[quote]DoubleDuce wrote:
Every bar starts bending when any amount of weight is put on it.[/quote]
ohh you’ve done gone all physical on us now, look out![/quote]
Just noting the ambiguity of the question. It was asked like some bar at 299 pounds will be straight, but once you hit 300 it bends. It’s a continuous progression of bending from no load on.
It’s kind of like asking, “how many pieces of pie would I need to eat before I became fat?”[/quote]
I pity your wife & children!
I think we all understood the OPs question.[/quote]
Different bars vary wildly, and everyone has different opinions on what it means to “start bending”. I don’t think anyone understood the question really.
And yes, my wife is a very tolerant woman. Grant it, both her parents are engineers, so she’s used to it.
Are talking about how much until it plasticly deforms the bar, or how much until it’s noticeable, or how much until it affects the lifts being preformed?
I think anything beyond the bars limit will get into the plastic region. Meaning it will keep the shape of the bend.
There are fucking kids that load the bar up to 225lbs and place it accross a bench and do barbell rows. They literally bounce the middle of the bar off the bench for about 8 horrible reps and that will leave a bar bent for sure. You’ll know you have the shitty bar in your hands when the bar is in your hands for benching.
I have Seen a Racked Bar loaded with 405lbs, unracked, squat-racked without any noticeable bend. Same bar, same weight but a guy with smaller shoulder width made the bar flap like a birds wings.
So it is kind of an open question. It depends on what is being done, the placement of the bar and the type of bar. It does differ.
When I say bend, I’m referring to a difference you could note in the bar with the naked eye standing about 10ft away.
I’m looking at bars and package deals online, and I’m up in the air between the 1000lb 30mm and the 1500lb 32mm bar. So I unfortunately can’t just stack weight on and test. I’ll prolly never load more than 600 possibly 700 lbs on the bar. What I want to know is if I’m going to start having to be “afraid” as other posters have said about putting 315lb etc… on the bar. The question prolly would have been better phrased "If I have a 1000lb capacity bar, at what weight should I start getting worried about the weight that’s on it / will it significantly affect the mechanics of the lift. The primary lifts that I’d be doing would be dls, squats, pressing, pulling.
Another way of asking this might be, "Assuming I will prolly never put more than 600-700lbs on the bar, is there an advantage in having a 1500lb capacity bar over a 1000lb capacity bar, assuming same basic make and brand.
[quote]rores28 wrote:
When I say bend, I’m referring to a difference you could note in the bar with the naked eye standing about 10ft away.
I’m looking at bars and package deals online, and I’m up in the air between the 1000lb 30mm and the 1500lb 32mm bar. So I unfortunately can’t just stack weight on and test. I’ll prolly never load more than 600 possibly 700 lbs on the bar. What I want to know is if I’m going to start having to be “afraid” as other posters have said about putting 315lb etc… on the bar. The question prolly would have been better phrased "If I have a 1000lb capacity bar, at what weight should I start getting worried about the weight that’s on it / will it significantly affect the mechanics of the lift. The primary lifts that I’d be doing would be dls, squats, pressing, pulling.
Another way of asking this might be, "Assuming I will prolly never put more than 600-700lbs on the bar, is there an advantage in having a 1500lb capacity bar over a 1000lb capacity bar, assuming same basic make and brand.[/quote]
If you are not doing Oly lifts, I would suggest a Texas Power bar or the less expensive Jessup Power bar. They are rated to 1,500 lbs.
[quote]rores28 wrote:
When I say bend, I’m referring to a difference you could note in the bar with the naked eye standing about 10ft away.
I’m looking at bars and package deals online, and I’m up in the air between the 1000lb 30mm and the 1500lb 32mm bar. So I unfortunately can’t just stack weight on and test. I’ll prolly never load more than 600 possibly 700 lbs on the bar. What I want to know is if I’m going to start having to be “afraid” as other posters have said about putting 315lb etc… on the bar. The question prolly would have been better phrased "If I have a 1000lb capacity bar, at what weight should I start getting worried about the weight that’s on it / will it significantly affect the mechanics of the lift. The primary lifts that I’d be doing would be dls, squats, pressing, pulling.
Another way of asking this might be, "Assuming I will prolly never put more than 600-700lbs on the bar, is there an advantage in having a 1500lb capacity bar over a 1000lb capacity bar, assuming same basic make and brand.[/quote]
If you are not doing Oly lifts, I would suggest a Texas Power bar or the less expensive Jessup Power bar. They are rated to 1,500 lbs.
[/quote]
[quote]DoubleDuce wrote:
Every bar starts bending when any amount of weight is put on it.[/quote]
ohh you’ve done gone all physical on us now, look out![/quote]
Just noting the ambiguity of the question. It was asked like some bar at 299 pounds will be straight, but once you hit 300 it bends. It’s a continuous progression of bending from no load on.
It’s kind of like asking, “how many pieces of pie would I need to eat before I became fat?”[/quote]
I pity your wife & children!
I think we all understood the OPs question.[/quote]
Different bars vary wildly, and everyone has different opinions on what it means to “start bending”. I don’t think anyone understood the question really.
