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Product Specifications:
| Item | V-Belt Sheave |
| 4l Pitch Diameter | 2.1" |
| 4l, A, Or Ax Belt Pitch Dia. | 2.1" |
| 4la Or A Belt Pitch Dia. | 2.1" |
| 5l Pitch Diameter | 2.5" |
| 5l, B, Or Bx Belt Pitch Dia. | 2 1/2" |
| A Pitch Diameter | 2.1" |
| Ax Pitch Diameter | 2.1" |
| B Pitch Diameter | 2 1/2" |
| Belt Type | 4L |
| Bore Diameter | 1" |
| Bore Type | Fixed |
| Bore-to-size Bore Dia. | 1" |
| Bushing Required | None |
| Bx Pitch Diameter | 2.5" |
| Construction | Solid |
| Datum Dia. | 2 1/2" |
| Dimension E | 0.47" |
| Dimension L | 1.97" |
| Face Width | 1 3/4" |
| Fits Shaft Dia. | 1" |
| For Belt Section | 4L, 5L, A, Ax, B, Bx |
| For V-belt Type | Classical, Cogged |
| Hub Dia. | 1 7/8" |
| Hub Diameter | 2 1/8" |
| Hub Projection | 0.469" |
| Hub Type | One Side |
| Includes | Set Screw |
| Industry Number | 2BK271 |
| Keyway | Yes |
| Keyway Depth | 1/8" |
| Keyway Size | 1/4" x 1/8" |
| Keyway Width | 1/4" |
| Length Through Bore | 1 31/32" |
| Material | Cast Iron |
| Material Fabrication | Cast |
| Max. Rpm | 8780 RPM |
| No. Of Grooves | 2 |
| Number Of Set Screws | 1 |
| Outside Dia. | 2.85" |
| Overall Length | 2.219" |
| Overall Width | 2 1/4" |
| Pitch Dia. | 2.1" (4L, A), 2.5" (5L, B) |
| Pulley Construction | Plain |
| Pulley Industry Number | 2BK27 |
| Pulley Series | Series BK |
| Set Screw Included | Yes |
Shipping Info:
| Ship weight (kg) | 0.77 |
| Ship height (cm) | 6.35 |
| Ship length (cm) | 9.4 |
| Ship width (cm) | 9.14 |
| HS code | 8483509040 |
| Country of Origin | US |
Product Variants
| Product | Model | Bore Type | Outside Dia. | Bore Dia. | For Belt Section | 4l, A, Or Ax Belt Pitch Dia. | Industry Number | 5l, B, Or Bx Belt Pitch Dia. | Max. Rpm | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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AK3212 | Fixed | 3 1/4" | 1/2" | 3L, 4L, A, Ax | 3" | AK3212 | - | 7700 RPM | €33.70 | |
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AK3258 | Fixed | 3 1/4" | 5/8" | 3L, 4L, A, Ax | 3" | AK3258 | - | 7700 RPM | €33.70 | |
![]() |
AK3234 | Fixed | 3 1/4" | 3/4" | 3L, 4L, A, Ax | 3" | AK3234 | - | 7700 RPM | €33.70 | |
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AK32X7/8 | Fixed | 3 1/4" | - | 3L, 4L, A, Ax | 3" | AK3278 | - | 7700 RPM | €39.79 | |
![]() |
AK321 | Fixed | 3 1/4" | 1" | 3L, 4L, A, Ax | 3" | AK321 | - | 7700 RPM | €33.70 | |
![]() |
AK1041 | Fixed | - | 1" | 3L, 4L, A, Ax | 10" | AK1041 | - | 2440 RPM | €132.62 | |
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AK10434 | Fixed | - | 3/4" | 3L, 4L, A, Ax | 10" | AK10434 | - | 2440 RPM | €132.62 |
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TB WOODS 2BK27X1 FHPBoredtosize V-Belt Sheave, Cast Iron, 4L Type Belt, 1.875 inch Hub Dia.
€94.19 /unit



