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Finished Bore Sheaves

Finished bore sheaves are precision-machined components used in power transmission systems to transmit rotational motion and torque between shafts using belts. They feature a machined bore with a keyway and set screws for a secure fit onto the shaft. They are available in various sizes, materials, and groove profiles to accommodate different belt types. The selection of the appropriate finished bore sheave is essential for optimal power transmission efficiency, minimal belt wear, and smooth system operation.
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#136187
455576
Dodge 455576 2A3.0B3.4-SH dual duty V-belt sheave, A/B section, 3.0" A pitch diameter, 3.4" B pitch diameter, QD bushed bore 7/16" to 1-11/16", cast iron construction, 2-groove design for standard V-belts.
Brand Dodge
Model 455576
$76.29 Each
Free shipping
#253085
AK124 1
Martin AK124 1 FHP (Fractional Horsepower) sheave, cast iron V-belt sheave with 12.250" outside diameter and finished bore. Suitable for light-duty power transmission drives.
Brand Martin Sprocket
Model AK124 1
$102.97 Each
Free Shipping orders over $100
#253089
AK124 3/4
Martin AK124 3/4 FHP sheave is a cast iron V-belt sheave with 12.250" outside diameter and 3/4" finished bore. Suitable for fractional horsepower drives.
Brand Martin Sprocket
Model AK124 3/4
$102.97 Each
Free Shipping orders over $100
#253209
AK41 3/4
Martin AK41 3/4 FHP sheave, cast iron V-belt sheave with 3.950" outside diameter and 3/4" finished bore. Suitable for fractional horsepower drives.
Brand Martin Sprocket
Model AK41 3/4
$34.86 Each
Free shipping
#253211
AK41 7/8
Martin AK41 7/8 FHP (Fractional Horsepower) sheave. Cast iron V-belt sheave with 3.950" outside diameter and 7/8" finished bore. For light-duty power transmission applications.
Brand Martin Sprocket
Model AK41 7/8
$34.86 Each
Free shipping
#253289
AK64 1
Martin AK64 1 FHP (Fractional Horsepower) sheave, cast iron V-belt sheave with 6.250" outside diameter and finished bore. For light-duty power transmission drives.
Brand Martin Sprocket
Model AK64 1
$47.77 Each
Free shipping
#253318
AK74 1
Martin AK74 1 FHP (Fractional Horsepower) V-belt sheave is a cast iron sheave with a 7.250" outside diameter and a 1" finished bore. Designed for light-duty power transmission applications requiring a compact, durable sheave.
Brand Martin Sprocket
Model AK74 1
$56.49 Each
Free shipping
#253319
AK74 1 1/4
Martin AK74 1 1/4 FHP (Fractional Horsepower) V-belt sheave with 1-1/4" finished bore. Cast iron construction, 7.25" outside diameter. Designed for A/4L section V-belts in light-duty power transmission applications.
Brand Martin Sprocket
Model AK74 1 1/4
$56.49 Each
Free shipping
#253320
AK74 1 1/8
Martin AK74 1 1/8 FHP (Fractional Horsepower) sheave. Cast iron V-belt sheave with 7.250" outside diameter and 1-1/8" finished bore. Suitable for light-duty power transmission applications.
Brand Martin Sprocket
Model AK74 1 1/8
$56.49 Each
Free shipping
#253321
AK74 1 3/16
Martin AK74 1 3/16 FHP (Fractional Horsepower) sheave. Cast iron V-belt sheave with 7.250" outside diameter and 1-3/16" finished bore. For light-duty power transmission drives.
Brand Martin Sprocket
Model AK74 1 3/16
$56.49 Each
Free shipping
#253323
AK74 1/2
Martin AK74 1/2 FHP (Fractional Horsepower) V-belt sheave, cast iron construction with 7.250" outside diameter and 1/2" finished bore. Designed for light-duty power transmission drives requiring a compact, single-groove sheave.
Brand Martin Sprocket
Model AK74 1/2
$56.49 Each
Free shipping
#253553
BK55 7/8
Martin BK55 7/8 FHP sheave is a cast iron V-belt sheave with 5.250" outside diameter and 7/8" finished bore. Suitable for fractional horsepower drives and compatible with standard V-belts.
Brand Martin Sprocket
Model BK55 7/8
$44.50 Each
Free shipping
#253564
BK60 1
Martin BK60 1 FHP (Fractional Horsepower) sheave is a bored-to-size cast iron V-belt sheave with 5.75" outside diameter and 1" finished bore. Designed for light-duty power transmission applications.
