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 #

Description 

Bore Size   

Keyway Size (W x D)

Dimension HD

Overall Length

Max. Torque

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68514476419 N/A U37S CPLG 1/4 KWX3/8 NKWNSS PH N/A 1/4 x 3/8 in N/A 1/16 x 1/32 & Puller Hole in N/A 0.860 in21.84 mm N/A 2.060 in52.32 mm N/A 39.00 in·lb
68514413570 N/A U125S CPLG 1-1/4X1-1/4 1/4KW N/A 1 1/4 x 1 1/4 in N/A 1/4 x 1/8 in N/A 2.170 in55.12 mm N/A 3.75 in95.25 mm N/A 755 in·lb
68514444113 N/A U125S CPLG 1"X1" 1/4X1/8KW BE N/A 1 x 1 in N/A 1/4 x 1/8 in N/A 2.170 in55.12 mm N/A 3.75 in95.25 mm N/A 755 in·lb
68514444584 N/A U125S CPLG 1"X1-1/4 1/4KW BE N/A 1 x 1 1/4 in N/A 1/4 x 1/8 in N/A 2.170 in55.12 mm N/A 3.75 in95.25 mm N/A 755 in·lb
68514413493 N/A U100S CPLG 1"X1" 1/4X1/8 KW N/A 1 x 1 in N/A 1/4 x 1/8 in N/A 2.11 in53.59 mm N/A 3.560 in90.42 mm N/A 565 in·lb
68514476424 N/A U137S CPLG 7/8 *KWX1-3/8 KW N/A 7/8 x 1 3/8 in N/A 1/4 x 1/8 & 5/16 x 5/32 in N/A 2.54 in64.52 mm N/A 4.120 in104.65 mm N/A 1260 in·lb
68514447442 N/A U62S CPLG 1/2X1/2 1/8KW BE N/A 1/2 x 1/2 in N/A 1/8 x 1/16 in N/A 1.420 in36.07 mm N/A 2.280 in57.91 mm N/A 126.00 in·lb
68514426098 N/A U50S CPLG 1/2X1/2 1/8X1/16KW N/A 1/2 x 1/2 in N/A 1/8 x 1/16 in N/A 1.040 in26.42 mm N/A 1.820 in46.23 mm N/A 82 in·lb
68514445477 N/A U62S CPLG 1/2X5/8 W/KW BE N/A 1/2 x 5/8 in N/A 1/8 x 1/16 & 3/16 x 3/32 in N/A 1.420 in36.07 mm N/A 2.280 in57.91 mm N/A 126.00 in·lb
68514413300 N/A U62S CPLG 5/8X5/8 3/16X3/32K N/A 5/8 x 5/8 in N/A 3/16 x 3/32 in N/A 1.420 in36.07 mm N/A 2.280 in57.91 mm N/A 126.00 in·lb
68514413384 N/A U75S CPLG 3/4X3/4 3/16X3/32K N/A 3/4 x 3/4 in N/A 3/16 x 3/32 in N/A 1.420 in36.07 mm N/A 2.720 in69.09 mm N/A 175 in·lb
68514426100 N/A U75S CPLG 5/8X5/8 3/16KW BE N/A 5/8 x 5/8 in N/A 3/16 x 3/32 in N/A 1.420 in36.07 mm N/A 2.720 in69.09 mm N/A 175 in·lb
68514444111 N/A U75S CPLG 5/8X3/4 3/16KW BE N/A 5/8 x 3/4 in N/A 3/16 x 3/32 in N/A 1.420 in36.07 mm N/A 2.720 in69.09 mm N/A 175 in·lb
68514413426 N/A U87S CPLG 7/8X7/8 3/16X3/32K N/A 7/8 x 7/8 in N/A 3/16 x 3/32 in N/A 1.730 in43.94 mm N/A 2.910 in73.91 mm N/A 346 in·lb
68514426103 N/A U87S CPLG 5/8X5/8 3/16X3/32KW N/A 5/8 x 5/8 in N/A 3/16 x 3/32 in N/A 1.730 in43.94 mm N/A 2.910 in73.91 mm N/A 346 in·lb
68514426104 N/A U87S CPLG 3/4X3/4 3/16KW BE N/A 3/4 x 3/4 in N/A 3/16 x 3/32 in N/A 1.730 in43.94 mm N/A 2.910 in73.91 mm N/A 346 in·lb
68514445076 N/A U87S CPLG 5/8X3/4 3/16KW BE N/A 5/8 x 3/4 in N/A 3/16 x 3/32 in N/A 1.730 in43.94 mm N/A 2.910 in73.91 mm N/A 346 in·lb
68514445248 N/A U87S CPLG 5/8X7/8 3/16KW BE N/A 5/8 x 7/8 in N/A 3/16 x 3/32 in N/A 1.730 in43.94 mm N/A 2.910 in73.91 mm N/A 346 in·lb
68514445193 N/A U125S CPLG 5/8X5/8 3/16KWBE N/A 5/8 x 5/8 in N/A 3/16 x 3/32 in N/A 2.170 in55.12 mm N/A 3.75 in95.25 mm N/A 755 in·lb
68514445717 N/A U137S CPLG 7/8X7/8 3/16KWBE N/A 7/8 x 7/8 in N/A 3/16 x 3/32 in N/A 2.54 in64.52 mm N/A 4.120 in104.65 mm N/A 1260 in·lb
68514446309 N/A U100S CPLG 5/8X1" STD KW BE N/A 5/8 x 1 in N/A 3/16 x 3/32 & 1/4 x 1/8 in N/A 2.11 in53.59 mm N/A 3.560 in90.42 mm N/A 565 in·lb
68514426107 N/A U150S CPLG 1-1/2X1-1/2 3/8KW N/A 1 1/2 x 1 1/2 in N/A 3/8 x 3/16 in N/A 2.980 in75.69 mm N/A 5.00 in127.00 mm N/A 1890 in·lb
68514413632 N/A U137S CPLG 1-3/8X1-3/8 5/16KW N/A 1 3/8 x 1 3/8 in N/A 5/16 x 5/32 in N/A 2.54 in64.52 mm N/A 4.120 in104.65 mm N/A 1260 in·lb
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