Couplings

Lovejoy 68514416259 D3B UJNT

D3B UJNT 5/16X5/16 N/KW N/SS

Features

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

Couplings

Lovejoy 68514444600 D10B UJNT

D10B UJNT 3/4X3/4 KW&SS BE

Material	Steel
Type	Universal Joints - D Type
Weight	1.49 lb
Style	Bored
Color	Metallic
Connection Type A x B	3/4 x 3/4 in

Dimensional Data

Bore A & B	3/4 in
Size	D10B
Keyway A & B (W x D)	3/16 x 3/32 in
Set Screw Size	1/4-20
Outside Diameter	1.500 in
Overall Length	4.25 in
Bore Depth (Dimension C)	1.180 in
Max. Bore (Dimensions ID1/ID2)	0.880 in21.00 mm
Main Pin Height (Dimension E)	2.12 in
Cubic inches	9.56250 in³

Performance Data

Operating Temperature Range	-30 to 212 ºF
Max. Speed	1750.00 rpm
Static Breaking Torque	7920.00 in-lb
Max. Angle Offset	25.00 º

Features

Features

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

Couplings

Lovejoy 68514455190 D10B UJNT

D10B UJNT 5/8X5/8 KW&SS BE

Material	Steel
Type	Universal Joints - D Type
Weight	1.58 lb
Style	Bored
Color	Metallic
Connection Type A x B	5/8 x 5/8 in

Dimensional Data

Bore A & B	5/8 in
Size	D10B
Keyway A & B (W x D)	3/16 x 3/32 in
Set Screw Size	1/4-20
Outside Diameter	1.500 in
Overall Length	4.25 in
Bore Depth (Dimension C)	1.180 in
Max. Bore (Dimensions ID1/ID2)	0.880 in21.00 mm
Main Pin Height (Dimension E)	2.12 in
Cubic inches	9.56250 in³

Performance Data

Operating Temperature Range	-30 to 212 ºF
Max. Speed	1750.00 rpm
Static Breaking Torque	7920.00 in-lb
Max. Angle Offset	25.00 º

Features

Features

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

Couplings

Lovejoy 68514444286 D7B UJNT

D7B UJNT 5/8X5/8 KW&SS BE

Material	Steel
Type	Universal Joints - D Type
Weight	0.65 lb
Style	Bored
Color	Metallic
Connection Type A x B	5/8 x 5/8 in

Dimensional Data

Bore A & B	5/8 in
Size	D7B
Keyway A & B (W x D)	3/16 x 3/32 in
Set Screw Size	10-24
Outside Diameter	1.250 in
Overall Length	3.75 in
Bore Depth (Dimension C)	1.060 in
Max. Bore (Dimensions ID1/ID2)	0.750 in18.00 mm
Main Pin Height (Dimension E)	1.880 in
Cubic inches	5.85938 in³

Performance Data

Operating Temperature Range	-30 to 212 ºF
Max. Speed	1750.00 rpm
Static Breaking Torque	2880.00 in-lb
Max. Angle Offset	25.00 º

Features

Features

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

Couplings

Lovejoy 68514445688 D8B UJNT

D8B UJNT 5/8X3/4 KW&SS at 90BE

Material	Steel
Type	Universal Joints - D Type
Weight	0.86 lb
Style	Bored
Color	Metallic
Connection Type A x B	5/8 x 3/4 in

Dimensional Data

Bore A & B	5/8 & 3/4 in
Size	D8B
Keyway A & B (W x D)	3/16 x 3/32 in
Set Screw Size	1/4-20
Outside Diameter	1.250 in
Overall Length	3.75 in
Bore Depth (Dimension C)	1.060 in
Max. Bore (Dimensions ID1/ID2)	0.750 in18.00 mm
Main Pin Height (Dimension E)	1.880 in
Cubic inches	5.85938 in³

Performance Data

Operating Temperature Range	-30 to 212 ºF
Max. Speed	1750.00 rpm
Static Breaking Torque	5220.00 in-lb
Max. Angle Offset	25.00 º

