The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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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
NB Type Universal Joint
Needle Bearing Type Universal Solid Joints - Imperial-2
Unit of Measure
Items NB Type Universal Joint
68514444041
Needle Bearing Type with Keyway - Inch (Imperial) Bores 		NB Type Universal Joint
68514449739
Needle Bearing Type with Keyway - Inch (Imperial) Bores 		NB Type Universal Joint
68514476319
Needle Bearing Type with Keyway - Inch (Imperial) Bores 		NB Type Universal Joint
68514446728
Needle Bearing Type with Keyway - Inch (Imperial) Bores 		NB Type Universal Joint
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