Brand Martin Sprocket
Model BK60 1
$47.77 Each
Free shipping
#253565
BK60 1 1/8
Martin BK60 1 1/8 FHP sheave is a cast iron V-belt sheave with 5.750" outside diameter and 1-1/8" finished bore. This Bored-to-Size (BS) sheave includes keyway and set screws for direct shaft mounting. Suitable for fractional horsepower drives.
Brand Martin Sprocket
Model BK60 1 1/8
$47.77 Each
Free shipping
#253583
BK65 1
Martin BK65 1 FHP (Fractional Horsepower) V-belt sheave, bored-to-size with keyway and setscrews. Cast iron construction, 6.250" outside diameter, 1" finished bore. For A/4L section V-belts.
Brand Martin Sprocket
Model BK65 1
$53.95 Each
Free shipping
#254321
2AK25 1
Martin 2AK25 1 FHP (Fractional Horsepower) sheave is a 2-groove A-section (4L) V-belt sheave with 2.55" outside diameter and 1" finished bore. Steel construction for light-duty power transmission drives.
Brand Martin Sprocket
Model 2AK25 1
$41.59 Each
Free shipping
#254323
2AK25 5/8
Martin 2AK25 5/8 FHP Sheave is a 2-groove A-section (4L) V-belt sheave with 2.55" outside diameter and 5/8" finished bore. Steel construction for fractional horsepower drives.
Brand Martin Sprocket
Model 2AK25 5/8
$41.59 Each
Free shipping
#254398
2AK51 1 3/8
Martin 2AK51 1 3/8 FHP (Fractional Horsepower) sheave. Cast iron V-belt sheave with 4.950" outside diameter, 1-3/8" finished bore. For light-duty power transmission drives.
Brand Martin Sprocket
Model 2AK51 1 3/8
$82.64 Each
Free shipping
#254405
2AK54 1 3/8
Martin 2AK54 1 3/8 FHP sheave is a 2-groove A-section (4L) V-belt sheave with 5.250" outside diameter, cast iron construction, and 1-3/8" finished bore. Designed for fractional horsepower drives.
Brand Martin Sprocket
Model 2AK54 1 3/8
$83.54 Each
Free shipping
#254529
2BK32 1
Martin 2BK32 1 V-belt sheave for fractional horsepower drives. 2-groove B-section (5L) sheave with 3.35" OD and 1" finished bore. Steel construction. Suitable for light-duty power transmission applications.
Brand Martin Sprocket
Model 2BK32 1
$65.47 Each
Free shipping
#254542
2BK36 1
Martin 2BK36 1 FHP (Fractional Horsepower) V-belt sheave. 2-groove B-section (5L) cast iron sheave with 3.75" outside diameter and 1" finished bore. Suitable for light-duty power transmission drives.
Brand Martin Sprocket
Model 2BK36 1
$70.20 Each
Free shipping
#345429
AK1241
TB Woods AK1241 single-groove FHP V-belt sheave with 12.25" outside diameter and 1" finished bore with keyway. Compatible with A, 4L, and 3L cross-section belts. Cast-iron construction, balanced for industrial drives up to 2050 RPM.
Brand TB Woods
Model AK1241
$157.68 Each
Free Shipping orders over $100
#345445
AK94114
TB Woods AK94114 single-groove FHP V-belt sheave with 9.25" outside diameter and 1-1/4" finished bore with keyway. Compatible with A, 4L, and 3L cross-section belts. Cast-iron construction, balanced for industrial drives up to 2710 RPM.
Brand TB Woods
Model AK94114
$250.64 Each
Free Shipping orders over $100
#345778
AK811
TB Woods AK811 single-groove FHP V-belt sheave with 7.95" outside diameter and 1" finished bore with keyway. Compatible with A, 4L, and 3L cross-section belts. Cast-iron construction, balanced for industrial drives up to 3150 RPM.
Brand TB Woods
Model AK811
$154.55 Each
Free Shipping orders over $100
#345783
AK1041
TB Woods AK1041 single-groove FHP V-belt sheave with 10.4" outside diameter and 1" finished bore with keyway. Compatible with A, 4L, and 3L cross-section belts. Cast-iron construction, balanced for industrial drives up to 2440 RPM.
