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
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
Request Information Add to CAD Cart
Unit of Measure
Items
Universal Solid Joints w/ Double Joint Arrangement - Imperial

DD Type - Special Bores
Universal Solid Joints w/ Double Joint Arrangement - Imperial

DD Type - Special Bores
Description  N/A DD4B-UJ-3/8SQX3/8-NSS LH NKW RH N/A DD6B-UJ-M8THRDXM8THRD-OD OAL=6.85
Bore A & B N/A 3/8 Square & 3/8 Round in N/A M8 Thread in
Type N/A Universal Joints - DD Type
Bore Type N/A Finished Bore
Size N/A DD4B N/A DD6B
Material N/A Steel
Set Screw Size N/A 8-32 (round end only) N/A No Setscrew
Keyway A & B (W x D) N/A No Keyway
Style N/A Bored
Outside Diameter N/A 0.750 in N/A 1.000 in
Overall Length N/A 5.380 in N/A 6.850 in
Color N/A Metallic
Normal Temperature Range N/A -20 to 212 ºF
Static Breaking Torque N/A 768.00 in·lb N/A 1560.00 in·lb
Bore Depth (Dimension C) N/A 0.880 in N/A 1.000 in
Length to Center N/A 1.340 in N/A 1.680 in
Max. Speed N/A 1750.00 rpm
Static Breaking Torque N/A 768.00 in-lb N/A 1560.00 in-lb
Max. Angle Offset N/A 25.00 º
Cubic inches N/A 3.02625 in³ N/A 6.85000 in³
Weight N/A 0.50 lb N/A 1.10 lb