Curved-Jaw Shaft Couplings

	System of Measurement System of Measurement

Metric

Inch

	For Shaft Diameter For Shaft Diameter

	For Shaft Type For Shaft Type

	Round
	Keyed

	Shaft Mount Type Shaft Mount Type


Clamp On	Set Screw

	OD OD

	Material Material

Aluminum

Plastic

	For Shaft Misalignment Type For Shaft Misalignment Type


Angular	Parallel

Axial

	For Motion Type For Motion Type

Forward/Reverse

Start/Stop

Continuous

	Overall Length Overall Length

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Clamping Screw Finish Clamping Screw Finish

Black Oxide

Zinc Plated

	Number of Set Screws Included Number of Set Screws Included

	Set Screw Finish Set Screw Finish

Zinc Plated

Black Oxide

	Keyway Depth Keyway Depth

	Keyway Width Keyway Width

85 Products

About Shaft Couplings

Components of a Coupling Shown Assembled

(Each Component Sold Separately)

Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft. Tighten the clamping screws to secure. Good for precision motor and pump applications, the spider-shaped cushion reduces shock and compensates for minor shaft misalignment. Couplings allow zero backlash (no play).

A complete coupling consists of two hubs and one spider (each component sold separately). Hubs are lightweight, corrosion-resistant aluminum. Spiders are polyurethane for fair vibration damping and good chemical resistance.

For technical drawings and 3-D models, click on a part number.

Hubs and Durometer 98A Spiders

							Durometer 98A Polyurethane Spiders
2024 Aluminum Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
1 7/64"	3/4"	Round	Forward/Reverse, Start/Stop	3/16", 1/4", 5/16", 4mm, 5mm, 6mm, 7mm, 8mm	000000	000000	8,000	30	0.003"	0.8°	0° to 180°	0000000	000000
1 13/32"	1"	Round	Forward/Reverse, Start/Stop	1/4", 5/16", 3/8", 1/2", 6mm, 7mm, 8mm, 9mm	000000	00000	8,000	150	0.003"	0.8°	0° to 180°	0000000	00000
1 13/32"	1"	Keyed	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm	0000000	00000	8,000	150	0.003"	0.8°	0° to 180°	0000000	00000
1 13/16"	1 5/16"	Round	Forward/Reverse, Start/Stop	5/16", 3/8", 1/2", 5/8", 8mm, 9mm	000000	00000	8,000	170	0.003"	0.8°	0° to 180°	0000000	00000
1 13/16"	1 5/16"	Keyed	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm, 14mm, 15mm, 16mm	0000000	00000	8,000	170	0.003"	0.8°	0° to 180°	0000000	00000
2 7/64"	1 5/8"	Round	Forward/Reverse, Start/Stop	3/8", 1/2", 5/8", 3/4"	0000000	00000	8,000	330	0.004"	0.8°	0° to 180°	0000000	00000
2 7/64"	1 5/8"	Keyed	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm, 14mm, 15mm, 16mm, 20mm	000000	00000	8,000	330	0.004"	0.8°	0° to 180°	0000000	00000
2 13/32"	2"	Round	Forward/Reverse, Start/Stop	1/2", 5/8", 3/4", 1"	0000000	00000	8,000	550	0.005"	0.8°	0° to 180°	0000000	00000
2 13/32"	2"	Keyed	Forward/Reverse, Start/Stop	12mm, 14mm, 15mm, 16mm, 20mm, 25mm	000000	00000	8,000	550	0.005"	0.8°	0° to 180°	0000000	00000
3 13/64"	2 1/4"	Round	Forward/Reverse, Start/Stop	1/2", 5/8", 3/4", 1"	0000000	000000	8,000	820	0.004"	0.8°	0° to 180°	0000000	00000
3 13/64"	2 1/4"	Keyed	Forward/Reverse, Start/Stop	14mm, 15mm, 16mm, 20mm, 25mm, 30mm	000000	000000	8,000	820	0.004"	0.8°	0° to 180°	0000000	00000
21.8mm	15mm	Round	Forward/Reverse, Start/Stop	3mm, 4mm, 5mm, 6mm	0000000	00000	8,000	16	0.002"	0.8°	0° to 180°	00000000	00000
35.3mm	25.4mm	Round	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm	0000000	00000	8,000	150	0.003"	0.8°	0° to 180°	0000000	00000
35.3mm	25.4mm	Keyed	Forward/Reverse, Start/Stop	8mm, 9mm	0000000	00000	8,000	150	0.003"	0.8°	0° to 180°	0000000	00000
44.5mm	33.3mm	Round	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm	0000000	00000	8,000	170	0.003"	0.8°	0° to 180°	0000000	00000
44.5mm	33.3mm	Keyed	Forward/Reverse, Start/Stop	8mm, 9mm	0000000	00000	8,000	170	0.003"	0.8°	0° to 180°	0000000	00000
53mm	41.3mm	Round	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm	0000000	00000	8,000	330	0.004"	0.8°	0° to 180°	0000000	00000
53mm	41.3mm	Keyed	Forward/Reverse, Start/Stop	13mm, 17mm, 18mm, 19mm	0000000	00000	8,000	330	0.004"	0.8°	0° to 180°	0000000	00000
61mm	50.8mm	Round	Forward/Reverse, Start/Stop	12mm, 15mm, 19mm, 22mm, 24mm, 25mm	0000000	00000	8,000	550	0.005"	0.8°	0° to 180°	0000000	00000
61mm	50.8mm	Keyed	Forward/Reverse, Start/Stop	17mm, 19mm, 22mm, 24mm	0000000	000000	8,000	550	0.005"	0.8°	0° to 180°	0000000	00000
80mm	57.2mm	Round	Forward/Reverse, Start/Stop	16mm, 19mm, 20mm, 22mm, 25mm, 30mm, 32mm	0000000	000000	8,000	820	0.004"	0.8°	0° to 180°	0000000	00000
80mm	57.2mm	Keyed	Forward/Reverse, Start/Stop	19mm, 22mm, 24mm, 28mm	0000000	000000	8,000	820	0.004"	0.8°	0° to 180°	0000000	00000

