Cam Lean???
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I'll try to answer!
what I call cam lean is when you draw your bow and as your cam rolls over it tips to oneside! usually at full draw! I had one bow do this in the last 13 years and it was the bushing wearing out even though I have my own bow press and kept it well lubed and maitained! but i probably shot 100 to 200 arrows a day! But still the company changed the bushing on there new bows! Maybe that will help!
what I call cam lean is when you draw your bow and as your cam rolls over it tips to oneside! usually at full draw! I had one bow do this in the last 13 years and it was the bushing wearing out even though I have my own bow press and kept it well lubed and maitained! but i probably shot 100 to 200 arrows a day! But still the company changed the bushing on there new bows! Maybe that will help!
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I just purchased my 1st Bowtech, the Alligence. It has what I would call severe cam lean. It is brand new so it cannot be anything that is worn out. It must be inherent in the design of the bow. I have not noticed any accuracy problems because of this. I have heard alot of talk about this "cam lean". Can anyone give me an answer on why "cam lean" would be bad or why it should'nt cause any problems.
Not familar with bowtech
I wish I could help i'm not a bT guy! someone on here will probably help that knows them well! the only thing I would say is you can check for play in your bushing without drawing your bow and taking you forefinger and thumb at top and bottom and see if there is alot of play! On some split limb bows you cam move it but the limbs are actually moving not the bushing. so watch the limbs. I agree it never bothered my accuracy either they wore in that way the bow shot great! just the worry of if it was enough to change!
I wish I could help i'm not a bT guy! someone on here will probably help that knows them well! the only thing I would say is you can check for play in your bushing without drawing your bow and taking you forefinger and thumb at top and bottom and see if there is alot of play! On some split limb bows you cam move it but the limbs are actually moving not the bushing. so watch the limbs. I agree it never bothered my accuracy either they wore in that way the bow shot great! just the worry of if it was enough to change!
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3,082 Posts
Cam lean is when one or both cams is not in line with the other cam/idler wheel and/or string. There are two main reasons for cam lean.
1. Worn out bearings or bushings
2. One side or your split yoke on the buss cable is too long or too short.
Cam lean can cause a bunch of different problems, but mainly...
1. An awkward position for your center shot
2. Accessive serving wear at your cams
3. Inaccuracies because of sloppy play in your bushings if they are worn out.
Check your cam lean by placing an arrow flush against both cams/idler wheel and run it down along your string. When the arrow is flush against the cam/idler wheel, the arrow should extend right down, along side of the string...parallel with the string. If your arrow runs into the string or away from your string as you get closer to your nock point, check your split yoke and/or your bushings.
Hope this helps!
1. Worn out bearings or bushings
2. One side or your split yoke on the buss cable is too long or too short.
Cam lean can cause a bunch of different problems, but mainly...
1. An awkward position for your center shot
2. Accessive serving wear at your cams
3. Inaccuracies because of sloppy play in your bushings if they are worn out.
Check your cam lean by placing an arrow flush against both cams/idler wheel and run it down along your string. When the arrow is flush against the cam/idler wheel, the arrow should extend right down, along side of the string...parallel with the string. If your arrow runs into the string or away from your string as you get closer to your nock point, check your split yoke and/or your bushings.
Hope this helps!
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3,459 Posts
Bows that exhibit cam lean throughout the draw cycle are NOT designed that way because it would then cause far too many inconsistencies during the draw cycle with differing weight limbs, differing individual setups for angle of cableguard/sidepull, etc. A bow is supposed to track straight forward, and straight back. Any imparted torque the shooter may induce is another individual element, and anything less than straight to start with is asking for trouble IMHO. Many solocams had this problem early on due to only having one yoke at the top limb and an imbalanced system. This has been rectified to an extent by beefing up the bottom cam and designing a geometry that does not induce too much sidepull. The rest is then taken out with a simple twist on the upper yoke. Hybrids have a better balanced system and thus any slight lean can be easily taken out with a twist or two on one side of the upper yoke.
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10,938 Posts
Ah, the old "cam lean" issue. Thus the reason I finally found my way back to a dual cam system again.
Without getting into too much technical stuff I can refer you to Letter #5 at www.spot_hogg.com. They have a very detailed description of what can cause cam lean and what some of the disadvantages of it are.
With single cams it's not an isolated thing, but very common. And very undesireable. And, IMO, an issue that the archery engineers need to address.
Without getting into too much technical stuff I can refer you to Letter #5 at www.spot_hogg.com. They have a very detailed description of what can cause cam lean and what some of the disadvantages of it are.
With single cams it's not an isolated thing, but very common. And very undesireable. And, IMO, an issue that the archery engineers need to address.
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