Product Description
Adjustable Speed VPulleys are VPulleys with muti-usage and adjustable speeds. They are available with standard straight bore and taper lock bore.
Adjustable Speed VPulleys are made of GG25 high-quality grey cast iron or other materials requested by the customers.The pulleys are machined by highly precise CNC,dynamically balanced and black coated.They have very high transmiting precision and efficiency.
parameter

| Spcfctn | Type | O.D | F | G | L | K | Stock Bores Marked"●" | Wt Lbs. | ||||||||||
| Max | Min | Max | Min | 1/2 | 5/8 | 3/4 | 7/8 | 1 | 11/8 | 11/4 | 13/8 | 15/8 | ||||||
| 1VP25 1VP30 1VP34 1VP40 1VP44A | 1 1 1 1 1 | 2.50 2.87 3.15 3.75 4.15 | 13/16 13/16 1 11/16 11/16 | 9/16 9/16 11/16 11/16 11/16 | 5/8 5/8 13/16 7/8 7/8 | 3/8 3/8 1/2 1/2 1/2 | 11/2 121/32 17/8 17/8 17/8 | 5/8 19/32 21/32 21/32 21/32 | ● ● ● ● ● | ● ● ● ● | ● ● ● ● | ● ● | 0.8 0.9 1.2 1.7 1.9 | |||||
| 1VP44B 1VP50A 1VP50B 1VP56A 1VP56B | 2 1 2 1 2 | 4.15 4.75 4.75 5.35 5.35 | 11/8 11/16 11/8 11/16 11/8 | 3/4 11/16 3/4 11/16 3/4 | 7/8 7/8 7/8 7/8 7/8 | 1/2 1/2 1/2 1/2 11/2 | 17/8 2 17/8 17/8 17/8 | 11/16 25/32 11/16 21/32 11/16 | ● ● | ● ● | ● ● | ● ● ● | ● ● ● | ● ● ● | 2.6 1.9 2.9 2.7 3.4 | |||
| 1VP60 1VP60A 1VP62 1VP65 1VP65A | 2 3 2 2 3 | 6.00 6.00 5.95 6.50 6.50 | 11/4 11/4 11/8 11/4 11/4 | 7/8 7/8 3/4 7/8 7/8 | 11/32 11/32 7/8 11/32 11/32 | 21/32 21/32 1/2 21/32 21/32 | 121/32 25/32 129/32 121/32 25/32 | 7/16 15/16 21/32 7/16 15/16 | ● | ● ● ● | ● ● ● | ● | ● ● ● | ● | ● ● ● | ● ● | 5.5 5.3 5.7 5.8 5.5 | |
| 1VP68 1VP71 1VP71A 1VP75 1VP75A | 2 2 3 2 3 | 6.55 7.10 7.10 7.50 7.50 | 11/8 11/4 11/4 11/4 11/4 | 3/4 7/8 7/8 7/8 7/8 | 7/8 11/32 11/32 11/32 11/32 | 1/2 21/32 21/32 21/32 21/32 | 129/32 121/32 25/32 121/32 25/32 | 21/32 7/16 15/16 7/16 15/16 | ● | ● ● ● | ● ● ● | ● | ● ● ● | ● ● | ● ● ● | ● ● | 6.4 6.8 6.5 7.3 7.0 | |

