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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Dia. | 23/32" to 2 1/4" |
| Bore Type | Finished Bore |
| Chain Number | 2052 |
| Chain Pitch | 1 1/4" |
| Chain Size | #2052 |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 0.7188" |
| For Chain Number | 2052 |
| For Chain Pitch | 1 1/4" |
| Hub Configuration | A |
| Hub Dia. | 3 1/4" |
| Individually Packaged | No |
| Length Through Bore | 0.343" |
| Length Thru Bore | 0.315" |
| Material | Steel |
| Min. Bore Size | 0.7188" |
| No. Of Chain Rows | 1 |
| No. Of Teeth | 21 |
| Pitch | 1 1/4" |
| Pitch Dia. | 8.3869" , 8.387" |
| Single Strand Tooth Thickness | 0.343" |
| Storage Dimension Height | 0.343" |
| Storage Dimension Length | 9 1/25" |
| Storage Dimension Width | 9 1/25" |
| Type | Type A Single Strand Double Pitch Reboreable |
Shipping Info:
| Ship weight (kg) | 2.29 |
| Ship height (cm) | 0.87 |
| Ship length (cm) | 22.96 |
| Ship width (cm) | 22.96 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | No. Of Teeth | Hub Dia. | Bore Dia. | Storage Dimension Length | Storage Dimension Width | Finished Bore Size | Min. Bore Size | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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2052A14 | 5.617" | 14 | 3" | 23/32" to 2" | 6.23" | 6.23" | 0.7188" | 0.7188" | €99.57 | |
![]() |
2052A15 | 6.012" | 15 | 3 1/4" | 23/32" to 2 1/4" | 6.63" | 6.63" | 0.7188" | 0.7188" | €103.98 | |
![]() |
2052A16 | 6.407" | 16 | 3 1/4" | 23/32" to 2 1/4" | 7.03" | 7.03" | 0.7188" | 0.7188" | €112.15 | |
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2052A20 | 7.991" | 20 | 3 1/4" | 23/32" to 2 1/4" | 8 16/25" | 8 16/25" | 0.7188" | 0.7188" | €124.71 | |
![]() |
2052A24 | 9.577" | 24 | 3 3/4" | 15/16" to 2 3/4" | 10 6/25" | 10 6/25" | 15/16" | 15/16" | €139.84 | |
![]() |
2052A19 | 7.594" | 19 | 3 1/4" | 23/32" to 2 1/4" | 8 6/25" | 8 6/25" | 0.7188" | 0.7188" | €120.73 | |
![]() |
2052A18 | 7.198" | 18 | 3 1/4" | 23/32" to 2 1/4" | 7 21/25" | 7 21/25" | 0.7188" | 0.7188" | €115.22 |
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MARTIN SPROCKET 2052A21 Sprocket, 2052 Chain, 21 Teeth, 8.387 Inch Pitch Dia., 9.040 Inch O.D., Steel
€121.42 /unit







