The Timken Company - DD Type - Special Bores - Compare Items

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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

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Unit of Measure

Items	68514476407 DD Type - Special Bores	68514476277 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