And yes, my wife is a very tolerant woman. Grant it, both her parents are engineers, so she’s used to it.[/quote]
In your defense, it looks like the bar bending equation is a very diffusive 4th order PDE so even more diffusive than the heat equation. But because there is no advection that means that any non-zero load instantaneously affects the entire domain. So yes, any load will bend the bar, even bar weight.
[quote]rores28 wrote:
When I say bend, I’m referring to a difference you could note in the bar with the naked eye standing about 10ft away.
I’m looking at bars and package deals online, and I’m up in the air between the 1000lb 30mm and the 1500lb 32mm bar. So I unfortunately can’t just stack weight on and test. I’ll prolly never load more than 600 possibly 700 lbs on the bar. What I want to know is if I’m going to start having to be “afraid” as other posters have said about putting 315lb etc… on the bar. The question prolly would have been better phrased "If I have a 1000lb capacity bar, at what weight should I start getting worried about the weight that’s on it / will it significantly affect the mechanics of the lift. The primary lifts that I’d be doing would be dls, squats, pressing, pulling.
Another way of asking this might be, "Assuming I will prolly never put more than 600-700lbs on the bar, is there an advantage in having a 1500lb capacity bar over a 1000lb capacity bar, assuming same basic make and brand.[/quote]
Then get a respectable one. I have a texas power bar personally. The cheaper ones will permanently deform before they reach capacity. I started with a cheap one (rated to 1000 pounds) and after a couple of years of use (max weights in the 5 to low 600’s) it’s now U shaped. If I’d bought a good bar initially, it would have saved me money.
The dangerous part is trying to lift with a bar that’s bent, it will torque your wrists and such if you don’t lifting it in the right direction. I wouldn’t worry too much about breaking it.
Combine that with the added benefit of good collars that don’t come lose and good knurling for grip and a quality bar is well worth it.
[quote]DoubleDuce wrote:
Every bar starts bending when any amount of weight is put on it.[/quote]
ohh you’ve done gone all physical on us now, look out![/quote]
Just noting the ambiguity of the question. It was asked like some bar at 299 pounds will be straight, but once you hit 300 it bends. It’s a continuous progression of bending from no load on.
It’s kind of like asking, “how many pieces of pie would I need to eat before I became fat?”[/quote]
I pity your wife & children!
I think we all understood the OPs question.[/quote]
Different bars vary wildly, and everyone has different opinions on what it means to “start bending”. I don’t think anyone understood the question really.
And yes, my wife is a very tolerant woman. Grant it, both her parents are engineers, so she’s used to it.[/quote]
In your defense, it looks like the bar bending equation is a very diffusive 4th order PDE so even more diffusive than the heat equation. But because there is no advection that means that any non-zero load instantaneously affects the entire domain. So yes, any load will bend the bar, even bar weight.[/quote]
HAHA! Thanks, I no longer feel like the nerdiest person in the thread.
[quote]rores28 wrote:
When I say bend, I’m referring to a difference you could note in the bar with the naked eye standing about 10ft away.
I’m looking at bars and package deals online, and I’m up in the air between the 1000lb 30mm and the 1500lb 32mm bar. So I unfortunately can’t just stack weight on and test. I’ll prolly never load more than 600 possibly 700 lbs on the bar. What I want to know is if I’m going to start having to be “afraid” as other posters have said about putting 315lb etc… on the bar. The question prolly would have been better phrased "If I have a 1000lb capacity bar, at what weight should I start getting worried about the weight that’s on it / will it significantly affect the mechanics of the lift. The primary lifts that I’d be doing would be dls, squats, pressing, pulling.
Another way of asking this might be, "Assuming I will prolly never put more than 600-700lbs on the bar, is there an advantage in having a 1500lb capacity bar over a 1000lb capacity bar, assuming same basic make and brand.[/quote]
[quote]rores28 wrote:
When I say bend, I’m referring to a difference you could note in the bar with the naked eye standing about 10ft away.
I’m looking at bars and package deals online, and I’m up in the air between the 1000lb 30mm and the 1500lb 32mm bar. So I unfortunately can’t just stack weight on and test. I’ll prolly never load more than 600 possibly 700 lbs on the bar. What I want to know is if I’m going to start having to be “afraid” as other posters have said about putting 315lb etc… on the bar. The question prolly would have been better phrased "If I have a 1000lb capacity bar, at what weight should I start getting worried about the weight that’s on it / will it significantly affect the mechanics of the lift. The primary lifts that I’d be doing would be dls, squats, pressing, pulling.
Another way of asking this might be, "Assuming I will prolly never put more than 600-700lbs on the bar, is there an advantage in having a 1500lb capacity bar over a 1000lb capacity bar, assuming same basic make and brand.[/quote]
If you are not doing Oly lifts, I would suggest a Texas Power bar or the less expensive Jessup Power bar. They are rated to 1,500 lbs.
[/quote]
Plus the TPB has great knurling. I <3 TPB.[/quote]
it isn’t about it bending (unless you want to be a dumb fuck and load up your deadlifts with lots of small bumpers so you can eek the plates off the floor 2 at a time)
it is about it failing to straighten when the load is removed
