The difference between ANSI #50H roller chain and 50 or 530 chain

[mfenmor]

So I see a lot of people looking for ANSI 530 chain or even #50. 530 has the O-rings and 50 is standard. they are the same pitch. If you look at ANSI 50-H chain (the H stands for heavy) it should be a no brainer.
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The 50-H is on the bottom and standard 50 on the top.
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50-H on bottom, standard 50 on top.
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heavy.
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standard.
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standard has a split bushing for the pin.

[mfenmor]

Heavy has a solid bushing.
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The load rating on the cheapest 50-H is 50% more than the best standard 50 or 530.
Always remember, you get what you pay for.
A stretched chain will wear out sprockets faster.
I don't like adjusting chains and I really don't like changing chains.

[ARGOJIM]

what is the load rating on the 50H you found?

[mfenmor]

Max load = 1620 Lbs.
Average ultimate strength = 8150 Lbs.

[jerseybigfoot]

I used the 50H and 530 O-ring and had longer life with the O-ring chain. Don't confuse stretch with wear. With stretch you will have pin bending and side plate binding. Wear is when the chain length increases and gets very sloppy.

[mfenmor]

You are correct. I use wear and stretch as the same. My bad.
HKK is prestretched and I have not observed any stretch. After 7 years I have not wore out the 50-H.
Be careful. There are some bad clones of 50-H out there. I bought some connector links on eBay. They were advertised as 50-H but definitely not. I sent em back.