Hubs and Durometer 92A Spiders

							Durometer 92A Polyurethane Spiders
2024 Aluminum Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
1 7/64"	3/4"	Round	Forward/Reverse, Start/Stop	3/16", 1/4", 5/16", 4mm, 5mm, 6mm, 7mm, 8mm	000000	000000	8,000	18	0.004"	0.9°	0° to 180°	0000000	000000
1 13/32"	1"	Round	Forward/Reverse, Start/Stop	1/4", 5/16", 3/8", 1/2", 6mm, 7mm, 8mm, 9mm	000000	00000	8,000	58	0.005"	0.9°	0° to 180°	0000000	00000
1 13/32"	1"	Keyed	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm	0000000	00000	8,000	58	0.005"	0.9°	0° to 180°	0000000	00000
1 13/16"	1 5/16"	Round	Forward/Reverse, Start/Stop	5/16", 3/8", 1/2", 5/8", 8mm, 9mm	000000	00000	8,000	70	0.005"	0.9°	0° to 180°	0000000	00000
1 13/16"	1 5/16"	Keyed	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm, 14mm, 15mm, 16mm	0000000	00000	8,000	70	0.005"	0.9°	0° to 180°	0000000	00000
2 7/64"	1 5/8"	Round	Forward/Reverse, Start/Stop	3/8", 1/2", 5/8", 3/4"	0000000	00000	8,000	190	0.006"	0.9°	0° to 180°	0000000	00000
2 7/64"	1 5/8"	Keyed	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm, 14mm, 15mm, 16mm, 20mm	000000	00000	8,000	190	0.006"	0.9°	0° to 180°	0000000	00000
2 13/32"	2"	Round	Forward/Reverse, Start/Stop	1/2", 5/8", 3/4", 1"	0000000	00000	8,000	440	0.006"	0.9°	0° to 180°	0000000	00000
2 13/32"	2"	Keyed	Forward/Reverse, Start/Stop	12mm, 14mm, 15mm, 16mm, 20mm, 25mm	000000	00000	8,000	440	0.006"	0.9°	0° to 180°	0000000	00000
3 13/64"	2 1/4"	Round	Forward/Reverse, Start/Stop	1/2", 5/8", 3/4", 1"	0000000	000000	8,000	570	0.005"	0.9°	0° to 180°	0000000	00000
3 13/64"	2 1/4"	Keyed	Forward/Reverse, Start/Stop	14mm, 15mm, 16mm, 20mm, 25mm, 30mm	000000	000000	8,000	570	0.005"	0.9°	0° to 180°	0000000	00000
21.8mm	15mm	Round	Forward/Reverse, Start/Stop	3mm, 4mm, 5mm, 6mm	0000000	00000	8,000	10	0.004"	0.9°	0° to 180°	00000000	00000
35.3mm	25.4mm	Round	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm	0000000	00000	8,000	58	0.005"	0.9°	0° to 180°	0000000	00000
35.3mm	25.4mm	Keyed	Forward/Reverse, Start/Stop	8mm, 9mm	0000000	00000	8,000	58	0.005"	0.9°	0° to 180°	0000000	00000
44.5mm	33.3mm	Round	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm	0000000	00000	8,000	70	0.005"	0.9°	0° to 180°	0000000	00000
44.5mm	33.3mm	Keyed	Forward/Reverse, Start/Stop	8mm, 9mm	0000000	00000	8,000	70	0.005"	0.9°	0° to 180°	0000000	00000
53mm	41.3mm	Round	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm, 13mm, 14mm, 17mm, 18mm, 15mm, 16mm, 19mm, 20mm	0000000	00000	8,000	190	0.006"	0.9°	0° to 180°	0000000	00000
53mm	41.3mm	Keyed	Forward/Reverse, Start/Stop	13mm, 17mm, 18mm, 19mm	0000000	00000	8,000	190	0.006"	0.9°	0° to 180°	0000000	00000
61mm	50.8mm	Round	Forward/Reverse, Start/Stop	12mm, 15mm, 19mm, 22mm, 24mm, 25mm	0000000	00000	8,000	440	0.006"	0.9°	0° to 180°	0000000	00000
61mm	50.8mm	Keyed	Forward/Reverse, Start/Stop	17mm, 19mm, 22mm, 24mm	0000000	000000	8,000	440	0.006"	0.9°	0° to 180°	0000000	00000
80mm	57.2mm	Round	Forward/Reverse, Start/Stop	16mm, 19mm, 20mm, 22mm, 25mm, 30mm, 32mm	0000000	000000	8,000	570	0.005"	0.9°	0° to 180°	0000000	00000
80mm	57.2mm	Keyed	Forward/Reverse, Start/Stop	19mm, 22mm, 24mm, 28mm	0000000	000000	8,000	570	0.005"	0.9°	0° to 180°	0000000	00000

