$546.39 Each Prices subject to change
We never sell your data to third parties
Martin 78A21 Type A plain bore roller chain sprocket for #78 chain with 2.609-inch pitch, 21 teeth, and 18.310-inch outside diameter. Steel construction with flat plate design and no hub, suitable for light-duty applications where a plain bore is required.
MODEL 78A21
Contact supplier for technical support on: 323-728-8117
$546.39 Each
Prices are subject to change
FREE SHIPPING ON ORDERS OVER $100
Select Quantity
Typically Ships in: 1 day
Returnable: See conditions
Material
Steel
Number Of Teeth
21
Outside Dia
18.310"
Pitch
2.609 in.
| Material | Steel | Hub Configuration | A |
|---|---|---|---|
| Chain Number | 78 | Bore Type | Stock Bore |
| Chain Pitch | 2.609 in. | Min Bore Size | 1.500 in. |
| Number of Teeth | 21 | Length thru Bore | 0.875 in. |
| Pitch Diameter | 17.506 in. |
| Storage Dimension Length | 18.313 in. | Storage Dimension Height | 0.875 in. |
|---|---|---|---|
| Storage Dimension Width | 18.313 in. | Weight | 60.00 lbs. |
SKU: 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 moreSKU: 251099
Spur gear
Our Yellow Karcher "Duckee" steers once more. The spur gear works as advertised!!!
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 moreBrand
Balax
Model
30026-000
Brand
Bando
Model
C108
Brand
Martin Sprocket
Model
1240A24
Brand
Thomson Linear
Model
KGF-N-4010-RH-EE
Brand
Timken Belts
Model
4836V655
Brand
Hammond Power Solutions
Model
SG3A0015PB
Brand
Dodge
Model
119434
Brand
Phase-A-Matic
Model
VSH-20
SKU: 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 moreSKU: 251099
Spur gear
Our Yellow Karcher "Duckee" steers once more. The spur gear works as advertised!!!
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/