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Martin Roller Chain Sprocket, Reboreable, Type A Hub, Single Strand, 25 Chain Size

Available in multiple versions

4.5 out of 5 stars 3 customer reviews

Price: $4.87 - $20.97
Product Specifications
Brand Name Martin
Part Number MartinSprocketParent97
Hub Diameter [ N/A ]  inches
Hub Style Type A
Shaft Mounting N/A
Additional Features Single Strand
Number of Items 1
Size 25
Style Name Reboreable
UNSPSC Code 31171901

Currently showing 1-20 of 21 Next »
ASIN
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Pitch Number of Teeth Bushing Type Bore Diameter Outside Diameter Price Quantity
   
B00452TO9C 0.25 inches 18 N/A 0.25 inches 1.568 inches
$12.57
B00452TO9W 0.25 inches 19 N/A 0.25 inches 1.648 inches
$12.70
B00452TOAG 0.25 inches 20 N/A 0.25 inches 1.729 inches
$12.70
B00452TOBA 0.25 inches 21 N/A 0.375 inches 1.809 inches
$12.83
B00452TOBU 0.25 inches 22 N/A 0.375 inches 1.889 inches
$12.93
B00452TOCE 0.25 inches 23 N/A 0.375 inches 1.969 inches
$13.16
B00452TOCY 0.25 inches 24 N/A 0.375 inches 2.049 inches
$13.31
B00452TODI 0.25 inches 25 N/A 0.375 inches 2.129 inches
$13.54
B00452TOE2 0.25 inches 26 N/A 0.375 inches 2.209 inches
$13.91
B00452TOEM 0.25 inches 28 N/A 0.375 inches 2.369 inches
$14.25
B00452TOF6 0.25 inches 30 N/A 0.375 inches 2.529 inches
$14.25
B00452TOFQ 0.25 inches 32 N/A 0.375 inches 2.688 inches
$16.85
B00452TOGA 0.25 inches 35 N/A 0.375 inches 2.928 inches
$4.87
B00452TOGU 0.25 inches 36 N/A 0.375 inches 3.008 inches
$17.43
B00452TOHO 0.25 inches 40 N/A 0.5 inches 3.327 inches
$17.74
B00452TOI8 0.25 inches 42 N/A 0.5 inches 3.486 inches
$18.10
B00452TOIS 0.25 inches 45 N/A 0.5 inches 3.725 inches
$18.22
B00452TOJC 0.25 inches 48 N/A 0.5 inches 3.964 inches
$18.58
B00452TOJW 0.25 inches 54 N/A 0.5 inches 4.442 inches
$19.29
B00452TOKQ 0.25 inches 60 N/A 0.5 inches 4.92 inches
$19.70
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Product Features

  • For use with series 25 chain, 1/4" pitch for driver or driven sprocket applications
  • Type A sprocket offers flexibility in mounting arrangements
  • Shaft diameter size from 1/4" to 1/2" for a variety of applications
  • Can be used with large-diameter shafts, and drilled for mounting or welded directly to other apparatuses
  • High carbon steel for strength and durability

Product Description

The Martin type A sprocket is suitable for use with the series 25 chain with 1/4” pitch for driver or driven sprocket applications. This sprocket has a narrow profile and no hub extension, and is easily adaptable for bushings, bearings, and sleeves. Varying numbers of teeth, outside diameters and stock bore sizes offer application flexibility. Made from high carbon steel, it has high strength and durability.

The options for this class of sprocket are: number of teeth from 18 to 72; outside diameter from 1.568” to 5.876”; stock bore size from 1/4” to 1/2”; and approximate weight from 0.04 lbs. to 0.74 lbs. The tooth width is 0.110” nominal. The maximum bore size will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. All Martin sprockets meet or exceed ANSI standards.

A sprocket is a wheel with teeth around the perimeter that meshes with a chain, track, or other perforated or indented material. Unlike gears that mesh with another gear, sprockets mesh with a chain, which then interacts with another sprocket. Gears can be used to transmit power around a corner, based on how they fit together. Sprockets with chains only work in straight lines. Some common benefits of chain-drive systems include minimal slippage, a fixed ratio between rotating shafts, and versatility with many different chain attachments and sprocket material selections. An example of a power transmission system is a standard bicycle, which has a sprocket and a chain to deliver power from the rider’s legs to the wheels making the bike move.

Martin Sprocket & Gear manufactures power transmission and conveying products. The company was founded in 1951 and is headquartered in Arlington, TX. Martin provides tools that meet ANSI, NAS and DIN standards.


Product Details

  • Shipping Weight: 10.4 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B004JXWGSS
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (3 customer reviews)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Customer Questions & Answers

Customer Reviews

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Top Customer Reviews

Bore Diameter: 0.375Bushing Type: N/APitch: 0.25Hub Diameter: [ N/A ]Outside Diameter: 2.529Number of Teeth: 30 Verified Purchase
its a sprocket :) Just like the ones that you can buy at your local bearing supply store. Except cheaper
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Bore Diameter: 0.5Bushing Type: N/APitch: 0.25Hub Diameter: [ N/A ]Outside Diameter: 5.876Number of Teeth: 72 Verified Purchase
Received quickly as described.
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Bore Diameter: 0.375Bushing Type: N/APitch: 0.25Hub Diameter: [ N/A ]Outside Diameter: 2.928Number of Teeth: 35 Verified Purchase
100%
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