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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Type | Bushed |
| Bushing Part Number | 1610 |
| Bushing Type | 1610 Taper Lock |
| Chain Number | 40 |
| Chain Pitch | 1/2" |
| Chain Size | #40 |
| Construction | Solid |
| Construction Type | Solid |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hub Configuration | B |
| Hub Dia. | 3.418" |
| Hub Outside Dia. | 3 1/4" |
| Individually Packaged | Yes |
| Length Through Bore | 1" |
| Length Thru Bore | 1" |
| Material | Steel |
| Max. Bore Size | 1 5/8" |
| Min. Bore Size | 1/2" |
| No. Of Chain Rows | 1 |
| No. Of Teeth | 25 |
| Outside Dia. | 4.258" |
| Pitch | 1/2" |
| Pitch Dia. | 3.989" , 3.9894" |
| Single Strand Tooth Thickness | 0.284" |
| Storage Dimension Height | 1.06" |
| Storage Dimension Length | 4 5/16" |
| Storage Dimension Width | 4 5/16" |
| Type | Taper Bushed Type B |
Shipping Info:
| Ship weight (kg) | 0.6 |
| Ship height (cm) | 2.69 |
| Ship length (cm) | 10.82 |
| Ship width (cm) | 10.82 |
| Country of Origin | US |
Product Variants
| Product | Model | Pitch Dia. | Outside Dia. | Hub Dia. | Length Through Bore | Bushing Type | For Chain Number | For Chain Pitch | Bore Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
40BTB14 | 2.247" | 2.491" | 1.813" | 7/8" | 1008 Taper Lock | 40 | 1/2" | Bushed | €70.11 | |
![]() |
40BTB15 | 2.405" | 2.652" | 1.813" | 7/8" | 1008 Taper Lock | 40 | 1/2" | Bushed | €71.61 | |
![]() |
40BTB16 | 2.563" | 2.814" | 1.937" | 7/8" | 1008 Taper Lock | 40 | 1/2" | Bushed | €72.81 | |
![]() |
40BTB17 | 2.721" | 2.975" | 2 3/8" | 1" | 1210 Taper Lock | 40 | 1/2" | Bushed | €79.71 | |
![]() |
40BTB18 | 2.879" | 3.136" | 2.469" | 1" | 1210 Taper Lock | 40 | 1/2" | Bushed | €83.04 | |
![]() |
40BTB19 | 3.038" | 3.296" | 2.469" | 1" | 1210 Taper Lock | 40 | 1/2" | Bushed | €88.14 | |
![]() |
40BTB20 | 3.196" | 3.457" | 2.781" | 1" | 1610 Taper Lock | 40 | 1/2" | Bushed | €91.01 |
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MARTIN SPROCKET 40BTB25 Roller Chain Sprocket, 40 Chain, Bushed TB, 25 Teeth, 3.989 Inch Pitch Dia., Steel
€115.01 /unit







