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HD Type Universal Joints incorporate induction hardened yoke ears for longer life using the standard pin and block design. It is ideal for applications with angles up to 25° and speeds of up to 1,750 RPM. Boot retaining grooves are standard. HD Type are available in round, hex, splined, or keyway bore.

For optimal wear and extended life, lubrication and boots are required. (Boots are available for purchase separately.) HDD and HDDX drive line assemblies can also be provided to increase life of your drive line or drive shaft.

Unit of Measure



N/A Lovejoy: CAD Models are accurate envelope dimensions only. Features such as bore size and keyway are not rendered or are only representative. Contact Lovejoy Technical Support or refer to product catalogs for details.


  • Static Breaking Torque is not a recommended operating torque.
  • Square and hex bores are measured across the flats.
  • Operation of all universal joints is determined by the angle/speed combinations of the application. Consult Lovejoy Engineering for specific limitations and recommendations.
  • Applications that fall outside the limitations of these tables should be referred to Lovejoy Engineering for assistance.



N/A HD14B UJNT 1-3/4 *7/16KW BE


N/A Universal Joints - HD Type


N/A Steel


N/A 11.35 lb


N/A Bored


N/A Metallic

Bore Type

N/A Finished Bore

Dimensional Data

Bore A & B

N/A 1-3/4 in



Set Screw Size

N/A No Setscrew

Keyway A & B (W x D)

N/A 7/16 x 7/32 in

Outside Diameter

N/A 3.000 in

Overall Length

N/A 9.060 in

Bore Depth (Dimension C)

N/A 2.750 in

Max. Bore (Dimensions ID1/ID2)

N/A 1.810 in48.00 mm

Main Pin Height (Dimension E)

N/A 4.53 in

Cubic inches

N/A 81.54000 in³

Performance Data

Operating Temperature Range

N/A -30 to 212 ºF

Static Breaking Torque

N/A 65400.00 in·lb

Max. Speed

N/A 1750.00 rpm

Static Breaking Torque

N/A 65400.00 in-lb

Max. Angle Offset

N/A 25.00 º



  • Industry standard
  • Stainless steel and needle bearing available
  • 13 sizes
  • Pin & Block design
  • Boot retaining grooves standard
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