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2BK-Series Pulleys For V-Belts
2BK pulleys can be used with 2-banded A belts, 2-banded B-belts, 2-banded cogged AX belts, 2-banded cogged BX belts, single A, B, 4L, 5L, AX, BX, AA, and BB belts. 2BK pulleys are commonly known as double groove BK pulleys and range in diameter from 2.50" to 18.75" but custom ones are also available upon request. Double BK series pulleys are typically used in medium to heavy-duty agricultural and industrial applications. Our double v-belt pulleys are manufactured using state of the art techniques combined with having premium high-performance and high-strength features like using grade 35 cast iron instead of grade 25.2BK Series Pulley Size Chart
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Outside Diameter
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Pitch Diameter (4L/A)
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Pitch Diameter (5L/B)
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Type
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Dimension (F)
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Dimension (L)
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Dimension (P)
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Dimension (C)
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Pulley Weight
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| 2.50" | 1.90" | 2.30" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 1.3 LBS | |
| 2.70" | 2.10" | 2.50" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 1.6 LBS | |
| 2.95" | 2.20" | 2.60" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 1.9 LBS | |
| 3.15" | 2.40" | 2.80" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 2.3 LBS | |
| 3.35" | 2.60" | 3.00" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 2.6 LBS | |
| 3.55" | 2.80" | 3.20" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 2.8 LBS | |
| 3.75" | 3.00" | 3.40" | 1 | 1-3/4" | 1-31/32" | 15/32" | 1/4" | 3.3 LBS | |
| 3.95" | 3.20" | 3.60" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 3.3 LBS | |
| 4.25" | 3.50" | 3.90" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 3.3 LBS | |
| 4.45" | 3.70" | 4.10" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 3.7 LBS | |
| 4.75" | 4.00" | 4.40" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 4.1 LBS | |
| 4.95" | 4.20" | 4.60" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 4.5 LBS | |
| 5.25" | 4.50" | 4.90" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 4.5 LBS | |
| 5.45" | 4.70" | 5.10" | 2 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 5.1 LBS | |
| 5.75" | 5.00" | 5.40" | 3 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 4.9 LBS | |
| 5.95" | 5.20" | 5.60" | 3 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 4.8 LBS | |
| 6.25" | 5.50" | 5.90" | 3 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 5.0 LBS | |
| 6.45" | 5.70" | 6.10" | 3 | 1-3/4" | 1-15/32" | 15/32" | 3/4" | 5.0 LBS | |
| 6.75" | 6.00" | 6.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 6.6 LBS | |
| 7.75" | 7.00" | 7.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 7.2 LBS | |
| 8.75" | 8.00" | 8.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 8.4 LBS | |
| 9.75" | 9.00" | 9.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 9.4 LBS | |
| 10.75" | 10.00" | 10.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 10.4 LBS | |
| 11.75" | 11.00" | 11.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 11.8 LBS | |
| 12.75" | 12.00" | 12.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 14.9 LBS | |
| 13.75" | 13.00" | 13.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 16.3 LBS | |
| 15.75" | 15.00" | 15.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 18.0 LBS | |
| 18.75" | 18.00" | 18.40" | 3 | 1-3/4" | 1-19/32" | 11/32" | 1/2" | 23.3 LBS |
