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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Diameter | 1 1/4" |
| Bore Type | Finished Bore |
| Chain Number | 100 |
| Chain Pitch | 1 1/4" |
| Construction | Solid |
| Construction Type | Solid |
| Finished Bore Size | 1 1/4" |
| For Chain Number | 100 |
| For Chain Pitch | 1 1/4" |
| Hub Configuration | B |
| Hub Diameter | 4" |
| Hub Outside Dia. | 4" |
| Hub Recessed For Chain | 1 |
| Individually Packaged | No |
| Keyway Size | 1/4" x 1/8" |
| Length Through Bore | 1 7/8" |
| Length Thru Bore | 1 7/8" |
| Material | Steel |
| No. Of Teeth | 12 |
| Number Of Chain Rows | 1 |
| Number Of Teeth | 12 |
| Outside Dia. | 5.415" |
| Pitch | 1 1/4" |
| Pitch Dia. | 4.8296" |
| Product Datasheet | martin-sprocket-100a10.pdf |
| Set Screw Location | (1) Over Keyway And (1) At 90° |
| Set Screw Size | 5/16"-18 |
| Set Screw Thread Type | Coarse |
| Single Strand Tooth Thickness | 0.692" |
| Storage Dimension Height | 1 22/25" |
| Storage Dimension Length | 5.415" |
| Storage Dimension Width | 5.415" |
Shipping Info:
| Ship weight (kg) | 2.78 |
| Ship height (cm) | 4.78 |
| Ship length (cm) | 13.77 |
| Ship width (cm) | 13.77 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Number Of Teeth | Pitch Dia. | Outside Dia. | Length Through Bore | Set Screw Size | For Chain Number | For Chain Pitch | Bore Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
100BS9 1 7/16 | 9 | 3.6548" | 4.184" | 1 7/8" | 3/8"-16 | 100 | 1 1/4" | Finished Bore | €188.30 | |
![]() |
100BS20 2 3/16 | 20 | 7.9906" | 8.642" | 2" | 1/2"-13 | 100 | 1 1/4" | Finished Bore | €329.27 | |
![]() |
100BS11 2 | 11 | 4.4368" | 5.007" | 1 7/8" | 1/2"-13 | 100 | 1 1/4" | Finished Bore | €230.34 | |
![]() |
100BS19 2 | 19 | 7.5944" | 8.241" | 2" | 1/2"-13 | 100 | 1 1/4" | Finished Bore | €315.38 | |
![]() |
100BS19 2 15/16 | 19 | 7.5944" | 8.241" | 2" | 5/8"-11 | 100 | 1 1/4" | Finished Bore | €315.38 | |
![]() |
100BS15 2 | 15 | 6.0122" | 6.631" | 1 3/4" | 1/2"-13 | 100 | 1 1/4" | Finished Bore | €300.59 | |
![]() |
100BS25 2 7/16 | 25 | 9.9734" | 10.645" | 2" | 5/8"-11 | 100 | 1 1/4" | Finished Bore | €375.15 |
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MARTIN SPROCKET 100BS12 1 1/4 Roller Chain Sprocket, Bore To Size, 1.250 Inch Bore, 5.415 Inch Outside Dia. Steel
€247.30 /unit



