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Home / All / Belt Pulleys / Sheave Pulley / BK series V-Belt Sheave / 1 Groove BK Sheave
1 Groove BK Sheave
1 Groove BK Sheave1 Groove BK Sheave

1 Groove BK Sheave

High-strength cast iron BK-1 sheave for compact, high-speed industrial power transmission.
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CategoriesBK series V-Belt Sheave
BrandCTS-ChinaTransmissionS
ModelBK-1 Sheave
MaterialCast Iron
Belt TypeB Section / 5L V-belts
Groove Quantity1 Groove
Pilot Bore/ QD BushedBlack Phosphate/ Rust Protection
Bore TypePilot Bore/ Finished Bore
BalanceDynamically Balanced
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Detail Information

About 1 Groove BK Sheave

A BK-1 Sheave is a single-groove classical V-belt sheave designed for use with B-section belts. In North American industrial markets, BK sheaves are commonly used in medium-duty industrial transmission systems requiring greater power transmission capacity than A-section belt drives.


Compared with AK sheaves, BK sheaves use wider B-section belts, allowing improved load capacity and better performance in industrial machinery operating under higher torque conditions. BK-1 sheaves are widely used in compressors, pumps, conveyors, agricultural machinery, and industrial processing equipment.


For more information or to request a quote on our BK-1 Sheave, please don't hesitate to contact us.

BK-1 Sheave Dimension

CTS can supply a complete range of BK-1 sheave sizes for different transmission requirements.

BK-1 Series Sheave Solid Web and Arm/Spoke Type
Part
Number		DiameterType Stock Finished Bores
Includes Keyway and Setscrew		FE L
Thru
Bore		Weight
Ib
(Approx.)
ODDatum
A(4L)
Belts		Pitch
3L
Belts
BK232.3-2.1 A0.625 1  0.81250.40631.06250.4
BK242.41.82.2 A0.50.6250.75 0.875 0.81250.40631.06250.4
BK252.51.92.3 A0.50.6250.75 0.875 0.81250.40631.0625 0.5 
BK262.622.4 A0.50.6250.75 0.875 0.81250.40631.06250.6 
BK272.72.12.5 B0.50.6250.75 0.8751.125  0.81250.40631.06250.6 
BK282.952.22.6 B0.50.6250.75 0.87511.125 0.81250.40631.06250.8 
BK303.152.42.8 B0.50.6250.75 0.87511.125 0.81250.40631.06250.8 
BK323.352.63 B0.50.6250.75 0.8751 0.81250.40631.0625 0.8 
BK343.552.83.2 B0.50.6250.75 0.87511.125 0.8750.40631.15631.3 
BK363.7533.4 B0.50.6250.75 0.87511.125 0.8750.40631.15631.5 
BK403.953.23.6 B0.50.6250.75 0.87511.125 0.8750.40631.15631.5 
BK454.253.53.9 B0.50.6250.75 0.87511.125 0.8750.40631.15631.8 
BK464.353.64 B 0.875 0.8750.40631.1563 18 
BK474.453.74.1 B0.50.6250.75 0.87511.125 0.8750.40631.1563 1.8 
BK484.553.84.2 B0.50.6250.75 0.8751.125 0.8750.40631.1563 2.0 
BK504.7544.4 B0.50.6250.75 0.8750.937511.125 0.8750.40631.15632.0
BK524.954.24.6 B0.50.6250.75 0.87511.125 0.8750.40631.15632.0
BK555.254.54.9 B0.50.6250.75 0.87511.125 1.1875 0.8750.40631.15632.2 
BK575.454.75.1 B0.6250.75 0.8750.937511.125 0.8750.40631.15632.3 
BK605.7555.4 B0.50.6250.75 0.87511.125 1.1875 0.8750.40631.15632.3 
BK625.955.25.6 B0.5 0.6250.75 0.8750.937511.125 1.1875 0.8750.40631.15632.4 
BK656.255.55.9 B0.6250.75 0.87511.125 0.8750.40631.15632.7 
BK676.455.76.1 C0.6250.75 0.87511.125 0.8750.40631.15632.8 
BK706.7566.4 C0.6250.75 0.8750.937511.125 1.18751.4375 0.8750.6563*1.46883.3 
BK726.956.26.6 C0.75 11.125 1.375 1.4375 0.8750.65631.4688 3.9 
BK757.256.56.9 C0.75 11.125 1.4375 0.8750.65631.46883.9
BK777.456.77.1 C0.75 11.125 1.3751.4375 0.8750.65631.46884.1
BK807.7577.4 C0.625 0.75 0.87511.125 1.18751.25 1.3751.4375 0.8750.65631.46884.4 
BK858.257.57.9 C0.75 11.125 1.18751.3751.4375 0.8750.65631.4688 5.0 
BK908.7588.4 C0.75 0.8750.9375 11.125 1.18751.3751.4375 0.8750.65631.4688 5.0 
BK959.258.58.9 C0.75 11.125 1.3751.4375 0.8750.65631.46885.4 
BK1009.7599.4 C0.75 0.87511.125 1.18751.251.3751.4375 0.8750.65631.46885.6 
BK10510.259.59.9 C 1 1.3751.4375 0.8750.65631.46885.8 
BK11010.751010.4 C0.75 11.125 1.18751.3751.4375 0.8750.65631.4688 6.4 
BK11511.2510.510.9 C 1 1.3751.4375 0.8750.65631.4688 6.9 
BK12011.751111.4 C0.75 1 1.18751.375 1.4375 0.8750.65631.46887.4
BK13012.751212.4 C0.75 0.875 11.125  1.18751.4375 0.8750.65631.46888.4
BK14013.751313.4 C0.75 1 1.1875 1.4375 0.8750.65631.4688 9.4 
BK16015.751515.4  C 1 1.125  1.1875 1.25 1.4375 0.8750.65631.4688 11.4 
BK190 18.7518 18.4  C 1  1.1875 1.25 1.4375  0.8750.65631.4688 13.4 

Additional sizes and customized dimensions are available according to customer requirements.

Bore & Mounting Options

CTS offers different bore configurations for various shaft installation systems.

Pilot Bore BK-1 Sheave
Suitable for customers requiring custom bore machining and keyway processing.

Finished Bore BK-1 Sheave
Supplied with finished bore and keyway for direct installation.
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