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Martin Sprocket S421 steel spur gear, 4 diametral pitch, 21 teeth, 14.5-degree pressure angle, 5.750" outside diameter. 14-1/2 degree pressure angle spur gear for power transmission applications. Compatible with other 14.5-degree PA gears.
MODEL S421
Contact supplier for technical support on: 323-728-8117
$360.22 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable: See conditions
Material
Steel
Number Of Teeth
21
Outside Dia
5.750"
| Material | Steel | Bore Type | Reborable |
|---|---|---|---|
| Diametral Pitch | 4 | Min Bore Size | 1.125 in. |
| Pressure Angle | 14.500 deg. | Max Bore Size | 2.625 in. |
| Number of Teeth | 21 | Hub Outside Diameter | 4.500 in. |
| Pitch Diameter | 5.250 in. | Hub Projection | 0.875 in. |
| Outside Diameter | 5.750 in. | Length thru Bore | 2.875 in. |
| Face Width | 2.000 in. |
| Storage Dimension Width | 5.750 in. | Individually Packaged | No |
|---|---|---|---|
| Storage Dimension Height | 2.880 in. |
SKU: 250207
Perfect
Perfect replacement part, Good purchase experience. I would use MRO again.
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 more
SKU: 250207
Perfect
Perfect replacement part, Good purchase experience. I would use MRO again.
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/