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All Product Types > INDUSTRIAL MOTION PRODUCTS > Couplings & Power Transmission Parts Catalog > Universal Joints > DD & DDX Types Universal Joints > DD Type without Keyway - Inch (Imperial) Bores > Part Number 68514417078  
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Part Number 68514417078, DD Type without Keyway - Inch (Imperial) Bores


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: Imperial Metric Both

Notes  · Specifications  · Dimensional Data  · Performance Data

Notes

Disclaimer
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 
  • 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 
DD2B-UJ-1/4X1/4-NKW NSS BE

Bore A & B
1/4 in

Type
Universal Joints - DD Type

Material
Steel

Style
Bored

Weight
0.17 lb

Color
Metallic

Bore Type
Finished Bore

Connection Type A x B 
1/4 x 1/4 in


Dimensional Data

Size
DD2B

Set Screw Size
No Setscrew

Keyway A & B (W x D)
No Keyway

Outside Diameter
0.500 in

Overall Length
4.00 in

Bore Depth (Dimension C)
0.620 in

Max. Bore - No Keyway (Dim. ID1 & ID2)
0.380 in
9 mm

Main Pin Height (Dimension E)
1.000 in

Dimension F (Standard)
2.000 in
50.80 mm

Dimension F (Minimum)
1.380 in
35.05 mm

Cubic inches
1.00000 in³


Performance Data

Operating Temperature Range
-20 to 212 ºF

Static Breaking Torque
378.00 in·lb

Max. Speed
1750.00 rpm

Static Breaking Torque
378.00 in-lb

Max. Angle Offset
25.00 º


 MORE IMAGES 

·  Correct/Incorrect Assembly



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