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Needle Bearing Type with Keyway - Inch (Imperial) Bores
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INDUSTRIAL MOTION PRODUCTS
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Couplings & Power Transmission Parts Catalog
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Universal Joints
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Needle Bearing Type Universal Joints
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Needle Bearing Type with Keyway - Inch (Imperial) Bores
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Part Number 68514476319
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Part Number 68514476319, 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
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Unit of Measure:
Imperial
Metric
Both
Specifications
·
Dimensional Data
·
Performance Data
·
Notes
Specifications
Description
NB8B-UJ-1/2X3/4
Type
Universal Joints - NB Type
Material
Steel
Style
Bored
Weight
1.74
lb
Color
Metallic
Bore Type
Finished Bore
Dimensional Data
Bore A & B
1/2 & 3/4
in
Size
NB8B
Set Screw Size
1/4-20
Keyway A & B (W x D)
1/8 x 1/16 & 3/16 x 3/32
in
Outside Diameter
1.250
in
Overall Length
3.75
in
Bore Depth (Dimension C)
1.060
in
Max. Bore (Dimensions ID1/ID2)
0.750
in
18.00
mm
Main Pin Height (Dimension E)
1.880
in
Cubic inches
5.85938
in³
Performance Data
Operating Temperature Range
-30 to 212
ºF
Static Breaking Torque
2500.00
in·lb
Max. Speed
6000
rpm
Static Breaking Torque
2500.00
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
VIEW CAD DRAWING
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3D
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