Brand TB Woods
Model AK1041
$118.09 Each
Free Shipping orders over $100
#345948
BK77138
TB Woods BK77138 single-groove FHP V-belt sheave with 7.45" outside diameter and 1-3/8" finished bore with keyway. Compatible with B, 5L, A, and 4L cross-section belts. Cast-iron construction, balanced for industrial drives up to 3360 RPM.
Brand TB Woods
Model BK77138
$163.32 Each
Free Shipping orders over $100
#346061
2BK401
TB Woods 2BK401 two-groove FHP V-belt sheave with 4.0" outside diameter and 1" finished bore with keyway. Compatible with B, 5L, A, and 4L cross-section belts. Cast-iron construction, balanced for industrial drives up to 6,330 RPM.
Brand TB Woods
Model 2BK401
$120.55 Each
Free Shipping orders over $100
#346755
AK5934
TB Woods AK5934 single-groove FHP V-belt sheave with 5.75" outside diameter and 3/4" finished bore with keyway. Compatible with A, 4L, and 3L cross-section belts. Cast-iron construction, balanced for industrial drives up to 4,350 RPM.
Brand TB Woods
Model AK5934
$93.75 Each
Free shipping
#347196
AK3034
TB Woods AK3034 single-groove FHP V-belt sheave with 3.0" outside diameter and 3/4" finished bore with keyway. Compatible with A, 4L, and 3L cross-section belts. Cast-iron construction, balanced for industrial drives up to 8200 RPM.
Brand TB Woods
Model AK3034
$51.80 Each
Free shipping
#347204
2BK451
TB Woods 2BK451 two-groove FHP V-belt sheave with 4.5" outside diameter and 1" finished bore with keyway. Compatible with B, 5L, A, and 4L cross-section belts. Cast-iron construction, balanced for industrial drives up to 5890 RPM.
Brand TB Woods
Model 2BK451
$129.88 Each
Free Shipping orders over $100
#347266
6J16034
TB Woods 6J16034 Sure-Flex Plus Type J flange for Size 6 elastomeric sleeve coupling with 3/4" finished bore. Compatible with EPDM, Neoprene, Hytrel, and Urethane sleeves; rated up to 1,320 in-lb continuous torque with EPDM/Neoprene and 3,960 in-lb with Hytrel.
Brand TB Woods
Model 6J16034
$112.17 Each
Free Shipping orders over $100
#347279
BK1901
TB Woods BK1901 single-groove FHP V-belt sheave with 18.75" outside diameter and 1" finished bore with keyway. Compatible with B, 5L, A, and 4L cross-section belts. Cast-iron construction, balanced for industrial drives up to 1340 RPM.
Brand TB Woods
Model BK1901
$364.80 Each
Free Shipping orders over $100
#347436
BK1201
TB Woods BK1201 single-groove FHP V-belt sheave with 11.75" outside diameter and 1" finished bore with keyway. Compatible with B, 5L, A, and 4L cross-section belts. Cast-iron construction, balanced for industrial drives up to 2130 RPM.
Brand TB Woods
Model BK1201
$177.32 Each
Free Shipping orders over $100
#347487
2AK1041
TB Woods 2AK1041 two-groove FHP V-belt sheave with 10.4" outside diameter and 1" finished bore with keyway. Compatible with A, 4L, and 3L cross-section belts. Cast-iron construction, balanced for industrial drives up to 2440 RPM.
Brand TB Woods
Model 2AK1041
$226.19 Each
Free Shipping orders over $100
#705993
MFAL84X3/4
Dodge MFAL84X3/4 fixed bore V-belt sheave, 7.93" pitch diameter, 3/4" bore, A/4L section. Gray cast iron construction for general purpose applications. 2.2 lb weight for reliable performance in light to medium duty industrial drives.
Brand Dodge
Model MFAL84X3/4
$46.65 Each
Free shipping
#706030
2MA120X7/8
Dodge 2MA120X7/8 light duty fixed bore V-belt sheave with 2 grooves for A/4L section belts. Features 11.75" pitch diameter and 7/8" straight bore design for belt drive applications requiring 12.8 lb capacity.
Brand Dodge
Model 2MA120X7/8
$156.49 Each
Free Shipping orders over $100
#706137
2MA43X1
Dodge 2MA43X1 fixed bore V-belt sheave features 2 grooves for A section belts, 4" pitch diameter, and 1" finished bore. Light duty cast iron construction for standard industrial applications. 3.25 lb weight.
