

Two More Plastics for Pawls

Posted on May 7, 2011 by dave49

Someone brought Ertalyte and Ertalyte TX to my attention as possible materials for pawls. The data sheet properties looked promising, so I bought a small quantity of each and made pawls. I tested these on the low speed tester, as … Continue reading →

Posted in Materials, Pawl, Testing | Leave a comment

Pawl Wear Test, Higher Speed

Posted on April 13, 2011 by dave49

My original pawl wear test (post of Nov. 16, 2010 ) used a gearmotor that ran at 20 rpm.  The wear pattern on a pawl showed an impression on the flank of the pawl where each ratchet tooth initially made contact, … Continue reading →

Posted in Pawl, Testing | 3 Comments

Pawl Wear Test, Redone

Posted on November 16, 2010 by dave49

Refer to earlier posts titled “Results of Pawl Wear Test” (Aug 2010) and “The gearmotor that wasn’t a gearmotor” (Sept 2010). After discovering a possible misoperation of my first pawl test fixture, I built a new tester using a real … Continue reading →

Posted in Click, Pawl, Testing | Leave a comment

The gearmotor that wasn’t a gearmotor

Posted on September 6, 2010 by dave49

First of all, I must say that the pawl test data that I previously posted (Aug. 22, 2010 : Results of Pawl Wear Test) cannot be relied upon. I now realize that the “gearmotor” that I used for this test … Continue reading →

Posted in Click, Pawl, Testing | Tagged , | Leave a comment

Loctite Assembly of Spool

Posted on August 27, 2010 by dave49

My first reel design has a multi-part spool: anodized aluminum for the spool ends and copper alloy (bronze) for the shaft. I could have saved weight by using an aluminum shaft, but I could not reconcile myself to having aluminum … Continue reading →

Posted in Bonding, Spool, Testing | Tagged , | Leave a comment

Results of Pawl Wear Test

Posted on August 22, 2010 by dave49

Some background for this post is in a discussion on Rod and Reel Maker’s Forum. The discussion made me think of using plastic for the pawl. (In my reel design, replacing a worn pawl takes only a screwdriver, for backplate … Continue reading →

Posted in Click, Pawl, Testing | Tagged , | 1 Comment

Life Test of Pawl and Ratchet

Posted on May 30, 2010 by dave49

To find better materials for the ratchet and pawl, I made this test fixture from a 25 rpm gearmotor. Initially the ratchet is 642 bronze and the pawl is 6061T6 aluminum. I expect the aluminum to wear quickly. May try … Continue reading →

Posted in Click, Pawl, Ratchet/Gear, Testing | Tagged , | 4 Comments