The Timken Company - Needle Bearing Type with Keyway - Inch (Imperial) Bores

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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

Items	68514444041 Needle Bearing Type with Keyway - Inch (Imperial) Bores	68514449739 Needle Bearing Type with Keyway - Inch (Imperial) Bores	68514476319 Needle Bearing Type with Keyway - Inch (Imperial) Bores	68514446728 Needle Bearing Type with Keyway - Inch (Imperial) Bores	68514450331 Needle Bearing Type with Keyway - Inch (Imperial) Bores
Description	N/A NB8B-UJ-5/8X5/8-NSS BE	N/A NB8B-UJ-5/8X5/8	N/A NB8B-UJ-1/2X3/4	N/A NB10B-UJ-3/4X3/4	N/A NB10B-UJ-3/4X3/4-2SS90BE
Bore A & B	N/A 5/8 in	N/A 5/8 in	N/A 1/2 & 3/4 in	N/A 3/4 in	N/A 3/4 in
Type	N/A Universal Joints - NB Type
Size	N/A NB8B	N/A NB8B	N/A NB8B	N/A NB10B	N/A NB10B
Material	N/A Steel
Set Screw Size	N/A No Setscrew	N/A 1/4-20	N/A 1/4-20	N/A 1/4-20	N/A 1/4-20 (2 each side)
Keyway A & B (W x D)	N/A 3/16 x 3/32 in	N/A 3/16 x 3/32 in	N/A 1/8 x 1/16 & 3/16 x 3/32 in	N/A 3/16 x 3/32 in	N/A 3/16 x 3/32 in
Style	N/A Bored
Outside Diameter	N/A 1.250 in	N/A 1.250 in	N/A 1.250 in	N/A 1.500 in	N/A 1.500 in
Overall Length	N/A 3.75 in	N/A 3.75 in	N/A 3.75 in	N/A 4.25 in	N/A 4.25 in
Weight	N/A 0.90 lb	N/A 0.90 lb	N/A 1.74 lb	N/A 1.46 lb	N/A 1.47 lb
Color	N/A Metallic
Operating Temperature Range	N/A -30 to 212 ºF
Static Breaking Torque	N/A 2500.00 in·lb	N/A 2500.00 in·lb	N/A 2500.00 in·lb	N/A 4400.00 in·lb	N/A 4400.00 in·lb
Bore Depth (Dimension C)	N/A 1.060 in	N/A 1.060 in	N/A 1.060 in	N/A 1.180 in	N/A 1.180 in
Bore Type	N/A Finished Bore
Max. Bore (Dimensions ID1/ID2)	N/A 0.750 in18.00 mm	N/A 0.750 in18.00 mm	N/A 0.750 in18.00 mm	N/A 0.880 in21.00 mm	N/A 0.880 in21.00 mm
Max. Speed	N/A 6000 rpm
Static Breaking Torque	N/A 2500.00 in-lb	N/A 2500.00 in-lb	N/A 2500.00 in-lb	N/A 4400.00 in-lb	N/A 4400.00 in-lb
Main Pin Height (Dimension E)	N/A 1.880 in	N/A 1.880 in	N/A 1.880 in	N/A 2.12 in	N/A 2.12 in
Max. Angle Offset	N/A 25.00 º
Cubic inches	N/A 5.85938 in³	N/A 5.85938 in³	N/A 5.85938 in³	N/A 9.56250 in³	N/A 9.56250 in³