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  Our Catalog   Roller Chain Sprockets

Martin Roller Chain Sprocket, Bored-to-Size, Type B Hub, Single Strand, 40 Chain Size, 0.5" Pitch, 45 Teeth, 1.25" Bore Dia., 7.45" OD, 3.5" Hub Dia., 0.284" Width


Extreame Savings Item! Free Shipping Included! Save 47% on the Martin Roller Chain Sprocket, Bored-to-Size, Type B Hub, Single Strand, 40 Chain Size, 0.5'' Pitch, 45 Teeth, 1.25'' Bore Dia., 7.45'' OD, 3.5'' Hub Dia., 0.284'' Width by Martin at LCGUI. MPN: 40BS45 1 1/4. Hurry! Limited time offer. Offer valid only while supplies last. The Martin type BS sprocket, also known as a bored-to-size sprocket, includes two setscrews and a keyway, and is suitable for use with the series 40


Product Description

The Martin type BS sprocket, also known as a bored-to-size sprocket, includes two setscrews and a keyway, and is suitable for use with the series 40 chain with a 1/2” pitch. This sprocket has been adapted for installation on the shaft without additional components. Made from high carbon steel, it has high strength and durability.

This sprocket has a hub extension on one side to provide stability and allow for the use of a full-depth keyway and two standard setscrews to attach the sprocket onto a shaft.

The options for this class of sprocket are: number of teeth from 9 to 112; outside diameter from 1.670” to 18.120”; stock bore size from 1/2" to 1-1/2”; length through bore from 7/8” to 1-1/4”; and approximate weight from 0.16 lbs to 22.45 lbs. The chain row width is 0.284” nominal. The keyway is on the centerline of the tooth. The following exceptions are present: the 9- through 15-tooth options have no keyway and use two (2) 1/4” setscrews. With this series of sprockets, the hub diameters will vary to suit different bore sizes. 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 American National Standards Institute (ANSI), National Aerospace Standard (NAS), and Deutsches Institut für Normung (DIN) standards.

Features & Highlights

  • 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

Additional Information

Manufacturer:MARTIN
Brand:Martin
Part Number:40BS45 1 1/4
Publisher:MARTIN
Studio:MARTIN
MPN:40BS45 1 1/4
UPC:697950006604
EAN:0697950006604
Package Weight:4.7 pounds
Package Size:6.6 x 1 x 1 inches

Martin Roller Chain Sprocket, Bored-to-Size, Type B Hub, Single Strand, 40 Chain Size, 0.5'' Pitch, 45 Teeth, 1.25'' Bore Dia., 7.45'' OD, 3.5'' Hub Dia., 0.284'' Width by Martin

Buy Now:
Martin Roller Chain Sprocket, Bored-to-Size, Type B Hub, Single Strand, 40 Chain Size, 0.5" Pitch, 45 Teeth, 1.25" Bore Dia., 7.45" OD, 3.5" Hub Dia., 0.284" Width

Brand: Martin
4.9 out of 5 stars with 48 reviews
Condition: New
Lead Time: 1 - 2 Business Days
Availability: In Stock
$121.21
$64.72
You Save: 47%


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