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40BS20 1 1/8

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Martin 40BS20 1 1/8 Type B finished bore roller chain sprocket for #40 chain with 1/2" pitch, 20 teeth, and 1-1/8" bore with keyway and two setscrews. Steel construction with 3.457" outside diameter. Single-strand design with hub on one side for reliable power transmission in industrial drive applications.

MODEL 40BS20 1 1/8

BRAND

Martin Sprocket

SKU

261423

WEIGHT

1.210 lb

UOM

each

Contact supplier for technical support on: 323-728-8117

$43.48 Each

Prices are subject to change

FREE SHIPPING ON ORDERS OVER $100

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Typically Ships in: 1 day

Returnable: See conditions

Bore

1-1/8"

Material

Steel

Number Of Teeth

20

Outside Dia

3.457"

Pitch

0.500 in.

Teeth

20

Material	Steel	Hub Outside Diameter	2.625 in.
Chain Number	40	Length thru Bore	1.000 in.
Chain Pitch	0.500 in.	Hub Recessed For Chain	No
Number of Chain Rows	1	Construction Detail	Solid
Number of Teeth	20	Bore Type	Bored To Size
Outside Diameter	3.457 in.	Finished Bore Size	1.125 in.
Pitch Diameter	3.196 in.	Key Way Size	1/4 X 1/8 in.
Single Strand Tooth Thickness	0.284 in.	Set Screw Size	5/16-18X5/16 in.
Hardened Teeth	No	Set Screw Location	(2) Set Screws (1) Over Kw And (1) At 90
Hub Configuration	B
Storage Dimension Width	3.625 in.	Individually Packaged	Yes
Storage Dimension Height	1.060 in.

SKU: 250148

Martin flex sleeve

Great inventory easy to use website,had exactly what I needed,up and running,would use them again without a doubt, thank you!

SKU: 251697

Good stock

I was pleased with the help of customer service to answer my questions concerning inventory and how quickly I received my product. Thank you.

SKU: 262509

Service manager

on time.. great company thanks john gorth

SKU: 262256

Works great

Works perfect and made my gokart way faster

When will I be charged for my order? Do you provide credit terms? Can I get a discounted price? I am a reseller / government entity. What is the return/warranty policy? Can it be shipped today? Does “Usually ships in 24 hours” mean it’s in stock? Read full FAQ

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40BS20 1 1/8

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Martin 40BS20 1 1/8 Type B finished bore roller chain sprocket for #40 chain with 1/2" pitch, 20 teeth, and 1-1/8" bore with keyway and two setscrews. Steel construction with 3.457" outside diameter. Single-strand design with hub on one side for reliable power transmission in industrial drive applications.

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Reviews

SKU: 250148

Martin flex sleeve

Great inventory easy to use website,had exactly what I needed,up and running,would use them again without a doubt, thank you!

SKU: 251697

Good stock

I was pleased with the help of customer service to answer my questions concerning inventory and how quickly I received my product. Thank you.

SKU: 262509

Service manager

on time.. great company thanks john gorth

SKU: 262256

Works great

Works perfect and made my gokart way faster