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All Categories > Couplings & Power Transmission Parts Catalog > Universal Joints > Needle Bearing Type Universal Joints > Needle Bearing Type with Keyway - Inch (Imperial) Bores > Item # 68514444378  
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Item # 68514444378, Needle Bearing Type with Keyway - Inch (Imperial) Bores



Needle Bearing (NB) Type
  • Designed with high quality, pre-lubricated, and sealed needle bearings
  • Ideal for applications up to 25° of angular misalignment and speeds up to 6,000 RPM
  • Available in sizes: 6, 8, 10 and 12 (Other sizes are quantity dependent) with your choice of round, hex, splined, or keyway bores
  • Boot retaining grooves are standard. (Boots are available for purchase separately.) 
  • Lubrication is required for optimal wear – boots and lubricant extend universal joint life





Specifications  · Dimensional Data  · Performance Data  · Notes

Specifications

Description 

NB12B UJNT 1"X1" KW&SS BE

Type

Universal Joints - NB Type

Material

Steel

Style

Bored

Weight

3.10 lb

Color

Metallic

Bore Type

Finished Bore


Dimensional Data

Bore A & B

1 in

Size

NB12B

Set Screw Size

5/16-18

Keyway A & B (W x D)

1/4 x 1/8 in

Outside Diameter

2.000 in

Overall Length

5.440 in

Bore Depth (Dimension C)

1.500 in

Max. Bore (Dimensions ID1/ID2)

1.190 in
30.00
mm

Main Pin Height (Dimension E)

2.72 in

Cubic inches

21.76 in³


Performance Data

Operating Temperature Range

-30 to 212 ºF

Static Breaking Torque

10500.00 in·lb

Max. Speed

6000 rpm

Static Breaking Torque

10500.00 in-lb

Max. Angle Offset

25.00 º


Notes

Notes 

  • Static Breaking Torque is not recommended operating torque.
  • Square and hex bore measured across the flats.
  • Maximum operating angle for transmission of power is 25°.
  • For greater angular operation, use double universal joint. Join two universal joints back to back and connect with a short shaft. Attach universal joints to shaft by drilling and pinning.
  • Swing Diameter is the maximum diameter over bearings, clearance must be allowed.


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·  Running Curves


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