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Martin 8020 3 1/8 coupling hub half for #80 roller chain couplings, 20 teeth, 1" pitch, 3-1/8" finished bore, 6.590" outside diameter. Steel sprocket-style hub half mates with a corresponding half to form a complete chain coupling. For use with #80 chain.
MODEL 8020 3 1/8
Contact supplier for technical support on: 323-728-8117
$211.97 Each
Prices are subject to change
FREE SHIPPING ON ORDERS OVER $100
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Typically Ships in: 1 day
Returnable: See conditions
Material
Steel
Number Of Teeth
20
Outside Dia
6.590"
Pitch
1.000 in.
| Material | Steel | Bore Type | Bored To Size |
|---|---|---|---|
| Coupling Size | 80 | Finished Bore Size | 3.125 in. |
| Chain Pitch | 1.000 in. | Key Way Size | 3/4 X 3/8 in. |
| Number of Teeth | 20 | Set Screw Size | 5/8-11X5/8 in. |
| Outside Diameter | 6.590 in. | Set Screw Location | 1 Over Keyway |
| Hub Outside Diameter | 5.375 in. | Number of Set Screws | 1 |
| Length Thru Bore | 2.625 in. | Min Bore Size | 3.125 in. |
| Hardened Teeth | Yes | Max Bore Size | 3.563 in. |
| Storage Dimension Length | 6.590 in. | Weight | 11.98 lbs. |
| Storage Dimension Width | 6.590 in. | Individually Packaged | No |
| Storage Dimension Height | 2.625 in. |
SKU: 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 moreSKU: 263484
Solid product at a great price
Solid product, fair and super fast shipping! MROSUPPLY delivers it all!
Read moreSKU: 251157
21 tooth 12 dp spur gear
The 21 tooth 12 DP gear I bought arrived very quickly. It was exactly what I needed to fix my RV slide out. I had to machine it to fit, but I knew that when I ordered it. VERY SATISFIED!!!
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SKU: 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 moreSKU: 263484
Solid product at a great price
Solid product, fair and super fast shipping! MROSUPPLY delivers it all!
Read moreSKU: 251157
21 tooth 12 dp spur gear
The 21 tooth 12 DP gear I bought arrived very quickly. It was exactly what I needed to fix my RV slide out. I had to machine it to fit, but I knew that when I ordered it. VERY SATISFIED!!!
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/