5 inch pin

Sphiz21

New Member
Hi there all

I was just wondering if a ball with a 5 inch pin is considered to be a blemished ball or not. If so or if not, i was wondering what the size of this pin would do to the reaction of the ball

thank you, hope to hear from you soon
 
Depending on the type and make of ball (I can only really speak for Storm balls, as they are the ones I've had any extensive experience with) a 5 inch pin out is an advantage, as the drilling option are far more flexible, there is a lot more you can do with it when selecting your drilling layout.

But then that's a matter of opinion, I'm sure you could find heaps of people that can tell you different, but from my experience I've found the further outthe pin is, the more flexibility you have when choosing your layout.

hope this helps.
 
I have only ever owned one ball with a 5 inch pin, it was a columbia titanium (the green one)

From what I have heard there is a specialist drilling that can be done, which from vague memory is the pin is almost on the pap. Don't quote me on this though.

The 4 inch pins are great as this opens up lots of different ways to drill a ball, but from my experience a 5incher it is a prick of a thing to drill for it to roll consistently for practically every pattern cept for a pin at 12, or a 45deg pin.

Hope someone that is a reputable driller will be able to comment more on this (patrick, brando, ANYONE!!!)
 
quoted from ball reviews.com

'I drilled up an Au79 that had a 5.5" pin. Put the pin above the ring finger and the cg next to (approx 1' right of) the thumb hole. The ball did require a weight hole (positive thumb quad.). It give a very strong arcing reaction. Picks up a great roll in the mids and contunues well through the pins. Very nice reaction overall. I also had an older triton with a long pin. It was drilled with the cg near the center of the palm and the pin at approx. 2:00. This left the ball with about a 1" pin to PAP. This was a super layout for controlling jumpy backends... seemed to even out the wet/dry condition. Also had some success with this ball later on in tournaments when the lanes dried out. Note with this layout is that you have to be careful not to put the pin past your PAP, otherwise you will get a "full-roller" type of layout and likely roll/flare through fingers.

good luck!


hope this helps
 
Sphiz 21, the C.G. is the heaviest spot on the ball, the Pin is the heaviest spot on the inside of the ball, it actually holds the weight block in the mould when they pour in the reactive urethane liguid.

WE were told many years ago, when the Pin is 1" from the C.G. this means that the weight block is 1/64" off centre. The early Hammers had the pin almost on the C.G. ( J. P. Fabernich was the man that came up with the idea to put the weight block in the centre of the ball) the Hammers were the first to have Pins.

What a 5" pin means is that the weight block is 5/64" off centre, the ball companys started to off centre them on purpose, because some people found they could get more action out of them. This all means that the weight is shifted more to one side, thus you have a ball that has a higher mass bias. Mass bias is only a minor weight and has a small influence in the ball reaction, it usually means the ball holds it's action a little longer, this may be a plus, but if you are bowling on heavily oiled lanes, than you want a ball to turn-over quickly.

All the weight shifting has to do with wobble, as the ball wobbles down the lane it is not able to turn until with the help of friction the weights start to line up, than as the Americans would say the ball turns over, now it can hook. High R.G.'s in a ball, means it can create more flares, the flares on a ball are an indication, that the weights in the ball are starting to line, up as it travels through the oil.

Willey.
 
Basically, as I understand it, the 5 inch pin means, as Wlley said, the weight block has been shifted out of a straight line, and hence moving the static weights of the ball with it, and therefore creates more flare then a smaller pin out ball. This creates more hook, but less control.
Willey, as I understand, the C.G., or Centre of Gravity is not the heaviest part of the ball, but merely a point of the ball where the static weights from that point, in all directions, are 0. This may or may not be the heaviest part of the ball. Also, the pin is merely the top of the weight block, not nessacarily the heaviest part within the ball.

Later Da Cowman!
 
Cowman, the C.G. on a ball is found by floating the ball on an air stream, this causes the heaviest part to go down, and they use a foot control to punch a pin mark in the ball. So I would say the C.G. is the heaviest part of the ball. You could do your own test on a Do-Do scale if you wanted to, to find the heaviest spot on the ball.

The Mass Bias From what I understand, makes the ball hook longer, if you get my drift, meaning it will hook for a longer time before it sets. Some balls set faster, you can drill them to set faster, watch someone like Ann Maree Putney, her balls all seem to hook and set before hitting the pocket, I believe this helps her 10 pin carry, going back a few years Chris Batson always drilled his equipment with negative weights and his balls hooked and set early

As for the Pin, you are right, but most balls have the heaviest area at the top of the pin, and the weight block is heaviest in the centre, there are some balls that have lighter weight blocks, these are more for lope or dryer lane conditions.

Willey.
 
Willey, the centre of gravity (CG) is found by the ball floating on a air stream. Not the pin. Now that I think about it, the CG probably is the heaviest part of the ball. As by putting it on a air stream you would create a 'Top-end heavy' effect. This would result in the ball finding a point, which would be both on top and bottom, where the static weights, in all directions, from that point, are 0.
The pin signifies the top of the weight block. When the coverstock is formed around the core, it wraps around the pin and the weight block, the pin is then cut back so that the ball is a circle. That's my understanding.

Later Da COwman!
 
A 5 inch pin can be an asset or a hinderence depending on the balls top weight, with a lower top(under 3oz) drillings with the CG near your axis point come into play, a higher top takes that flexibility away but you can do some real strong drilling then with the pin near your vertical axis line and 3 3/8 from the PAP(with the cg anywhere from grip centre to stacked under the pin)
 
Back
Top Bottom