V Pulleys – Aluminium Pilot Bore
Aluminium pulleys offer an ideal balance of lightweight design and high strength, making them suitable for a broad range of applications. Their excellent tensile strength enables them to handle heavy loads, while their inherent durability and resistance to elevated temperatures deliver reliable, long-term performance in demanding conditions. Unlike nylon or plastic alternatives, aluminium pulleys can accommodate the high torque and horsepower required in heavy-duty drive systems. This results in improved efficiency and extended service life for both the pulley and the belt, making aluminium the material of choice for high-performance timing and power transmission applications.

Product Specifications
A Section Range

| PCD | No of Grooves | Type | OD | W | HD | G mm | Over-All | LTB | Grub Screw | 1/2″ No Key | 5/8″ 3/16″ key | 3/4″ 3/16″ Key | 1″ 1/4″ Key | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| inches | mm | |||||||||||||
| 1.25 | 32 | 1 | 1 | 41 | 19 | 35 | 12.7 | 38 | 34 | 5/16” UNC | √ | √ | √ | |
| 1.5 | 38 | 1 | 1 | 49 | 19 | 35 | 12.7 | 38 | 34 | 5/16” UNC | √ | √ | √ | |
| 1.75 | 44 | 1 | 1 | 54 | 19 | 39 | 12.7 | 38 | 34 | 5/16” UNC | √ | √ | √ | |
| 02 | 50 | 1 | 1 | 61 | 19 | 40 | 12.7 | 38 | 34 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 34 | 41 | 55 | 49 | 5/16” UNC | √ | √ | √ | √ | ||||
| 2.25 | 57 | 1 | 1 | 67 | 19 | 39 | 12.7 | 38 | 33 | 5/16” UNC | √ | √ | √ | √ |
| 2.5 | 63 | 1 | 1 | 74 | 19 | 43 | 12.7 | 55 | 33 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 34 | 43 | 38 | 48 | 5/16” UNC | √ | √ | √ | √ | ||||
| 2.75 | 70 | 1 | 1 | 79 | 19 | 43 | 12.7 | 36 | 32 | 5/16” UNC | √ | √ | √ | √ |
| 3 | 76 | 1 | 1 | 86 | 19 | 43 | 12.7 | 38 | 35 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 34 | 49 | 55 | 43 | 5/16” UNC | √ | √ | √ | √ | ||||
| 3.25 | 82 | 1 | 1 | 92 | 19 | 45 | 12.7 | 48 | 35 | 5/16” UNC | √ | √ | √ | √ |
| 3.5 | 89 | 1 | 1 | 99 | 19 | 44 | 12.7 | 36 | 35 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 34 | 49 | 55 | 43 | 5/16” UNC | √ | √ | √ | √ | ||||
| 4 | 102 | 1 | 1 | 112 | 19 | 46 | 12.7 | 48 | 47 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 34 | 46 | 50 | 42 | 5/16” UNC | √ | √ | √ | √ | ||||
| 4.5 | 114 | 1 | 1 | 124 | 19 | 47 | 12.7 | 38 | 35 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 34 | 48 | 56 | 45 | 5/16” UNC | √ | √ | √ | √ | ||||
| 5 | 127 | 1 | 1 | 137 | 19 | 48 | 12.7 | 40 | 37 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 34 | 49 | 51 | 41 | 5/16” UNC | √ | √ | √ | √ | ||||
| 5.5 | 140 | 1 | 2 | 150 | 19 | 49 | 12.7 | 40 | 36 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 34 | 50 | 54 | 46 | 5/16” UNC | √ | √ | √ | √ | ||||
| 6 | 152 | 1 | 2 | 163 | 19 | 49 | 12.7 | 40 | 37 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 4 | 34 | 55 | 53 | 44 | 5/16” UNC | √ | √ | √ | √ | ||||
| 6.5 | 165 | 1 | 2 | 176 | 19 | 52 | 12.7 | 40 | 37 | 5/16” UNC | √ | √ | √ | √ |
| 7 | 178 | 1 | 2 | 189 | 19 | 57 | 12.7 | 40 | 38 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 4 | 34 | 57 | 53 | 44 | 5/16” UNC | √ | √ | √ | √ | ||||
| 8 | 203 | 1 | 2 | 215 | 20 | 55 | 12.7 | 45 | 42 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 4 | 34 | 55 | 68 | 47 | 5/16” UNC | √ | √ | √ | √ | ||||
| 9 | 229 | 1 | 2 | 248 | 20 | 55 | 12.7 | 44 | 42 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 4 | 34 | 55 | 55 | 47 | 5/16” UNC | √ | √ | √ | √ | ||||
| 10 | 254 | 1 | 2 | 265 | 20 | 55 | 12.7 | 49 | 47 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 4 | 34 | 55 | 59 | 49 | 5/16” UNC | √ | √ | √ | |||||
| 12 | 305 | 1 | 2 | 315 | 20 | 58 | 12.7 | 48 | 45 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 4 | 34 | 55 | 58 | 48 | 5/16” UNC | √ | √ | √ | |||||
| 14 | 355 | 1 | 2 | 369 | 21 | 66 | 12.7 | 21 | 66 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 4 | 34 | 67 | 34 | 67 | 5/16” UNC | √ | |||||||
| 15 | 381 | 1 | 2 | 393 | 20 | 67 | 12.7 | 62 | 60 | 5/16” UNC | √ | √ | √ | |
| 16 | 406 | 1 | 2 | 420 | 22 | 66 | 12.7 | 60 | 59 | 5/16” UNC | √ | √ | √ | |
| 2 | 4 | 35 | 67 | 66 | 56 | 5/16” UNC | √ | |||||||
| 18 | 457 | 1 | 2 | 471 | 22 | 75 | 12.7 | 66 | 63 | 5/16” UNC | √ | √ | √ | |
| 2 | 4 | 35 | 75 | 70 | 60 | 5/16” UNC | √ | |||||||
B Section Range