Hubs and Durometer 85A Spiders

							Durometer 85A Polyurethane Spiders
2024 Aluminum Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
1 7/64"	3/4"	Round	Forward/Reverse, Start/Stop	3/16", 1/4", 5/16", 4mm, 5mm, 6mm, 7mm, 8mm	000000	000000	8,000	10	0.005"	1°	0° to 180°	0000000	000000
1 13/32"	1"	Round	Forward/Reverse, Start/Stop	1/4", 5/16", 3/8", 1/2", 6mm, 7mm, 8mm, 9mm	000000	00000	8,000	30	0.006"	1°	0° to 180°	0000000	00000
1 13/32"	1"	Keyed	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm	0000000	00000	8,000	30	0.006"	1°	0° to 180°	0000000	00000
1 13/16"	1 5/16"	Round	Forward/Reverse, Start/Stop	5/16", 3/8", 1/2", 5/8", 8mm, 9mm	000000	00000	8,000	36	0.006"	1°	0° to 180°	0000000	00000
1 13/16"	1 5/16"	Keyed	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm, 14mm, 15mm, 16mm	0000000	00000	8,000	36	0.006"	1°	0° to 180°	0000000	00000
21.8mm	15mm	Round	Forward/Reverse, Start/Stop	3mm, 4mm, 5mm, 6mm	0000000	00000	8,000	4.8	0.005"	1°	0° to 180°	00000000	00000
35.3mm	25.4mm	Round	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm	0000000	00000	8,000	30	0.006"	1°	0° to 180°	0000000	00000
35.3mm	25.4mm	Keyed	Forward/Reverse, Start/Stop	8mm, 9mm	0000000	00000	8,000	30	0.006"	1°	0° to 180°	0000000	00000
44.5mm	33.3mm	Round	Forward/Reverse, Start/Stop	10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm	0000000	00000	8,000	36	0.006"	1°	0° to 180°	0000000	00000
44.5mm	33.3mm	Keyed	Forward/Reverse, Start/Stop	8mm, 9mm	0000000	00000	8,000	36	0.006"	1°	0° to 180°	0000000	00000

Set Screw Vibration-Damping Precision Flexible Shaft Couplings

Components of a Coupling Shown Assembled

(Each Component Sold Separately)

The included set screw holds the coupling in place. Good for precision motor and pump applications, the spider-shaped cushion reduces shock and compensates for minor shaft misalignment. Couplings allow zero backlash (no play).

