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- 20B-1 Chain Number
- 1 Strand
- 18 Teeth
- Without Hardened Teeth
- B 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
- Precise machining and processes ensure consistent finish and high quality
- Bores are concentric to pitch line, minimizing run out
- Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
- Manufactured of high carbon steel
| Sprocket Style | B |
| Pitch Root Diameter | 163.8 mm |
| Bushing Bore Size [Min] | 1.26 in |
| Martin No. | 20B18 |
| Chain Pitch | 31.75 mm |
| Bore Type | Finished Bore |
| Chain Sprocket Pitch | 1.25 in |
| Outside Dia. | 203.48 mm |
| O.D. | 8.011 in |
| Hardened Teeth | Without Hardened Teeth |
| Bore Style | Minimum Bore |
| No. of Teeth | 18 |
| Construction Internal | Welded |
| Root Diameter | 163.8 mm |
| Material External Use | Steel |
| Outside Dia. [Min] | 203.48 mm |
| Chain No. | 20B, 20B-1 |
| Width Across Teeth Rows | 0.656 in |
| Material Internal Use | Carbon Steel |
| No. of Teeth Rows Strands | 1 |
| Inch/Metric | Metric |
| Bore Range [Max] | 80 mm |
| Stock Bore Size | 32 mm |
| Pitch Dia. | 7.199 in |
| Chain Sprocket Number | 20B |
| Hub Dia. | 114.3 mm |
| Family Name | No. 20 - 31.750 mm Pitch - Single - Type B & C |
| Single Strand Tooth Thickness | 0.732 in |
| Material | Steel |
| Hub Length Thru | 25.41 mm |
| No. of Strands Across | 1 |
| Bushing Bore Size [Max] | 3.15 in |
| Bore Range [Min] | 32.02 mm |
| Hub O.D. | 4.5 in |
| Pitch Diameter [Min] | 182.8 mm |
| Bore Size [Max] | 3.15 in |
| Width Across Teeth | 18.59 mm |
| Bushing Bore [Min] | 1.26 in |
| Pitch Diameter | 182.8 mm |
| Length Through Bore | 1.732 in |
| Pin Diameter | 19.05 mm |
| Bore Size [Min] | 1.26 in |
| Series | B |
| Caliper Diameter | 163.79 mm |
| Weight | 15.0 LB |
| EAN or UPC | 697950403847 |
