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- 25 Chain Number
- 1 Strand
- 21 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
- Tolerances meet or exceed ANSI standards
- Manufactured of high carbon steel
- Precise machining and processes ensure consistent finish and high quality
| No. of Teeth | 21 |
| Inch/Metric | Inch |
| Hardened Teeth | Without Hardened Teeth |
| Bore Range [Min] | 0.38 in |
| Family Name | No. 25 - 1/4 in Pitch - Single - A |
| Width Across Teeth | 0.11 in |
| Pitch Diameter [Min] | 1.68 in |
| Material | Steel |
| Outside Dia. | 1.81 in |
| Outside Dia. [Min] | 1.81 in |
| Caliper Diameter | 1.54 in |
| Length Through Bore | 0.11 in |
| Hub Dia. | N/A |
| Hub Projection | N/A |
| No. of Strands Across | 1 |
| Bore Style | Minimum Bore |
| Pitch Diameter | 1.68 in |
| Chain No. | 25 |
| Sprocket Style | A |
| Bore Range [Max] | 1.38 in |
| Series | A |
| Martin No. | 25A21 |
| Bore Type | Reborable |
| Hub Length Thru | N/A |
| Chain Pitch | 0.25 in |
| Weight | 0.04 LB |
| EAN or UPC | 697950000046 |