A complete coupling consists of two hubs and one spider (each component sold separately). Spiders are polyurethane for fair vibration damping and good chemical resistance.

Nylon hubs are electrically insulating, corrosion resistant, and lightweight. They also are slightly more forgiving of misalignment than aluminum hubs.

Aluminum hubs have good corrosion resistance and are lightweight, though not as lightweight as nylon hubs.

For technical drawings and 3-D models, click on a part number.

Nylon Hubs and Durometer 98A Spiders

							Durometer 98A Polyurethane Spiders
Nylon Plastic Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
1 13/32"	1 5/16"	__	Forward/Reverse, Start/Stop	1/4", 3/8", 1/2", 5/8"	000000	000000	10,000	220	0.011"	1°	0° to 180°	0000000	00000
2 39/64"	1 45/64"	Keyed	Forward/Reverse, Start/Stop	3/8", 1/2", 5/8", 3/4"	000000	00000	9,000	300	0.011"	1°	0° to 180°	0000000	0000
3 7/64"	2 13/64"	Keyed	Forward/Reverse, Start/Stop	5/8", 3/4", 1"	000000	00000	8,000	1,060	0.011"	1°	0° to 180°	0000000	00000
3 1/2"	2 39/64"	Keyed	Forward/Reverse, Start/Stop	3/4", 1", 1 1/4", 1 1/2"	000000	00000	7,000	2,830	0.011"	1°	0° to 180°	0000000	00000
35mm	32mm	Keyed	Forward/Reverse, Start/Stop	7mm, 8mm, 10mm, 11mm, 12mm, 14mm, 16mm	000000	00000	10,000	220	0.011"	1°	0° to 180°	0000000	0000
66mm	42mm	Keyed	Forward/Reverse, Start/Stop	10mm, 12mm, 14mm, 15mm, 18mm, 19mm, 20mm, 24mm	000000	00000	9,000	300	0.011"	1°	0° to 180°	0000000	0000
78mm	56mm	Keyed	Forward/Reverse, Start/Stop	16mm, 19mm, 20mm, 28mm	000000	00000	8,000	1,060	0.011"	1°	0° to 180°	0000000	00000
90mm	66.5mm	Keyed	Forward/Reverse, Start/Stop	19mm, 25mm, 32mm, 35mm	000000	00000	7,000	2,830	0.011"	1°	0° to 180°	0000000	00000

Aluminum Hubs and Durometer 98A Spiders

							Durometer 98A Polyurethane Spiders
2024 Aluminum Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
21mm	15mm	Round	Continuous, Forward/Reverse, Start/Stop	4mm, 5mm, 6mm	0000000	000000	8,000	16	0.002"	0.8°	-10° to 180°	00000000	000000
27mm	19mm	Round	Continuous, Forward/Reverse, Start/Stop	5mm, 6mm, 7mm, 8mm	0000000	00000	8,000	30	0.003"	0.8°	0° to 180°	0000000	00000
35mm	25mm	Round	Continuous, Forward/Reverse, Start/Stop	6mm, 8mm, 10mm, 11mm, 12mm	0000000	00000	8,000	150	0.003"	0.8°	0° to 180°	0000000	00000
35mm	25mm	Keyed	Continuous, Forward/Reverse, Start/Stop	10mm, 11mm	0000000	00000	8,000	150	0.003"	0.8°	0° to 180°	0000000	00000
44mm	33mm	Round	Continuous, Forward/Reverse, Start/Stop	8mm, 14mm	0000000	00000	8,000	170	0.003"	0.8°	0° to 180°	0000000	00000
44mm	33mm	Keyed	Continuous, Forward/Reverse, Start/Stop	14mm, 16mm	0000000	00000	8,000	170	0.003"	0.8°	0° to 180°	0000000	00000
53mm	41mm	Round	Continuous, Forward/Reverse, Start/Stop	12mm, 14mm, 18mm, 20mm	0000000	00000	8,000	330	0.004"	0.8°	0° to 180°	0000000	00000
53mm	41mm	Keyed	Continuous, Forward/Reverse, Start/Stop	12mm, 14mm, 16mm, 20mm	0000000	00000	8,000	330	0.004"	0.8°	0° to 180°	0000000	00000
61mm	50mm	Keyed	Continuous, Forward/Reverse, Start/Stop	18mm, 20mm, 24mm	0000000	000000	8,000	550	0.005"	0.8°	0° to 180°	0000000	00000
80mm	57mm	Keyed	Continuous, Forward/Reverse, Start/Stop	14mm, 20mm, 24mm, 28mm	0000000	000000	8,000	820	0.004"	0.8°	0° to 180°	0000000	00000

