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Martin
50BTB21
Single Strand Sprocket; 50 Chain Size; 21 Teeth; Requires 1610 Taper Lock Bushing
Item #100804191
- Single Strand Sprocket
- 50 Chain Size
- 21 Teeth
- Requires Taper Lock 1610 Bushing
- Without Hardened Teeth
features
- Tolerances meet or exceed ANSI standards
- Manufactured of high carbon steel
- Precise machining and processes ensure consistent finish and high quality
- Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
- Bores are concentric to pitch line, minimizing run out
- Interchangeable with other manufacturers’ Taper bushings
| Bore Size [Min] | 0.5 in |
| Outside Dia. [Min] | 4.5220 in |
| Hardened Teeth | Without Hardened Teeth |
| Bushing Bore Size [Max] | 1.625 in |
| Construction Internal | Solid |
| Material Internal Use | Atomized Metals |
| Overall Length Less Threads | N/A |
| Bushing Type | Taper Lock |
| Hub Length | 0.66 in |
| No. of Teeth Rows Strands | 1 |
| Sprocket Style | B |
| Length Through Bore | 1 in |
| Bore Type | Bushed |
| Chain No. | 50 |
| Inch/Metric | Inch |
| Outside Dia. | 4.522 in |
| O.D. | 4.522 in |
| Single Strand Tooth Thickness | 0.343 in |
| Hub Dia. | 3.482 in |
| Material External Use | Steel |
| Pitch Diameter | 4.190 in |
| Type | B |
| Chain Pitch | 0.625 in |
| Caliper Diameter | 3.78 in |
| Pitch Dia. | 4.193 in |
| Bushing Bore Size [Min] | 0.5 in |
| Hub Projection | 0.66 in |
| No. of Teeth | 21 |
| Bushing Bore [Max] | 1 5/8 in |
| Chain Sprocket Number | 50 |
| Material | Steel |
| Bore Size [Max] | 1.625 in |
| Tooth Width | 0.343 in |
| No. of Strands Across | 1 |
| Chain Sprocket Pitch | 0.625 in |
| Martin No. | 50BTB21 |
| Width Across Teeth | 0.343 in |
| Hub O.D. | 3 in |
| Bushing Series | 1610 |
| Overall Length | 1 5/8 in |
| Bushing Bore [Min] | 0.5 in |
| Weight | 1.34 LB |
| EAN or UPC | 697950031187 |