Brand Dodge
Model 2MA43X1
$73.63 Each
Free shipping
#706591
MA35X5/8
Dodge MA35X5/8 light duty fixed bore V-belt sheave with 1 groove, A/4L section, 3.2" pitch diameter, and 5/8" bore. Gray cast iron construction for general purpose industrial applications.
Brand Dodge
Model MA35X5/8
$27.95 Each
Free shipping
#2029782
AK74-1
Timken Belts (Carlisle) AK74-1 V-Belt Sheave. 1-groove A-section V-belt sheave. OD: 7.4". Bore: 1". Formerly sold as Carlisle. Manufactured to ISO 9001:2015 standards.
Brand Timken Belts
Model AK74-1
$87.09 Each
Free shipping
#2029783
AK74-3/4
Timken Belts (Carlisle) AK74-3/4 V-Belt Sheave. 1-groove A-section V-belt sheave. OD: 7.4". Bore: 3/4". Formerly sold as Carlisle. Manufactured to ISO 9001:2015 standards.
Brand Timken Belts
Model AK74-3/4
$87.09 Each
Free shipping
#2030146
2AK64-1-3/8
Timken Belts (Carlisle) 2AK64-1-3/8 V-Belt Sheave. 2-groove A-section V-belt sheave. OD: 6.4". Bore: 1 3/8". Formerly sold as Carlisle. Manufactured to ISO 9001:2015 standards.
Brand Timken Belts
Model 2AK64-1-3/8
$152.88 Each
Free Shipping orders over $100
#2276260
1026541
Browning AK46X3/4 (1026541) 1-groove cast iron FHP A-section sheave with a 4.6-inch pitch diameter and a 3/4-inch finished bore (19.05 mm). Includes keyway and set screw for secure shaft mounting. Statically balanced for low vibration; used in HVAC fan drives, blowers, and general-purpose belt drives.
Brand Browning
Model 1026541
$60.94 Each
Free shipping
#2276282
1026715
Browning AK54X3/4 (1026715) single-groove cast iron FHP sheave with a 5.4-inch pitch diameter and a 3/4-inch finished bore (19.05 mm). Designed for fractional-horsepower drives using A-section V-belts. Statically balanced for low vibration; includes keyway and set screw. Used in fan drives, blower drives, and general HVAC and industrial belt drives.
Brand Browning
Model 1026715
$63.58 Each
Free shipping
#2276312
1027028
Browning AK64X1 (1027028) single-groove cast iron FHP A-section sheave with a 6.4-inch pitch diameter and a 1-inch finished bore (25.40 mm). Includes a keyway and set screw for secure shaft mounting. Statically balanced for low vibration in HVAC fan drives, blowers, and general-purpose belt drives.
Brand Browning
Model 1027028
$65.38 Each
Free shipping
#2276363
1027408
Browning AK99X1 (1027408) single-groove cast iron FHP A-section sheave with a 9.9-inch pitch diameter and a 1-inch finished bore with keyway and setscrew. Designed for fractional-horsepower belt drives in HVAC and general industrial applications. Genuine Browning component from Regal Rexnord.
Brand Browning
Model 1027408
$160.85 Each
Free Shipping orders over $100
#2276372
1029263
Browning BK100X1 single-groove cast iron FHP sheave with a 10-inch pitch diameter and a 1-inch finished bore (25.40 mm). Designed for fractional-horsepower drives using B-section V-belts, it features a precision-machined groove and is statically balanced for low vibration. Suitable for fan drives, blower drives, and general HVAC and industrial belt drives.
Brand Browning
Model 1029263
$176.86 Each
Free Shipping orders over $100
#2276403
1029610
Browning BK160X 1 3/16 single-groove cast iron FHP sheave for B-section belts with a 16-inch pitch diameter and a 1-3/16-inch finished bore (30.16 mm). Includes keyway and set screw for secure shaft mounting. Statically balanced for low-vibration operation in fractional-horsepower drives. Used in fan, blower, and pump drives for HVAC and general industrial applications.
Brand Browning
Model 1029610
$224.11 Each
Free Shipping orders over $100
#2276495
1028695
Browning BK60X1 single-groove cast iron FHP sheave for B-section V-belts with a 6-inch pitch diameter and a 1-inch finished bore with keyway and set screw. This fractional-horsepower sheave is statically balanced for smooth operation in HVAC fan drives, blowers, and general-purpose belt drives. Genuine Browning component from Regal Rexnord.
