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- 40 Chain Number
- 1 Strand
- 25 Teeth
- 4.258 in Outside Diameter
- 1 in Finished Bore
features
- Conforms to ANSI B29.1-1975 standards
| Hardened Teeth | Without Hardened Teeth |
| Chain No. | 40 |
| Length Through Bore | 1 in |
| Martin No. | 40BS25 |
| Hub Length Thru | 0.716 in |
| Pitch Diameter [Min] | 3.989 in |
| Material | Steel |
| Finished Bore Size | 1 in |
| Hub O.D. | 3.25 in |
| Outside Dia. | 4.2580 in |
| Keyway | w/Keyway & Set Screw |
| Width Across Teeth | 0.284 in |
| Hub Projection | 0.72 in |
| No. of Screws | 2 |
| Set Screw Location | (1) Over Keyway and (1) At 90° |
| No. of Teeth Rows Strands | 1 |
| O.D. | 4.258 in |
| Sprocket Style | B |
| Caliper Diameter | 3.6695 in |
| Set Screw Size | 5/16-18 UNC |
| Chain Sprocket Number | 40 |
| Material External Use | Steel |
| Chain Pitch | 0.500 in |
| Key Way Size | 1/4 X 1/8 in |
| Pitch Diameter | 3.989 in |
| Finished Bore | 1.000 in - 1 in |
| Construction Internal | Solid |
| Pitch Dia. | 3.989 in |
| Outside Dia. [Min] | 4.2580 in |
| Single Strand Tooth Thickness | 0.284 in |
| No. of Teeth | 25 |
| Keyway Size | 1/4 x 1/8 in |
| No. of Strands Across | 1 |
| Bore Type | Finished Bore |
| Inch/Metric | Inch |
| Chain Sprocket Pitch | 0.5 in |
| Hub Dia. | 3 1/4 in |
| Material Internal Use | Atomized Metals |
| Weight | 2.4 LB |
| EAN or UPC | 697950005768 |
