Menu
Discover the New “My Dashboard” Experience

Join Eric Stasiowski, manager – online marketing & ecommerce, to see how you can save key items like documents, bearings, and distributor locations directly to your account.

View Video
Analyze Bearing Performance in an Application with Timken ® Syber ® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

Learn More
Simplified Gear Force Analysis

Alex Waye, Timken Application Engineer, shows you how to instantly compute tangential, radial, and axial forces for better design decisions.

View Video
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information
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.

Notes 

 N/A
  • Static Breaking Torque is not recommended operating torque.
  • Square and hex bore measured across the flats.
  • Bores other than shown are available at additional charge.
  • Shorter centers upon request.

Specifications

Description 

 N/A DD7B-UJ-9/16X9/16-NKW NSS BE

Bore A & B

 N/A 9/16 in

Type

 N/A Universal Joints - DD Type

Material

 N/A Steel

Style

 N/A Bored

Weight

 N/A 1.53 lb

Color

 N/A Metallic

Bore Type

 N/A Finished Bore

Connection Type A x B 

 N/A 9/16 x 9/16 in

Dimensional Data

Size

 N/A DD7B

Set Screw Size

 N/A No Setscrew

Keyway A & B (W x D)

 N/A No Keyway

Outside Diameter

 N/A 1.120 in

Overall Length

 N/A 7 in

Bore Depth (Dimension C)

 N/A 1.000 in

Max. Bore - No Keyway (Dim. ID1 & ID2)

 N/A 0.880 in22.00 mm

Main Pin Height (Dimension E)

 N/A 1.750 in

Dimension F (Standard)

 N/A 3.500 in88.90 mm

Dimension F (Minimum)

 N/A 2.500 in63.50 mm

Cubic inches

 N/A 8.78080 in³

Performance Data

Operating Temperature Range

 N/A -20 to 212 ºF

Static Breaking Torque

 N/A 2880.00 in·lb

Max. Speed

 N/A 1750.00 rpm

Static Breaking Torque

 N/A 2880.00 in-lb

Max. Angle Offset

 N/A 25.00 º
By clicking Submit, you consent to the personal information you provide being used in the manner as described in our Privacy Notice, including access to that information by Timken personnel who may be located outside your home country. In addition, you agree that the CAD drawings are for your personal, one-time use only, and that you will not modify or create any compilation or derivative work using the CAD drawings or distribute or display the CAD drawings on any website or other media.