Features

Features

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

Couplings

Lovejoy 68514444285 D8B UJNT

D8B UJNT 5/8X5/8 KW&SS BE

Material	Steel
Type	Universal Joints - D Type
Weight	0.90 lb
Style	Bored
Color	Metallic
Connection Type A x B	5/8 x 5/8 in

Dimensional Data

Bore A & B	5/8 in
Size	D8B
Keyway A & B (W x D)	3/16 x 3/32 in
Set Screw Size	1/4-20
Outside Diameter	1.250 in
Overall Length	3.75 in
Bore Depth (Dimension C)	1.060 in
Max. Bore (Dimensions ID1/ID2)	0.750 in18.00 mm
Main Pin Height (Dimension E)	1.880 in
Cubic inches	5.85938 in³

Performance Data

Operating Temperature Range	-30 to 212 ºF
Max. Speed	1750.00 rpm
Static Breaking Torque	5220.00 in-lb
Max. Angle Offset	25.00 º

Features

Features

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

Couplings

Lovejoy 68514445304 D8B UJNT

D8B UJNT 5/8X5/8 3/16X3/32KBE

Material	Steel
Type	Universal Joints - D Type
Weight	0.90 lb
Style	Bored
Color	Metallic
Connection Type A x B	5/8 x 5/8 in

Dimensional Data

Bore A & B	5/8 in
Size	D8B
Keyway A & B (W x D)	3/16 x 3/32 in
Set Screw Size	1/4-20
Outside Diameter	1.250 in
Overall Length	3.75 in
Bore Depth (Dimension C)	1.060 in
Max. Bore (Dimensions ID1/ID2)	0.750 in18.00 mm
Main Pin Height (Dimension E)	1.880 in
Cubic inches	5.85938 in³

Performance Data

Operating Temperature Range	-30 to 212 ºF
Max. Speed	1750.00 rpm
Static Breaking Torque	5220.00 in-lb
Max. Angle Offset	25.00 º

Features

Features

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

Couplings

Lovejoy 68514415617 NB6B UJNT

NB6B UJNT 1/2X1/2 NKW NSS BE

Type	Universal Joints - NB Type
Material	Steel
Style	Bored
Weight	0.52 lb
Color	Metallic
Bore Type	Finished Bore

Dimensional Data

Bore A & B	1/2 in
Size	NB6B
Set Screw Size	No Setscrew
Keyway A & B (W x D)	No Keyway
Outside Diameter	1.000 in
Overall Length	3.380 in
Bore Depth (Dimension C)	1.000 in
Max. Bore (Dimensions ID1/ID2)	0.750 in19.00 mm
Main Pin Height (Dimension E)	1.680 in
Cubic inches	3.38000 in³

Performance Data

Operating Temperature Range	-30 to 212 ºF
Static Breaking Torque	1150.00 in·lb
Max. Speed	6000 rpm
Static Breaking Torque	1150.00 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.

Couplings

Lovejoy NB8B Universal joint 5-8In no KW

Specifications

Description	NB8B UJNT 5/8X5/8 N/KW N/SS
Type	Universal Joints - NB Type
Material	Steel
Style	Bored
Weight	0.91 lb
Color	Metallic
Bore Type	Finished Bore

Couplings

Lovejoy NB10B Universal joint 3/4In bore No KW

Type	Universal Joints - NB Type
Material	Steel
Style	Bored
Weight	1.48 lb
Color	Metallic
Bore Type	Finished Bore

Couplings

Lovejoy NBDD12B Universal Joint 1in Bore No KW

Type	Universal Joints - NB Type
Material	Steel
Style	Bored
Weight	7.00 lb
Color	Metallic
Bore Type	Finished Bore

Couplings

Lovejoy NB8B Universal joint 1/2in bore x 3/4in bore w KW

Description	NB8B UJNT 1/2X3/4 KW & SS BE
Type	Universal Joints - NB Type
Material	Steel
Style	Bored
Weight	1.74 lb
Color	Metallic
Bore Type	Finished Bore