Brand Browning
Model 1028695
$83.69 Each
Free shipping
#2276704
3195393
Browning 2AK51X 1 3/8 2-groove cast iron FHP sheave with a 1.375-inch finished bore and keyway. Designed for A-section V-belts, it has a 4.95-inch outside diameter and is statically balanced for low vibration. This sheave is used in fractional-horsepower drives for HVAC and general industrial belt applications.
Brand Browning
Model 3195393
$271.55 Each
Free Shipping orders over $100
#2276819
1033471
Browning 2BK45X1 1033471 2-groove cast iron FHP sheave with a 1-inch finished bore, keyway, and set screw. It has a 4.25-inch outside diameter and accepts A or B section V-belts. This sheave is statically balanced for low vibration and used in fractional-horsepower drives for HVAC and general industrial applications.
Brand Browning
Model 1033471
$229.46 Each
Free Shipping orders over $100
#2276858
1033935
Browning 2BK80X 1 3/16 (alt. 1033935) is a 2-groove cast iron FHP sheave with a 1-3/16-inch finished bore, keyway, and set screw. It has a 7.75-inch outside diameter and accepts A or B section V-belts. This sheave is statically balanced for low vibration and used in fractional-horsepower drives for HVAC and general industrial applications.
Brand Browning
Model 1033935
$220.51 Each
Free Shipping orders over $100
#2334791
2AK26-7/8
MasterDrive 2AK26-7/8 A section two-groove V-belt sheave with 2.60-inch outside diameter. Cast iron construction for industrial belt drive applications. Designed for use with A-section V-belts in HVAC, agricultural, and general power transmission systems.
Brand MasterDrive
Model 2AK26-7/8
$40.84 Each
Free shipping
#2334792
2AK27-1
MasterDrive 2AK27-1 is a 2-groove A section V-belt sheave designed for industrial belt drive applications. Constructed from cast iron, this sheave provides reliable power transmission in HVAC and general machinery drives.
Brand MasterDrive
Model 2AK27-1
$43.52 Each
Free shipping
#2334818
2AK32-7/8
MasterDrive 2AK32-7/8 is a 2-groove A section V-belt sheave with a 3.20-inch outside diameter. This sheave is constructed from cast iron for durability in industrial belt drive applications. It is designed for use with A section V-belts and provides reliable power transmission.
Brand MasterDrive
Model 2AK32-7/8
$57.70 Each
Free shipping
#2335088
2BK27-1
MasterDrive 2BK27-1 is a B section 2-groove V-belt sheave with a 2.70-inch outside diameter. Constructed from cast iron, this sheave is designed for industrial belt drive applications requiring reliable power transmission. The 2BK27-1 offers durable performance in HVAC and general machinery drives.
Brand MasterDrive
Model 2BK27-1
$50.40 Each
Free shipping
#2335120
2BK34-1
MasterDrive 2BK34-1 is a B section 2-groove V-belt sheave with a 3.40-inch outside diameter. Constructed from cast iron, this sheave is designed for industrial belt drive applications requiring reliable power transmission. The 2BK34-1 offers durable performance in HVAC and general machinery drives.
Brand MasterDrive
Model 2BK34-1
$62.74 Each
Free shipping
#2335124
2BK34-3/4
MasterDrive 2BK34-3/4 is a B-section 2-groove V-belt sheave with a 3.4-inch pitch diameter. Constructed from cast iron, it is designed for industrial belt drive applications requiring reliable power transmission.
Brand MasterDrive
Model 2BK34-3/4
$62.74 Each
Free shipping
#2338270
AL74-1
MasterDrive AL74-1 is a light duty sheave designed for fractional horsepower applications. This single-groove sheave accommodates A section V-belts and is constructed from cast iron for durability. Suitable for HVAC and general industrial belt drives.
Brand MasterDrive
Model AL74-1
$33.54 Each
Free shipping
#2338678
BK30-1
MasterDrive BK30-1 FHP V-belt sheave with B section, single groove, and 3-inch pitch diameter. Unbushed cast iron construction for fractional horsepower belt drive applications in HVAC, agricultural, and light industrial equipment.
Brand MasterDrive
Model BK30-1
$24.20 Each
Free shipping
#2338760
BK52-1/2
MasterDrive BK52-1/2 FHP V-Belt Sheave with B section, single groove, and 5.20-inch pitch diameter. Unbushed design for direct shaft mounting. Cast iron construction suitable for fractional horsepower industrial belt drive applications.
Brand MasterDrive
Model BK52-1/2
$38.44 Each
Free shipping