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by Martin

Martin Roller Chain Sprocket, Bored-to-Size, Type B Hub, Single Strand, 40 Chain Size, 0.5" Pitch, 10 Teeth, 0.625" Bore Dia., 1.839" OD, 1.25" Hub Dia., 0.284" Width

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4.6 out of 5 stars 19 customer reviews
| 4 answered questions
Price: $13.31 & FREE Shipping on orders over $49. Details
Only 3 left in stock (more on the way).
Want it tomorrow, April 26? Order within and choose One-Day Shipping at checkout. Details
Ships from and sold by Amazon.com. Gift-wrap available.
Product Specifications
UPC 697950003559
Material Type Carbon Steel
System of Measurement Inch
Bore Diameter 0.625  inches
Hub Diameter 1.25  inches
Outside Diameter 1.839  inches
Pitch 0.5  inches
Overall Width 0.284  inches
Number of Teeth 10
Bore Diameter Tolerance + .001 - .000  inches
EAN 0697950003559
Outside Diameter 1.839  inches
Outside Diameter Tolerance +/- .010  inches
Overall Length 0.875  inches
Specification for this product family (See all  products)
Brand Name Martin
Part Number MartinSprocketParent144
Hub Style Type B
Shaft Mounting N/A
Additional Features Single Strand
Number of Items 1
Size 40
Style Name Bored-to-Size
UNSPSC Code 31171901
A Full Selection of Power Transmission Supplies
Roller Bearings
Roller Bearings 		Lead Nuts
Lead Nuts 		Actuators
Actuators 		Miter Gears
Miter Gears

Product Features

  • For use with series 40 chain, 1/2" pitch for driver or driven sprocket needs
  • Type BS sprocket with two setscrews and a keyway offers a stable and secure attachment to the shaft
  • Shaft diameter size from 1/2" to 1-1/2" for a variety of applications
  • Varying numbers of teeth, hub sizes, and stock bore sizes offer application flexibility
  • High carbon steel for strength and durability

Product Details

  • Shipping Weight: 3.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B0045JJYTA
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (19 customer reviews)
  • Amazon Best Sellers Rank: #187,159 in Industrial & Scientific (See Top 100 in Industrial & Scientific)

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Customer Questions & Answers
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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsExactly as Described
By John Schafer on November 18, 2012
Bore Diameter: 1.25Bushing Type: N/APitch: 0.5Hub Diameter: 2.125Outside Diameter: 2.974Number of Teeth: 17 Verified Purchase
What did I like best about this sprocket? Ease of ordering and fast shipping. I haven't gotten enough use on the sprockets to determine wear quality but the build quality is just fine. I have actually purchased two different sprockets from this website. I have tried to buy sprockets for projects I'm working on for a few days and just happened on this site. Most have page after page of PDF catalogs that you have to sort through to find an item number and then call the company and then they ship the wrong item. Not my experience here. You pic the shaft size the # of teeth you want and push the buy button and its done. I found it very easy and the shipping was really quick too. I would highly recommend them.
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5.0 out of 5 starsWorks great with no signs of tooth wear yet
By Brad Bancroft on July 9, 2014
Bore Diameter: 0.625Bushing Type: N/APitch: 0.5Hub Diameter: 1.0625Outside Diameter: 1.674Number of Teeth: 9 Verified Purchase
Needed to customize for my zero turn mower, machined hole and welded on another sprocket on a jack-shaft for gear reduction. Works great with no signs of tooth wear yet.
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3.0 out of 5 stars8 tooth gear
By Evan on June 26, 2013
Bore Diameter: 0.75Bushing Type: N/APitch: 0.5Hub Diameter: 1.8125Outside Diameter: 2.652Number of Teeth: 15
The product came chipped in 2 places. Enough of a tooth is missing to make me worry that the gear will break while in service.
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5.0 out of 5 starsFast shipping
By J. Walker on October 9, 2013
Bore Diameter: 0.75Bushing Type: N/APitch: 0.5Hub Diameter: N/AOutside Diameter: 2.166Number of Teeth: 12 Verified Purchase
Quality Product. Using on a golf cart rebuild. I will edit the post when I see how it lasts, I expect no problem.
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5.0 out of 5 starsgood
By TheOnly on March 29, 2013
Bore Diameter: 0.875Bushing Type: N/APitch: 0.5Hub Diameter: 1.375Outside Diameter: 2.003Number of Teeth: 11 Verified Purchase
Good quality product it have been work good so far nothing bad to say at this time would buy more if I needed them.
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5.0 out of 5 starsgood quality. I need to look deeper to see ...
By Raymond Heffner on February 12, 2016
Bore Diameter: 0.875Bushing Type: N/APitch: 0.5Hub Diameter: 1.5625Outside Diameter: 2.166Number of Teeth: 12 Verified Purchase
good quality. I need to look deeper to see if this seller has other stuff I could use
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5.0 out of 5 starsFive Stars
By Amazon Customer on September 19, 2014
Bore Diameter: 0.625Bushing Type: N/APitch: 0.5Hub Diameter: 1.25Outside Diameter: 1.839Number of Teeth: 10 Verified Purchase
Great to find this part and at a great price. Shipped quickly at no cost.
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1.0 out of 5 starsOne Star
By George on March 27, 2016
Bore Diameter: 0.625Bushing Type: N/APitch: 0.5Hub Diameter: 1.8125Outside Diameter: 2.652Number of Teeth: 15 Verified Purchase
It is horrible don't but this did not work one tooth broke the first day
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