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D Type Universal Joints incorporate a standard pin and block design, and are ideal for applications with angles up to 25° and speeds of up to 1,750 RPM. Boot retaining grooves are standard.

For optimal wear and extended life, lubrication and boots are required. (Boots are available for purchase separately.)

Description Abbreviations: KW = Keyway, SS = Setscrew, BE = Both Ends, PH = Pin Hole, NSS or N/SS = No Setscrew, NKW or N/KW = No Keyway, SQ = Square Bore, HEX = Hex Bore, W/UP BT = with upper boot.
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 a recommended operating torque.
  • Square and hex bores are measured across the flats.
  • Operation of all universal joints is determined by the angle/speed combinations of the application. Consult Lovejoy Engineering for specific limitations and recommendations.
  • Applications that fall outside the limitations of these tables should be referred to Lovejoy Engineering for assistance.

Specifications

Description 

 N/A D4B-UJ-1/2X1/2-NKW NSS BE

Material

 N/A Steel

Type

 N/A Universal Joints - D Type

Weight

 N/A 0.18 lb

Style

 N/A Bored

Color

 N/A Metallic

Connection Type A x B 

 N/A 1/2 x 1/2 in

Dimensional Data

Bore A & B

 N/A 1/2 in

Size

 N/A D4B

Keyway A & B (W x D)

 N/A No Keyway

Set Screw Size

 N/A No Setscrew

Outside Diameter

 N/A 0.750 in

Overall Length

 N/A 2.680 in

Bore Depth (Dimension C)

 N/A 0.880 in

Max. Bore (Dimensions ID1/ID2)

 N/A 0.620 in15.00 mm

Main Pin Height (Dimension E)

 N/A 1.34 in

Cubic inches

 N/A 1.50750 in³

Performance Data

Operating Temperature Range

 N/A -30 to 212 ºF

Max. Speed

 N/A 1750.00 rpm

Static Breaking Torque

 N/A 768.00 in-lb

Max. Angle Offset

 N/A 25.00 º

Features

Features 

 N/A
  • Industry standard
  • Stainless steel and needle bearing available
  • 13 sizes
  • Pin & Block design
  • Boot retaining grooves standard
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