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**MCSS** · 11-13-2005, 06:32 PM

Re: Urethane Balldoor Broke In 2

In my opinion those urethane rings just suck. I tried them on a pair and they both broke after a month. Get the AMF metal rings, or the lifelong rings. Get them nice and tight and you won't have problems with them for a few years.

Mike

**AMF-Holland** · 11-13-2005, 06:53 PM

**Ten Pounds** · 11-13-2005, 07:08 PM

**Ten Pounds** · 11-13-2005, 07:11 PM

**Lafarge..** · 11-13-2005, 07:23 PM

Re: Urethane Balldoor Broke In 2

Yeah I don't use anything but steel. The guy here before me ordered enough urethane ones for the whole house and they are still setting in a box because I refuse to use them. You can't fix them when they break. At least the steal ones you can weld if they break.

*70*PinMonkey · 11-14-2005, 01:40 PM

Re: Urethane Balldoor Broke In 2

This is just a theory. First off, the Lifelong rings are great. The urethane ones are a great idea, but we broke several of ours too. I seen a lot of mechanics just put them in in such a way that the "flaps" overlap. The rear part of the doors that you are supposed to cut to meet. Sometimes I seen em installed just overlapping. This puts wierd tension on the rings and I think contributes to premature breakage. The doors we put in that we cut first to fit, not overlap, have held up nicely. Could be wrong though.

**Table Head** · 11-14-2005, 04:08 PM

Re: Urethane Balldoor Broke In 2

When we first conveted to PBLs we had sooo many ball door rings (metal) break. This caused a lot of fired up customers cause there balls were getting scratched up really bad. We thed called up amf and they sent out the urethane ones. They have worked for a long time 2 or so years. Last year I bought some from amf and they had done some modifications new type of urethane and it's thicker than the ones we have. Those have been the best ball door rings I've used so far. The only bad thing is the color (red), makes me think there is a ball down there just a quick glance.

**AMF-Holland** · 11-14-2005, 05:07 PM

**bent wrench** · 11-17-2005, 12:24 AM

Re: Urethane Balldoor Broke In 2

Possibly a bad batch, BUT! it is very important that all bolts are in place. I have seen guys leave that 1 bolt out just, as we all know, is a pain in the azz to get to. if ring not solid, it will break way premturely.

**AMF-Holland** · 11-17-2005, 03:01 PM

**triac** · 11-17-2005, 03:26 PM

Re: Urethane Balldoor Broke In 2

I don’t know if anybody told you this…… but you’re supposed to remove the bolts before taking the ball door out with a crow bar. [img]/content/btubb/images/%%GRAEMLIN_URL%%/laugh.gif[/img]

Defiantly looks like a manufacturer defect. I’ve never seen nothing like that happen to a urethane ball door.

BG · 11-17-2005, 11:06 PM

Re: Urethane Balldoor Broke In 2

I ordered new urethane rings from amf. I received one and the other has been backordered FOREVER it seems (2 months now). I was moving parts around and I dropped the urethane ring on the floor...IT BROKE in 4 pieces..it almost looks like Peter's broken door but not as many pieces. I'm guessing it is definitely a bad batch.

**8270king** · 11-17-2005, 11:18 PM

Re: Urethane Balldoor Broke In 2

I have only had one lifelong ring break in 5 years.

**Jimmy Jam** · 11-18-2005, 02:05 AM

Re: Urethane Balldoor Broke In 2

Yep, looks like a goof-up.
I like the AMF urethane ones. Not there first generation that broke. The instructions say to cut 1 to fit but I cut both of them so there equal. I only have 2 or 4 sets in. They have been in a few years.
On my metal ones I would cut the top of the ring and file the sharp edges down. I theorized it would releave stress on the ring caused by vibration and movement of the kickbacks and pit. It made a difference. The bolts stay tight now and they dont crack very often.

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