DD Type without Keyway - Inch (Imperial) Bores On The Timken Company

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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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Bore Size (in)

Keyway Size

Part Number	Description	Bore A & B	Material	Set Screw Size	Keyway A & B (W x D)	Outside Diameter	Overall Length	Bore Depth	Static Breaking Torque	Main Pin Height (Dimension E)	CAD

68514417075	N/A DD1B-UJ-3/16X3/16-NKW NSS BE	N/A 3/16 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 0.380 in	N/A 3.50 in	N/A 0.560 in	N/A 110.00 in-lb	N/A 0.880 in	N/A
68514417078	N/A DD2B-UJ-1/4X1/4-NKW NSS BE	N/A 1/4 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 0.500 in	N/A 4.00 in	N/A 0.620 in	N/A 378.00 in-lb	N/A 1.000 in	N/A
68514417087	N/A DD3B-UJ-5/16X5/16-NKW NSS BE	N/A 5/16 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 0.620 in	N/A 4.500 in	N/A 0.680 in	N/A 540.00 in-lb	N/A 1.120 in	N/A
68514417094	N/A DD4B-UJ-3/8X3/8-NKW NSS BE	N/A 3/8 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 0.750 in	N/A 5.380 in	N/A 0.880 in	N/A 768.00 in-lb	N/A 1.34 in	N/A
68514417102	N/A DD5B-UJ-7/16X7/16-NKW NSS BE	N/A 7/16 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 0.880 in	N/A 6.000 in	N/A 0.880 in	N/A 1176.00 in-lb	N/A 1.500 in	N/A
68514476244	N/A DD5B-UJ-3/8X1/2-NKW NSS BE	N/A 3/8 & 1/2 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 0.880 in	N/A 6.000 in	N/A 1.000 in	N/A 1176.00 in-lb	N/A 1.500 in	N/A
68514417108	N/A DD6B-UJ-1/2X1/2-NKW NSS BE	N/A 1/2 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 1.000 in	N/A 6.750 in	N/A 1.000 in	N/A 1560.00 in-lb	N/A 1.680 in	N/A
68514417114	N/A DD7B-UJ-9/16X9/16-NKW NSS BE	N/A 9/16 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 1.120 in	N/A 7 in	N/A 1.000 in	N/A 2880.00 in-lb	N/A 1.750 in	N/A
68514417120	N/A DD8B-UJ-5/8X5/8-NKW NSS BE	N/A 5/8 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 1.250 in	N/A 7.500 in	N/A 1.060 in	N/A 5220.00 in-lb	N/A 1.880 in	N/A
68514417142	N/A DD10B-UJ-3/4X3/4-NKW NSS BE	N/A 3/4 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 1.500 in	N/A 8.500 in	N/A 1.180 in	N/A 7920.00 in-lb	N/A 2.12 in	N/A
68514417164	N/A DD11B-UJ-7/8X7/8-NKW NSS BE	N/A 7/8 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 1.75 in	N/A 10.000 in	N/A 1.380 in	N/A 10680.00 in-lb	N/A 2.5 in	N/A
68514417177	N/A DD12B-UJ-1"X1"-NKW NSS BE	N/A 1 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 2.000 in	N/A 10.880 in	N/A 1.500 in	N/A 15600.00 in-lb	N/A 2.72 in	N/A
68514417207	N/A DD13B-UJ-1-1/4X1-1/4-NKW NSS BE	N/A 1-1/4 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 2.500 in	N/A 14.000 in	N/A 2.000 in	N/A 33120.00 in-lb	N/A 3.5 in	N/A
68514417224	N/A DD14B-UJ-1-1/2X1-1/2-NKW NSS BE	N/A 1-1/2 in	N/A Steel	N/A No Setscrew	N/A No Keyway	N/A 3.000 in	N/A 18.120 in	N/A 2.750 in	N/A 65400.00 in-lb	N/A 4.53 in	N/A

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