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Koch 7425100 Roller Chain, #25, 10 Feet

4.4 out of 5 stars 42 customer reviews
| 4 answered questions
Price: $21.45 Free Shipping for Prime Members | Fast, FREE Shipping with Amazon Prime
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  • Standard roller chain meets ASME/ANSI B29.1 standards
  • This long life chain will work with standard sprockets on agricultural and industrial equipment
  • Chain has no roller, dimension shown as roller diameter is bushing diameter
  • Pitch: 1/4 inch
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$21.45 Free Shipping for Prime Members | Fast, FREE Shipping with Amazon Prime In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Koch 7425100 Roller Chain, #25, 10 Feet
  • +
  • Koch 7525040 Roller Chain Connector Link, 4-Pack, #25
  • +
  • Koch 7725010 Roller Chain Breaker, #25 to #60
Total price: $41.09
Buy the selected items together

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This item Koch 7425100 Roller Chain, #25, 10 Feet
Customer Rating 4 out of 5 stars (42) 5 out of 5 stars (12) 4 out of 5 stars (11) 5 out of 5 stars (5)
Price $21.45 $9.18 $17.80 $49.99
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Jeremywell International, Inc. Jeremywell International, Inc. Jeremywell International, Inc.
Material Type — Carbon Steel Carbon Steel carbon_steel
Add to Cart Add to Cart Add to Cart Add to Cart

Product Description

Product Description

Koch Industries standard roller chain is a long life chain that will work with standard sprockets on agricultural and industrial equipment. Our standard roller chain meets ASME/ANSI B29.1 standards and is shot peened during production to increase metal fatigue resistance. All chain is pre-lubricated for wear resistance. Tensile strength: 1,030 lbs. Roller Diameter: 0.130, Roller Width: 0.122, Pin Diameter: 0.091, Link Plate Thickness: 0.030, Link Plate 'H': 0.232, Pin Length 'R': 0.307.Standard roller chain meets ASME/ANSI B29.1 standardsThis long life chain will work with standard sprockets on agricultural and industrial equipmentChain has no roller, dimension shown as roller diameter is bushing diameterPitch: 1/4 inch

From the Manufacturer

Koch Industries standard roller chain is a long life chain that will work with standard sprockets on agricultural and industrial equipment. Our standard roller chain meets ASME/ANSI B29.1 standards and is shot peened during production to increase metal fatigue resistance. All chain is pre-lubricated for wear resistance. Tensile strength: 1,030 lbs. Roller Diameter: 0.130, Roller Width: 0.122, Pin Diameter: 0.091, Link Plate Thickness: 0.030, Link Plate "H": 0.232, Pin Length "R": 0.307.

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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsStrong Chain
By DMBlueFox on October 7, 2011
Verified Purchase
I am quite pleased with this chain. Initially though, I found my normal bicycle chain breaker to be too thick to penetrate the chain. Three minutes with a Dremel fixed that problem! I put this gorgeous chain on my motorized bicycle, and let me tell you: it works like a dream! It came well oiled just like the other Koch chain that I bought, hasn't rusted, hasn't done anything weird. You can tell that Koch chains are quality construction. .. And ya gotta love that you'll have eight extra feet of this stuff when you finish using what you need! I have four spare chains now.
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5.0 out of 5 starsGreat Quality Roller Chain
By Dennimen on December 21, 2016
Verified Purchase
Great Quality Roller Chain. I purchased a sprocket (also #25), and the two meshed perfectly. The chains are high strength and very resistant to the hacksaw I tried to cut it with. It was no match against the spike and mallet, however.
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5.0 out of 5 stars#25 Roller Chain (Sort of hard to find!)
By glenn on March 5, 2013
Verified Purchase
This chain is too small for many applications (only 1/4 inch between links) but is perfect for many small mechanisms with the right sprockets and cranks or motors. Its very small chain but incredibly strong. Chain-drive applications solve many problems with no slipping like belts or close tolerances like with gears.
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5.0 out of 5 starsWorked great for electric trike.
By Jake on September 11, 2015
Verified Purchase
I was concerned that this smaller chain would not be strong enough for my Electric trike conversion. But I've taken the trike off road and through some pretty harsh environments, and the chain has held up great. My fat-tire trike weighs 120 lbs and I weigh 150. Hope this helps.....
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5.0 out of 5 starsThe product itself arrived quickly and in good condition, so I can't really fault them for ...
By Nate on March 9, 2016
Verified Purchase
Unfortunately, I didn't know the difference between a normal connecting link and a master link when I purchased the chain.
I bought it to disassemble so I could use the links for a project, then realized that the ends of the pins were slightly flattened to hold everything together. I could still use it for the project, but any assembling/disassembling would require grinding and re-bending the links, which is more tedium than I am prepared for.

The product itself arrived quickly and in good condition, so I can't really fault them for that.
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5.0 out of 5 starsBest place to buy cheap Koch
By Scott Parsons on April 5, 2013
Verified Purchase
I was looking for lengthy Koch, but it was far too expensive elsewhere. Amazon provided the best place to buy cheap Koch.
I also purchased the Koch breaker 7725010 and the Koch connector 7525040. Very easy to separate if you have the Koch breaker and the Koch connectors provide a very secure connection.
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3.0 out of 5 starsI bought this chain as a replacement for the #25 ...
By Amazon Customer on March 1, 2016
Verified Purchase
I bought this chain as a replacement for the #25 chain on my goped scooter. Strangely, the links on this chain are slightly shorter than on the original chain, i.e., over a span of about 100 links, the chain is about half a link shorter. The chain also fits more tightly on the sprokets (but it does fit). The chain is also lighter duty.
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5.0 out of 5 starsBest quality chain of this size I've used.
By Ace on March 11, 2016
Verified Purchase
Hard to find chain. Most of this stuff we get for pocket ATVs and pocket bikes. It's usually pretty cheap junky chain. This one was not. I was impressed with the quality for such a tiny chain. Will buy again.
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