| Part No. | Diameter range | Stock bores marked "X" | ||||||||||||||
| "3L" Belts | "4L" or "A" Belts | "5L" or "B" Belts | ||||||||||||||
| Min. Pitch | Turns Open | Max. Pitch | Turns Open | Min. Pitch | Turns Open | Max. Pitch | Turns Open | Min. Pitch | Turns Open | Max. Pitch | Turns Open | 1/2 | 5/8 | 3/4 | 7/8 | |
| CVL 25 CVL 30 | 1.6 1.8 | 4 4 | 2.4 2.7 | 0 0 | - - | - - | - - | - - | - - | - - | - - | - - | ● ● | ● ● | ||
| CVL 34 CVL 40 CVL 44 CVM 50 | 1.7 2.3 2.7 3.3 | 4 4 4 4 | 2.5 3.1 3.5 4.1 | 0 0 0 0 | 1.9 2.4 2.8 3.4 | 5 5 5 5 | 2.9 3.4 4.4 4.4 | 0 0 0 0 | 2.4 2.7 3.1 3.7 | 5 6 6 6 | 3.2 3.7 4.1 4.7 | 1 1 1 1 | ● ● ● ● | ● ● ● ● | ● ● ● ● | ● ● ● |
| Part No. | Dimensions | Wt. Lbs. | ||||||
| OD | F | G | L | K | ||||
| Max | Min. | Max. | Min. | |||||
| CVL25 CVL30 | 2.50" 2.87 | 25/32" 25/32 | 17/32" 17/32 | 5/8" 5/8 | 3/8" 3/8 | 11/2" 11/2 | 37/64" 37/64 | 0.8 1.0 |
| CVL34 CVL40 CVL44 CVM50 | 3.15 3.75 4.15 4.75 | 1 1 1 11/16 | 5/8 5/8 5/8 11/16 | 7/8 7/8 7/8 7/8 | 1/2 1/2 1/2 1/2 | 111/16 111/16 111/16 17/8 | 37/64 37/64 37/64 21/32 | 1.1 1.3 1.3 2.8 |

| Part No. | OD | D | Bore max | L | set screws | dr | wt Lbs | ||
| min | max | ||||||||
| SB33-1 | 3.26 | 19/16 | 7/8 | 17/8 | 1/4x1/4 | 2.48 2.25 | 3.11 3.00 | 3V 3/8x5/16 | 1.86 |
| SB37-1 | 3.66 | 17/8 | 1 | 17/8 | 1/4x1/4 | 2.65 2.60 2.40 2.36 | 3.50 3.45 3.45 3.35 | 3V 4L/A 3/8x5/16 1/2x5/16 | 2.14 |
| SB42-1 | 4.25 | 115/16 | 11/8 | 17/8 | 1/4x1/4 | 3.10 3.20 2.90 2.95 | 3.70 4.05 3.68 4.00 | 3V 4L/A 3/8x5/16 1/2x5/16 | 3.42 |
| SB47-1 | 4.72 | 21/4 | 11/8 | 17/8 | 1/4x1/4 | 3.60 3.70 3.40 3.50 | 4.20 4.55 4.20 4.50 | 3V 4LA 3/8x5/16 12n516 | 3.63 |
| SB55-1 | 5.45 | 21/4 | 11/2 | 17/8 | 1/4x1/4 | 4.30 4.40 4.60 4.10 4.15 4.30 | 4.88 5.20 5.16 4.85 5.10 5.05 | 3V 4L/A 5V/B 3/8x5/16 1/2x5/16 21/32x13/32 | 5.40 |
| SB63-1 | 6.30 | 31/8 | 21/16 | 21/16 | 5/16x5/16 | 4.70 4.80 5.00 4.50 4.55 4.70 | 5.30 5.60 6.00 5.25 5.75 5.90 | 3V 4L/A 5V/B 3/8x5/16 1/2x5/16 21/32x13/32 | 9.34 |
| SB71-1 | 7.10 | 31/8 | 21/16 | 21/16 | 5/16x5/16 | 5.55 5.75 5.30 5.50 | 6.40 6.80 6.35 6.70 | 4L/A 5V/B 1/2x5/16 21/32x13/32 | 11.20 |

