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Product Specifications:
| Item | Roller Chain Sprocket |
| Bore Type | Bushed |
| Bushing Part Number | 2012 |
| Chain Number | 50 |
| Chain Pitch | 5/8" |
| Construction | Welded |
| Construction Type | Welded |
| For Chain Number | 50 |
| Hardened Teeth | 1 |
| Hub Configuration | B |
| Hub Outside Dia. | 3 9/16" |
| Individually Packaged | No |
| Length Through Bore | 1 1/4" |
| Length Thru Bore | 1 1/4" |
| Material | Steel |
| Max. Bore Size | 2 3/16" |
| No. Of Teeth | 30 |
| Number Of Chain Rows | 1 |
| Number Of Teeth | 30 |
| Outside Dia. | 6.321" |
| Pitch | 5/8" |
| Pitch Dia. | 5.9792" |
| Pitch Diameter | 5.979" |
| Single Strand Tooth Thickness | 0.343" |
| Storage Dimension Height | 1 1/4" |
| Storage Dimension Length | 6.321" |
| Storage Dimension Width | 6.321" |
Shipping Info:
| Ship weight (kg) | 1.35 |
| Ship height (cm) | 3.18 |
| Ship length (cm) | 16.05 |
| Ship width (cm) | 16.05 |
| Country of Origin | US |
Product Variants
| Model | Number Of Teeth | Pitch Dia. | Outside Dia. | Length Through Bore | Bushing Type | For Chain Number | For Chain Pitch | Bore Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| 50BTB12H | 12 | 2.4148" | 2.708" | 7/8" | 1008 Taper Lock | 50 | 5/8" | Bushed | €83.04 | |
| 50BTB13H | 13 | 2.6116" | 2.911" | 7/8" | 1008 Taper Lock | 50 | 5/8" | Bushed | €84.23 | |
| 50BTB14H | 14 | 2.8087" | 3.113" | 7/8" | 1008 Taper Lock | 50 | 5/8" | Bushed | €88.14 | |
| 50BTB15H | 15 | 3.0061" | 3.315" | 1" | 1210 Taper Lock | 50 | - | Bushed | €90.83 | |
| 50BTB16H | 16 | 3.2036" | 3.517" | 1" | 1610 Taper Lock | 50 | 5/8" | Bushed | €91.01 | |
| 50BTB17H | 17 | 3.4014" | 3.718" | 1" | 1610 Taper Lock | 50 | 5/8" | Bushed | €97.54 | |
| 50BTB18H | 18 | 3.5992" | 3 23/25" | 1 3/4" | 1610 Taper Lock | 50 | 5/8" | Bushed | €99.00 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
MARTIN SPROCKET 50BTB30H Sprocket, Taper, 50 Chain, 30 Teeth, 5.979 Inch Pitch Dia., 6.321 Inch O.D., Steel
€137.98 /unit

