Short Pitch Precision Roller Chain (A Series)
| BTX ISO/DIN Chain no. | ANSI Chain No. | Pitch | Roller Diameter | Width between inner plates | Pin diameter | Pin Length | Inner Plate depth | Plate Thickness | Ultimate tensile strength | Average tensile strength | Weight per meter |
| P | d1 max | d1 min | d2max | L max | h2 max | T max | Q min | Qo | q | ||
| mm | mm | mm | mm | mm | mm | mm | kN/LB | kN | kg/m | ||
| *03C | *15 | 4. 7625 | 2. 48 | 2. 38 | 1. 62 | 6. 10 | 4. 30 | 0. 60 | 1. 80/409 | 2. 0 | 0. 08 |
| *04C-1 | *25 | 6. 350 | 3. 30 | 3. 18 | 2. 31 | 7. 90 | 6. 00 | 0. 80 | 3. 50/795 | 4. 6 | 0. 15 |
| *06C-1 | *35 | 9. 525 | 5. 08 | 4. 77 | 3. 58 | 12. 40 | 9. 00 | 1. 30 | 7. 90/1795 | 10. 8 | 0. 33 |
| 085-1 | 41 | 12.700 | 7. 77 | 6. 25 | 3. 58 | 13. 75 | 9. 91 | 1. 30 | 6. 67/1516 | 12. 6 | 0. 41 |
| 08A-1 | 40 | 12. 700 | 7. 95 | 7. 85 | 3. 96 | 16. 60 | 12. 00 | 1. 50 | 14. 10/3205 | 17. 5 | 0. 62 |
| 10A-1 | 50 | 15. 875 | 10. 16 | 9. 40 | 5. 08 | 20. 70 | 15. 09 | 2. 03 | 22. 20/5045 | 29. 4 | 1. 02 |
| 12A-1 | 60 | 19. 050 | 11. 91 | 12. 57 | 5. 08 | 25. 90 | 18. 00 | 2. 42 | 31. 80/7227 | 41. 5 | 1. 50 |
| 16A-1 | 80 | 25. 400 | 15. 88 | 15. 75 | 7. 92 | 32. 70 | 24. 00 | 3. 25 | 56. 70/12886 | 69. 4 | 2. 60 |
| 20A-1 | 100 | 31. 750 | 19. 05 | 18. 90 | 9. 53 | 40. 40 | 30. 00 | 4. 00 | 88. 50/20114 | 109. 2 | 3. 91 |
| 24A-1 | 120 | 38. 100 | 22. 23 | 25. 22 | 11. 10 | 50. 30 | 35. 70 | 4. 80 | 127. 00/28864 | 156. 3 | 5. 62 |
| 28A-1 | 140 | 44. 450 | 25. 40 | 25. 22 | 12. 70 | 54. 40 | 41. 00 | 5. 60 | 172. 40/39182 | 212. 0 | 7. 50 |
| 32A-1 | 160 | 50. 800 | 28. 58 | 31. 55 | 14. 27 | 64. 80 | 47. 00 | 6. 40 | 226. 80/51545 | 278. 9 | 10. 10 |
| 36A-1 | 180 | 57. 150 | 35. 48 | 35. 48 | 17. 46 | 72. 80 | 53. 60 | 7. 20 | 280. 20/63682 | 341. 8 | 13. 45 |
| 40A-1 | 200 | 63. 500 | 39. 68 | 37. 85 | 19. 85 | 80. 30 | 60. 00 | 8. 00 | 353. 80/80409 | 431. 6 | 16. 15 |
| 48A-1 | 240 | 76. 200 | 47. 63 | 47. 35 | 23. 81 | 95. 50 | 72. 39 | 9. 50 | 510. 30/115977 | 622. 5 | 23. 20 |
| BTX ISO/DIN Chain no. | Chain Designation | Pitch | Roller Diameter | Width between inner plates | Pin diameter | Pin Length | Inner Plate depth | Plate Thickness | Transverse pitch | Ultimate tensile strength | Average tensile strength | Weight per meter |
| - | d1 max | d1 min | d2max | L max | h2 max | t/T max | Pt | Q min | Qo | q | ||
| - | mm | mm | mm | mm | mm | mm | mm | kN/LB | kN | kg/m | ||
| 05 B-3 | 8X3mm | 8. 000 | 5. 00 | 3. 00 | 2. 31 | 19. 5 | 7. 10 | 0. 80 | 5. 64 | 11. 1/2523 | 13. 8 | 0. 48 |
| *06 B-3 | 3/8ln. X 7/32ln. | 9. 525 | 6. 35 | 5. 72 | 3. 28 | 33. 5 | 8. 20 | 1. 30 | 10. 24 | 24. 9/5659 | 30. 1 | 1. 16 |
| 08 B-3 | 1/2ln. X 5/16ln. | 12.700 | 8. 51 | 7.75 | 4. 45 | 45. 1 | 11. 80 | 1. 60 | 13. 92 | 47. 5/10795 | 57. 8 | 2. 03 |
| 10 B-3 | 5/8ln. X 3/8ln. | 15. 875 | 10. 16 | 9. 65 | 5. 08 | 52. 7 | 14. 70 | 1. 70 | 16. 59 | 66. 7/15159 | 84. 5 | 2. 77 |
| 12 B-3 | 3/4ln. X 7/16ln. | 19. 050 | 12. 07 | 11. 68 | 5. 72 | 61. 5 | 16. 00 | 1. 85 | 19. 46 | 86. 7/19705 | 101. 8 | 3. 46 |
| 16 B-3 | 1in. X 11/16in. | 25. 400 | 15. 88 | 17. 02 | 8. 28 | 99. 8 | 21. 00 | 4. 15/3. 1 | 31. 88 | 160. 0/36364 | 203. 7 | 8. 13 |
| 20 B-3 | 11/2in.X19.56m. | 31. 750 | 19. 05 | 19. 56 | 10. 19 | 114. 2 | 26. 40 | 4. 5/3. 5 | 36. 45 | 250. 0/56818 | 290. 0 | 10. 82 |
| 24 B-3 | 11/2X1in | 38. 100 | 25. 40 | 25. 40 | 14. 36 | 150. 1 | 33. 20 | 6. 0/4. 8 | 48. 36 | 425. 0/96591 | 493. 0 | 20. 10 |
| 28 B-3 | 1-3/4X11/4in | 44. 450 | 27. 94 | 30. 99 | 15. 90 | 184. 2 | 36. 70 | 7. 5/6. 0 | 59. 56 | 530. 0/120454 | 609. 5 | 24. 92 |
| 32 B-3 | 2inX31mm | 50. 800 | 29. 21 | 30. 99 | 17. 81 | 183. 2 | 42. 00 | 7. 0/6. 0 | 58. 55 | 670. 0/152273 | 770. 5 | 31. 56 |
| 40 B-3 | 21/2inX11/2in | 63. 500 | 39. 37 | 38. 10 | 22. 89 | 226. 8 | 52. 96 | 8. 5/8. 0 | 72. 29 | 950. 0215909 | 1092. 5 | 48. 10 |
| 48 B-3 | 3inX1-3/4in | 76. 200 | 48. 26 | 45. 72 | 29. 24 | 281. 6 | 63. 80 | 12. 0/10. 0 | 91. 21 | 1500. 0/340909 | 1710. 0 | 75. 00 |