| Part No. | OD | D | Bore max | L | set screws | dr | wt Lbs | ||
| min | max | ||||||||
| SB33-2 | 3.26 | 19/16 | 7/8 | 3" | 1/4x1/4 | 2.48 2.25 | 3.11 3.00 | 3V 3/8x5/16 | 3.10 |
| SB37-2 | 3.66 | 17/8 | 1 | 3" | 1/4x1/4 | 2.65 2.60 2.40 2.36 | 3.50 3.45 3.45 3.35 | 3V 4L /A 3/8x5/16 1/2x5/16 | 3.63 |
| SB42-2 | 4.25 | 115/16 | 11/8 | 3" | 1/4x1/4 | 3.10 3.20 2.90 2.95 | 3.70 4.05 3.68 4.00 | 3V 4L/A 3/8x5/16 1/2x5/16 | 4.46 |
| SB47-2 | 4.72 | 21/4 | 11/8 | 3" | 1/4x1/4 | 3.60 3.70 3.40 3.50 | 4.20 4. 55 4.20 4.50 | 3V 4L/A 3/8x5/16 1/2x5/16 | 5.60 |
| SB55-2 | 5.45 | 21/4 | 11/2 | 3" | 1/4x1/4 | 4.30 4.40 4.60 4.10 4.15 4.30 | 4.88 5.20 5.16 4.85 5.10 5.05 | 3V 4LA 5V/B 3/8x5/16 1/2x5/16 21/32x1332 | 9.34 |
| SB63-2 | 6.30 | 31/8 | 21/16 | 39/16 | 5/16x5/16 | 4.70 4.80 5.00 4.50 4.55 4.70 | 5.30 5.60 6.00 5.25 5.75 5.90 | 3V 4L/A 5V/B 3/8x5/16 1/2x5/16 21/32x13/32 | 15.60 |
| SB71-2 | 7.10 | 31/8 | 21/16 | 39/16 | 5/16x5/16 | 5.55 5.75 5.30 5.50 | 6.40 6.80 6.35 6.70 | 4L/A 5V/B 1/2x5/16 21/32x13/32 | 19.10 |

| Part No. | O.D | D | Bore dmax | B | set screws | dr | kg | ||
| min | max | ||||||||
| SB083-1 | 83 | 40 | 26 | 48 | M6x6 | 58 53 | 72 72 | SPZ Z10x6 | 0.90 |
| SB093-1 | 93 | 45 | 28 | 48 | M6x6 | 65 68 60 63 | 78 85 78 85 | SPZ SPA Z10x6 A13x8 | 1.03 |
| SB108-1 | 108 | 50 | 28 | 48 | M6x6 | 80 83 75 78 | 93 100 93 100 | SPZ SPA Z10x6 A13x8 | 1.65 |
| SB120-1 | 120 | 55 | 28 | 48 | M6x6 | 92 95 87 90 | 104 112 104 112 | SPZ SPA Z10x6 A13x8 | 1.75 |
| SB138-1 | 138 | 55 | 38 | 48 | M6x6 | 110 113 119 115 108 111 | 122 130 131 122 130 128 | SPZ SPA SPB Z10x6 A13x8 B17x11 | 2.60 |
| SB160-1 | 160 | 80 | 52 | 53 | M8x8 | 119 122 128 113 117 120 | 133 140 150 133 138 150 | SPZ SPA SP8 Z10x6 A13x8 B17x11 | 4.50 |
| SB180-2 | 180 | 80 | 52 | 90 | M8x8 | 142 148 137 140 | 160 170 158 170 | SPA SPB A13x8 B17x11 | 5.40 |

| Part No. | O.D | D | Bore dmax | B | set screws | dr | kg | ||
| min | max | ||||||||
| SB083-2 | 83 | 40 | 26 | 76 | M6x6 | 58 53 | 72 72 | SPZ Z10x6 | 1.50 |
| SB093-2 | 93 | 45 | 28 | 76 | M6x6 | 65 68 60 63 | 78 85 78 85 | 5PZ SPA Z10x6 A13x8 | 1.75 |
| SB108-2 | 108 | 50 | 28 | 76 | M6x6 | 80 83 75 78 | 93 100 93 100 | SPZ SPA Z10x6 A13x8 | 2..15 |
| SB120-2 | 120 | 55 | 28 | 76 | M6x6 | 92 95 87 90 | 104 112 104 112 | SPZ SPA Z10x6 A13x8 | 2.70 |
| SB138-2 | 138 | 55 | 38 | 76 | M6x6 | 110 113 119 115 108 111 | 122 130 131 122 130 128 | SPZ SPA SPB Z10x6 A13x8 B17x 11 | 4.50 |
| SB160-2 | 160 | 80 | 52 | 90 | M8x8 | 119 122 128 113 117 120 | 133 140 150 133 138 150 | SPZ SPA SPB Z10x6 A13x8 B17x 11 | 7.50 |
| SB180-2 | 180 | 80 | 52 | 90 | M8x8 | 142 148 137 140 | 160 170 158 170 | SPA SPB A13x8 B17x 11 | 9.20 |