| PCD | No of Grooves | Type | OD | W | HD | G mm | Over-All | LTB | Grub Screw | 1/2″ No Key | 5/8″ 3/16″ key | 3/4″ 3/16″ Key | 1″ 1/4″ Key | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| inches | mm | |||||||||||||
| 2 | 50 | 1 | 1 | 63 | 24 | 40 | 16 | 44 | 38 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 44 | 43 | 34 | 59 | 5/16” UNC | √ | √ | √ | √ | ||||
| 2.5 | 63 | 1 | 1 | 76 | 24 | 44 | 16 | 43 | 38 | 5/16” UNC | √ | √ | √ | √ |
| 3 | 76 | 1 | 1 | 89 | 24 | 45 | 16 | 42 | 38 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 45 | 50 | 65 | 51 | 5/16” UNC | √ | √ | √ | √ | ||||
| 3.5 | 89 | 1 | 1 | 102 | 24 | 50 | 17 | 43 | 35 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 45 | 50 | 66 | 53 | 5/16” UNC | √ | √ | √ | √ | ||||
| 4 | 102 | 1 | 1 | 114 | 24 | 52 | 18 | 43 | 37 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 45 | 70 | 66 | 50 | 5/16” UNC | √ | √ | √ | √ | ||||
| 4.5 | 114 | 1 | 1 | 127 | 24 | 52 | 19 | 41 | 36 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 45 | 70 | 66 | 50 | 5/16” UNC | √ | √ | √ | √ | ||||
| 5 | 127 | 1 | 1 | 140 | 24 | 52 | 20 | 42 | 36 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 45 | 60 | 77 | 55 | 5/16” UNC | √ | √ | √ | √ | ||||
| 5.5 | 140 | 1 | 1 | 152 | 24 | 53 | 21 | 46 | 40 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 45 | 53 | 66 | 58 | 5/16” UNC | √ | √ | √ | √ | ||||
| 6 | 152 | 1 | 1 | 165 | 24 | 60 | 22 | 45 | 40 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 45 | 58 | 62 | 50 | 5/16” UNC | √ | √ | √ | √ | ||||
| 7 | 178 | 1 | 1 | 190 | 24 | 49 | 23 | 49 | 43 | 5/16” UNC | √ | √ | √ | √ |
| 2 | 3 | 45 | 55 | 66 | 51 | 5/16” UNC | √ | √ | √ | √ | ||||
| 8 | 203 | 1 | 1 | 190 | 24 | 49 | 23 | 49 | 43 | 5/16” UNC | √ | √ | √ | |
| 2 | 3 | 45 | 55 | 66 | 51 | 5/16” UNC | √ | √ | √ | √ | ||||
| 9 | 229 | 1 | 2 | 241 | 24 | 53 | 25 | 53 | 47 | 5/16” UNC | √ | √ | √ | |
| 2 | 3 | 45 | 57 | 68 | 53 | 5/16” UNC | √ | √ | √ | √ | ||||
| 10 | 254 | 1 | 2 | 267 | 24 | 56 | 26 | 49 | 44 | 5/16” UNC | √ | √ | √ | |
| 2 | 4 | 45 | 57 | 64 | 51 | 5/16” UNC | √ | √ | √ | |||||
| 12 | 305 | 1 | 2 | 318 | 24 | 65 | 27 | 48 | 46 | 5/16” UNC | √ | √ | √ | |
| 2 | 4 | 45 | 64 | 70 | 58 | 5/16” UNC | √ | √ | √ | |||||
| 14 | 355 | 1 | 2 | 368 | 24 | 68 | 28 | 62 | 58 | 5/16” UNC | √ | |||
| 2 | 4 | 45 | 67 | 74 | 69 | 5/16” UNC | ||||||||
| 16 | 406 | 1 | 2 | 419 | 24 | 68 | 29 | 58 | 52 | 5/16” UNC | √ | |||
| 2 | 4 | 45 | 73 | 75 | 62 | 5/16” UNC | √ | |||||||
| 18 | 457 | 1 | 2 | 470 | 24 | 67 | 30 | 65 | 64 | 5/16” UNC | √ | |||
| 2 | 4 | 45 | 78 | 71 | 55 | 5/16” UNC | √ | |||||||
M Section Range

| PCD | No of Grooves | Type | OD | W | HD | G | Over-All | LTB | Grub Screw | 1/2″ No Key | 5/8″ 3/16″ key | 3/4″ 3/16″ Key | 1″ 1/4″ Key | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| inches | mm | mm | ||||||||||||
| 1.5 | 38 | 1 | 1 | 44 | 16 | 34 | 9 | 35 | 34 | 5/16” UNC | √ | – | – | – |
| 1.75 | 1 | 1 | 50 | 16 | 42 | 9 | 35 | 34 | 5/16” UNC | √ | – | – | – | |
| 2 | 50 | 1 | 1 | 57 | 16 | 33 | 9 | 30 | 34 | 5/16” UNC | √ | – | – | – |
| 2.5 | 63 | 1 | 1 | 69 | 16 | 44 | 9 | 36 | 33 | 5/16” UNC | √ | – | – | – |
| 3 | 76 | 1 | 1 | 82 | 16 | 44 | 9 | 35 | 35 | 5/16” UNC | √ | – | – | – |
