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Double Joint Arrangement
  • Designed with two Lovejoy D Type universal joints and a center connecting shaft
  • DD and DDX Type universal joints are tailored to your specific application requirements
  • This configuration compensates for both parallel misalignment and shaft separation
  • Round, hex, splined, or keyway bores are supplied per your requirements
  • Boot retaining grooves are standard. (Boots are available for purchase separately.)
  • Lubrication is required for optimal wear – boots and lubricant extend universal joint life
Unit of Measure

Notes

Disclaimer

 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.

Specifications

Description 

 N/A DD4B-UJ-3/8SQX3/8-NSS LH NKW RH

Type

 N/A Universal Joints - DD Type

Bore Type

 N/A Finished Bore

Material

 N/A Steel

Style

 N/A Bored

Color

 N/A Metallic

Weight

 N/A 0.50 lb

Dimensional Data

Bore A & B

 N/A 3/8 Square & 3/8 Round in

Size

 N/A DD4B

Set Screw Size

 N/A 8-32 (round end only)

Keyway A & B (W x D)

 N/A No Keyway

Outside Diameter

 N/A 0.750 in

Overall Length

 N/A 5.380 in

Bore Depth (Dimension C)

 N/A 0.880 in

Length to Center

 N/A 1.340 in

Cubic inches

 N/A 3.02625 in³

Performance Data

Normal Temperature Range

 N/A -20 to 212 ºF

Static Breaking Torque

 N/A 768.00 in·lb

Max. Speed

 N/A 1750.00 rpm

Static Breaking Torque

 N/A 768.00 in-lb

Max. Angle Offset

 N/A 25.00 º