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U Type with Keyway, Regular Version - Metric Bores

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U Type Shaft-to-Shaft
    The U Type is the basis for all Uniflex couplings. It is a shaft-to-shaft flexible coupling with a simple one piece design, making it ideal for indexing, robotic or positioning applications. The U Type consists of a triple-wound flexible steel spring brazed to a steel hub at each end. This all steel design ensures optimum equipment protection in severe environments and/or high temperature applications. Regular and short versions are available for most sizes to accommodate different overall length requirements. Special hub or bore modifications are also possible. These units can be supplied with either pin holes or with keyways and set screws. Lovejoy does not recommend the reboring of uniflex couplings by customers due to potential damage to the brazed joint.
    This is a durable one-piece flexible coupling for general purpose shaft-to- shaft applications. It is the basis for all Uniflex coupling types.


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Item #


Bore Size   

Keyway Size

Dimension HD

Overall Length

Max. Torque

68514476375 U62R CPLG 8MM NKWX14MM KW 8 x 14 mm No Keyway & 5 x 2.3 mm 1.420 in
2.720 in
126.00 in·lb
68514476253 U75R CPLG 12MMX1/2 KWBE 12 mm x 1/2 in mm 4 x 1.8 mm & 1/8 x 1/16 in 1.420 in
3.310 in
175 in·lb
68514476473 U87R CPLG 16MMX20MM KW BE 16 x 20 mm 5 x 2.3 mm & 6 x 2.8 mm 1.730 in
3.50 in
346 in·lb
68514476433 U125R CPLG 14MM X 3/4 KW BE 14 mm x 3/4 in mm 5 x 2.3 mm & 3/16 x 3/32 in 2.170 in
4.880 in
755 in·lb
  Results 1 - 4 of 4 1