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Martin 40BS28 1 is a Bored-to-Size (Type B Finished Bore) roller chain sprocket for #40 chain (1/2" pitch). It features 28 teeth, a 1" finished bore with keyway and setscrews, and a 4.738" outside diameter. Constructed from steel, this sprocket is suitable for power transmission applications requiring a single-strand ANSI #40 chain drive.
MODEL 40BS28 1
Contact supplier for technical support on: 323-728-8117
$81.41 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable: See conditions
Bore
1"
Material
Steel
Number Of Teeth
28
Outside Dia
4.738"
Pitch
0.500 in.
Teeth
28
| Material | Steel | Hub Outside Diameter | 3.250 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 | 28 | Bore Type | Bored To Size |
| Outside Diameter | 4.738 in. | Finished Bore Size | 1.000 in. |
| Pitch Diameter | 4.466 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 Length | 4.813 in. | Weight | 2.35 lbs. |
| Storage Dimension Width | 4.813 in. | Individually Packaged | Yes |
| Storage Dimension Height | 1.060 in. |
SKU: 250096
Durable and high quality
I bought a second one to keep as a spare, but the first one still hasn’t shown any signs of wear. Seems like a quality part.
Read moreSKU: 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!
Read moreSKU: 265185
Great prices and quality products
Your products are not only affordable, but they are also priced very fairly and competitively & always ship out pretty quickly. You have gained a new regular customer and stolen us from one of our regular distributors without even trying. Thank you for being awesome! Not to mention the free shipping over $100 perk is super appreciated as we not only are saving money per item, but we are also able to buy in bulk without the additional burden of freight/shipping costs. THANK YOU!! :)
Read more
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| Brand | NK North America Inc. |
| Model | K0247.3A4X40 |
SKU: 250096
Durable and high quality
I bought a second one to keep as a spare, but the first one still hasn’t shown any signs of wear. Seems like a quality part.
Read moreSKU: 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!
Read moreSKU: 265185
Great prices and quality products
Your products are not only affordable, but they are also priced very fairly and competitively & always ship out pretty quickly. You have gained a new regular customer and stolen us from one of our regular distributors without even trying. Thank you for being awesome! Not to mention the free shipping over $100 perk is super appreciated as we not only are saving money per item, but we are also able to buy in bulk without the additional burden of freight/shipping costs. THANK YOU!! :)
Read moreItem must be unused.
Item must be in it's original package.
Restocking, shipping and handling fees may apply to any return with this manufacturer.
For more information please consult https://www.mrosupply.com/page/returnwarranty-policy/