FREE delivery on orders over €150
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 | 40-2 |
| Construction | Solid |
| Construction Type | Solid |
| For Chain Number | 40 |
| For Chain Pitch | 1/2" |
| Hardened Teeth | 1 |
| Hub Configuration | B |
| Hub Dia. | 2 5/8" |
| Hub Outside Dia. | 2 5/8" |
| Individually Packaged | No |
| 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 | 2 |
| No. Of Teeth | 20 |
| Outside Dia. | 3.457" |
| Pitch | 1/2" |
| Pitch Dia. | 3.196" , 3.1962" |
| Single Strand Tooth Thickness | 0.275" |
| Storage Dimension Height | 1" |
| Storage Dimension Length | 3.457" |
| Storage Dimension Width | 3.457" |
| Type | Double Strand TB Bushed Solid Type B |
Shipping Info:
| Ship weight (kg) | 0.35 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 8.79 |
| Ship width (cm) | 8.79 |
| 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 Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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D40BTB18H | 2.879" | 3.136" | 2.313" | 1" | 1210 Taper Lock | 40 | 1/2" | - | €129.69 | |
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D40BTB19H | 3.038" | 3.296" | 2 1/2" | 1" | 1210 Taper Lock | 40 | 1/2" | - | €133.82 | |
![]() |
D40BTB21H | 3.355" | 3.617" | 2 3/4" | 1" | 1610 Taper Lock | 40 | 1/2" | - | €143.07 | |
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D40BTB23H | 3.672" | 3.938" | 3" | 1" | 1610 Taper Lock | 40 | 1/2" | - | €169.11 | |
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D40BTB25H | 3.989" | 4.258" | 3.406" | 1 1/4" | 2012 Taper Lock | 40 | 1/2" | - | €171.77 | |
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D40BTB30 | 4.783" | 5.057" | 4.234" | 1 1/4" | 2012 Taper Lock | 40 | 1/2" | - | €179.56 | |
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D40BTB36 | 5.737" | 6.015" | 5.156" | 1 1/4" | 2012 Taper Lock | 40 | 1/2" | - | €225.29 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
MARTIN SPROCKET D40BTB20H Sprocket, Taper, 40 Chain, 20 Teeth, 3.196 Inch Pitch Dia., 3.457 Inch O.D., Steel
€139.42 /unit







