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Martin 40BS21 1 Type B finished bore roller chain sprocket for #40 chain, 1/2" pitch, 21 teeth, 1" bore with keyway and setscrews. Steel construction, 3.617" outside diameter. Single-strand sprocket with hub on one side for re-boring or direct mounting.
MODEL 40BS21 1
Contact supplier for technical support on: 323-728-8117
$47.31 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
21
Outside Dia
3.617"
Pitch
0.500 in.
Teeth
21
| Material | Steel | Hub Outside Diameter | 2.750 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 | 21 | Bore Type | Bored To Size |
| Outside Diameter | 3.617 in. | Finished Bore Size | 1.000 in. |
| Pitch Diameter | 3.355 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 | 4.313 in. | Weight | 1.45 lbs. |
| Storage Dimension Width | 4.313 in. | Individually Packaged | Yes |
| Storage Dimension Height | 1.060 in. |
SKU: 251099
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Our Yellow Karcher "Duckee" steers once more. The spur gear works as advertised!!!
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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/