Boston Gear - Jaw and Wrap Type Elastomer
Discover a wide array of shaft couplings, chains and sprockets, belts and sheaves, and drive components.
Complete jaw couplings join and transmit torque between two shafts. They consist of two metal hubs and an elastomeric insert that interlock. The hubs prevent backlash, while the insert transmits power between the two hubs, accommodates misalignment, and absorbs and reduces vibration. If the insert fails, the hubs interlock and continue to transmit mechanical power. Complete jaw couplings are ideal for high-speed applications that require frequent stops and vibration damping.
Photos may not represent actual items. Refer to name and product specs for all details.
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Brand: Boston Gear
Boston Gear BF18 1 1/4-1 1/4
Bost-Flex Shaft Coupling, Size 18, 300 lb-in Max. Torque
MI ITEM #00817367
MFR #BF18 1 1/4-1 1/4
Factory Order
$233.69/each
Boston Gear FC20 5/8
Steel FC Coupling, Size 20, 5/8 in. Bore
MI ITEM #00816182
MFR #FC20 5/8
In stock
$163.17/each
Boston Gear BF10 1/2-3/4
Bost-Flex Shaft Coupling, Size 10, 72 lb-in Max. Torque
MI ITEM #00817199
MFR #BF10 1/2-3/4
Factory Order
$93.93/each
Boston Gear XFCBB12
Coupling Insert, FC Series, Bost-Bronz
MI ITEM #00816809
MFR #XFCBB12
In stock
$75.90/each
Boston Gear FC12-5/8
Jaw Coupling Hub - Cplg Size: FC12, Straight Jaw, 0.625 in Bore, Finished w/ Keyway, Steel
MI ITEM #02041157
MFR #FC12-5/8
In stock
$99.56/each
Boston Gear FC12 3/8
Steel FC Coupling, Size 12, 3/8 in. Bore
MI ITEM #00816046
MFR #FC12 3/8
In stock
$95.90/each
Boston Gear FC15 3/4
Steel FC Coupling, Size 15, 3/4 in. Bore
MI ITEM #00816149
MFR #FC15 3/4
In stock
$117.26/each
Boston Gear FC20 1/2
Steel FC Coupling, Size 20, 1/2 in. Bore
MI ITEM #00816173
MFR #FC20 1/2
Factory Order
$166.63/each
Boston Gear FA5 3/16X3/16
Boston Gear® FA5 3/16-3/16, Jaw Coupling, Bore: Finished with Keyway 3/16" x 3/16", Coupling Size: FA5, Steel Hub
MI ITEM #00815565
MFR #FA5 3/16X3/16
Factory Order
$136.78/each
Boston Gear FC25 1
Steel FC Coupling, Size 25, 1 in. Bore
MI ITEM #00816313
MFR #FC25 1
In stock
$254.27/each
Boston Gear FC25 3/4
Steel FC Coupling, Size 25, 3/4 in. Bore
MI ITEM #00816275
MFR #FC25 3/4
Factory Order
$254.27/each
Boston Gear FC30 1
Steel FC Coupling, Size 30, 1 in. Bore
MI ITEM #00816377
MFR #FC30 1
Factory Order
$355.14/each
Boston Gear FC30 1 1/8
Steel FC Coupling, Size 30, 1-1/8 in. Bore
MI ITEM #00816402
MFR #FC30 1 1/8
In stock
$355.14/each
Boston Gear XFCBB30
Coupling Insert, FC Series, Bost-Bronz
MI ITEM #00816876
MFR #XFCBB30
In stock
$154.30/each
Boston Gear FC12 7/16
Steel FC Coupling, Size 12, 7/16 in. Bore
MI ITEM #00816072
MFR #FC12 7/16
Factory Order
$98.07/each
Boston Gear XFCBB20
Coupling Insert, FC Series, Bost-Bronz
MI ITEM #00816842
MFR #XFCBB20
In stock
$102.87/each
Boston Gear XBF10 MACHINE CPLG INSERT 11724
Jaw Coupling Replacement Insert - 10 Cplg Size, Urethane
MI ITEM #00817456
MFR #XBF10 MACHINE CPLG INSERT 11724
In stock
$31.19/each
Boston Gear BF13 7/8
Jaw Coupling Hub - Cplg Size: BF13, Straight Jaw, 0.875 in Bore, Finished w/ Keyway, Steel
MI ITEM #03140857
MFR #BF13 7/8
In stock
$71.91/each
Boston Gear BG11-4-10-10
Boston Gear® BG11-4-10-10, Jaw Coupling, Bore: Finished with Keyway 5/8" x 5/8", Coupling Size: BG11-4, O.D. 1.3750"
MI ITEM #00818441
MFR #BG11-4-10-10
Factory Order
$244.80/each
Boston Gear BG11-2-6-6
Boston Gear® BG11-2-6-6, Jaw Coupling, Bore: Finished with Keyway 3/8" x 3/8", Coupling Size: BG11-2, Jaw Type: Straight
MI ITEM #00828900
MFR #BG11-2-6-6
In stock
$229.02/each
Boston Gear BG11-5-10-10
Boston Gear® BG11-5-10-10, Jaw Coupling, Bore: Finished with Keyway 5/8" x 5/8", Coupling Size: BG11-5, O.D. 1.6250"
MI ITEM #00829132
MFR #BG11-5-10-10
Factory Order
$280.07/each
Boston Gear BG47-4-4
Boston Gear® BG47-4-4, Jaw Coupling, Bore: Finished with Keyway 1/4" x 1/4", Coupling Size: BG47, Jaw Type: Straight
MI ITEM #00819510
MFR #BG47-4-4
Factory Order
$171.04/each
Boston Gear FC38 1 3/4
Steel FC Coupling, Size 38, 1-3/4 in. Bore
MI ITEM #00816566
MFR #FC38 1 3/4
In stock
$560.70/each
Boston Gear SSFC25 1 1/4
Stainless Steel FC Coupling, Size 25, 1-1/4 in. Bore
MI ITEM #06144410
MFR #SSFC25 1 1/4
Factory Order
$375.67/each
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