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- 12B-1 Chain Number
- 1 Strand
- 34 Teeth
- Without Hardened Teeth
- A Sprocket Style
description
- Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at an angle to keyseat.
features
- Bores are concentric to pitch line, minimizing run out
- Precise machining and processes ensure consistent finish and high quality
- Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
- Manufactured of high carbon steel
| Material Internal Use | Carbon Steel |
| Family Name | No. 12 - 19.050 mm Pitch - Single - A |
| Caliper Diameter | 194.4 mm |
| O.D. | 8.591 in |
| Pitch Dia. | 8.129 in |
| Hub Projection | N/A |
| Pitch Diameter | 206.5 mm |
| Root Diameter | 194.4 mm |
| Length Through Bore | 0.411 in |
| Construction Internal | Solid |
| Stock Bore Size | 19 mm |
| Hub Dia. | N/A |
| Material External Use | Steel |
| Series | A |
| Hub Length Thru | N/A |
| No. of Strands Across | 1 |
| Width Across Teeth | 11.1 mm |
| Outside Dia. [Min] | 218.21 mm |
| Single Strand Tooth Thickness | 0.437 in |
| No. of Teeth Rows Strands | 1 |
| Chain Sprocket Number | 12B |
| Inch/Metric | Metric |
| Pin Diameter | 12.065 mm |
| Bore Style | Minimum Bore |
| Bushing Bore Size [Min] | 0.748 in |
| No. of Teeth | 34 |
| Bore Range [Max] | 188.05 mm |
| Chain Sprocket Pitch | 0.75 in |
| Outside Dia. | 218.21 mm |
| Pitch Diameter [Min] | 206.5 mm |
| Chain Pitch | 19.05 mm |
| Pitch Root Diameter | 194.4 mm |
| Bore Type | Finished Bore |
| Chain No. | 12B, 12B-1 |
| Width Across Teeth Rows | 0.411 in |
| Hardened Teeth | Without Hardened Teeth |
| Material | Steel |
| Bore Range [Min] | 19.02 mm |
| Bore Size [Min] | 0.748 in |
| Sprocket Style | A |
| Bushing Bore [Min] | 0.748 in |
| Martin No. | 12A34 |
| Weight | 7.56 LB |
| EAN or UPC | 697950400761 |
