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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Type | Bushed |
| Bushing Part Number | JA |
| Bushing Size | JA |
| Chain Pitch | 1/2" |
| Construction | Solid |
| Construction Type | Solid |
| For Chain Number | 41 |
| For Chain Pitch | 1/2" |
| Hub Configuration | B |
| Hub Diameter | 2 3/8" |
| Hub Outside Dia. | 2 1/8" |
| Individually Packaged | Yes |
| Length Through Bore | 5/8" |
| Length Thru Bore | 14/25" |
| Material | Steel |
| Max. Bore Size | 1 1/4" |
| Min. Bore Size | 3/8" |
| No. Of Teeth | 18 |
| Number Of Chain Rows | 1 |
| Number Of Teeth | 18 |
| Outside Dia. | 3.136" |
| Pitch | 1/2" |
| Pitch Dia. | 2.8794" |
| Single Strand Tooth Thickness | 0.227" |
| Storage Dimension Height | 3/4" |
| Storage Dimension Length | 3 3/16" |
| Storage Dimension Width | 3 3/16" |
Shipping Info:
| Ship weight (kg) | 0.27 |
| Ship height (cm) | 1.91 |
| Ship length (cm) | 7.98 |
| Ship width (cm) | 7.98 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | Outside Dia. | Number Of Teeth | Length Through Bore | Bushing Type | For Chain Number | For Chain Pitch | Bore Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
41JA15 | 2.4049" | 2.652" | 15 | 5/8" | QD JA | 41 | 1/2" | Bushed | €56.80 | |
![]() |
41JA16 | 2.5629" | 2.814" | 16 | 5/8" | QD JA | 41 | 1/2" | Bushed | €58.34 | |
![]() |
41JA17 | 2.7211" | 2.975" | 17 | 5/8" | QD JA | 41 | 1/2" | Bushed | €63.29 | |
![]() |
41JA19 | 3.0378" | 3.296" | 19 | 5/8" | QD JA | 41 | 1/2" | Bushed | €83.04 | |
![]() |
41SH20 | 3.1962" | 3.457" | 20 | 13/16" | QD SH | 41 | 1/2" | Bushed | €84.89 | |
![]() |
41SH21 | 3.3548" | 3.617" | 21 | 13/16" | QD SH | 41 | 1/2" | Bushed | €87.37 | |
![]() |
41SH22 | 3.5133" | 3.778" | 22 | 13/16" | QD SH | 41 | 1/2" | Bushed | €91.31 |
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MARTIN SPROCKET 41JA18 Sprocket, 41 Chain, 18 Teeth, 2.879 Inch Pitch Dia., 3.136 Inch O.D., Steel
€74.10 /unit