Nylon Hubs and Durometer 64D Spiders

							Durometer 64D Polyurethane Spiders
Nylon Plastic Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
1 13/32"	1 5/16"	__	Forward/Reverse, Start/Stop	1/4", 3/8", 1/2", 5/8"	000000	000000	10,000	280	0.011"	0.8°	0° to 180°	0000000	00000
2 39/64"	1 45/64"	Keyed	Forward/Reverse, Start/Stop	3/8", 1/2", 5/8", 3/4"	000000	00000	9,000	370	0.011"	0.8°	0° to 180°	0000000	0000
3 7/64"	2 13/64"	Keyed	Forward/Reverse, Start/Stop	5/8", 3/4", 1"	000000	00000	8,000	1,320	0.011"	0.8°	0° to 180°	0000000	00000
3 1/2"	2 39/64"	Keyed	Forward/Reverse, Start/Stop	3/4", 1", 1 1/4", 1 1/2"	000000	00000	7,000	3,540	0.011"	0.8°	0° to 180°	0000000	00000
35mm	32mm	Keyed	Forward/Reverse, Start/Stop	7mm, 8mm, 10mm, 11mm, 12mm, 14mm, 16mm	000000	00000	10,000	280	0.011"	0.8°	0° to 180°	0000000	0000
66mm	42mm	Keyed	Forward/Reverse, Start/Stop	10mm, 12mm, 14mm, 15mm, 18mm, 19mm, 20mm, 24mm	000000	00000	9,000	370	0.011"	0.8°	0° to 180°	0000000	0000
78mm	56mm	Keyed	Forward/Reverse, Start/Stop	16mm, 19mm, 20mm, 28mm	000000	00000	8,000	1,320	0.011"	0.8°	0° to 180°	0000000	00000
90mm	66.5mm	Keyed	Forward/Reverse, Start/Stop	19mm, 25mm, 32mm, 35mm	000000	00000	7,000	3,540	0.011"	0.8°	0° to 180°	0000000	00000

Aluminum Hubs and Durometer 92A Spiders

							Durometer 92A Polyurethane Spiders
2024 Aluminum Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
21mm	15mm	Round	Continuous, Forward/Reverse, Start/Stop	4mm, 5mm, 6mm	0000000	000000	8,000	10	0.004"	0.9°	-10° to 180°	00000000	000000
27mm	19mm	Round	Continuous, Forward/Reverse, Start/Stop	5mm, 6mm, 7mm, 8mm	0000000	00000	8,000	18	0.004"	0.9°	0° to 180°	0000000	00000
35mm	25mm	Round	Continuous, Forward/Reverse, Start/Stop	6mm, 8mm, 10mm, 11mm, 12mm	0000000	00000	8,000	58	0.005"	0.9°	0° to 180°	0000000	00000
35mm	25mm	Keyed	Continuous, Forward/Reverse, Start/Stop	10mm, 11mm	0000000	00000	8,000	58	0.005"	0.9°	0° to 180°	0000000	00000
44mm	33mm	Round	Continuous, Forward/Reverse, Start/Stop	8mm, 14mm	0000000	00000	8,000	70	0.005"	0.9°	0° to 180°	0000000	00000
44mm	33mm	Keyed	Continuous, Forward/Reverse, Start/Stop	14mm, 16mm	0000000	00000	8,000	70	0.005"	0.9°	0° to 180°	0000000	00000
53mm	41mm	Round	Continuous, Forward/Reverse, Start/Stop	12mm, 14mm, 18mm, 20mm	0000000	00000	8,000	190	0.006"	0.9°	0° to 180°	0000000	00000
53mm	41mm	Keyed	Continuous, Forward/Reverse, Start/Stop	12mm, 14mm, 16mm, 20mm	0000000	00000	8,000	190	0.006"	0.9°	0° to 180°	0000000	00000
61mm	50mm	Keyed	Continuous, Forward/Reverse, Start/Stop	18mm, 20mm, 24mm	0000000	000000	8,000	440	0.006"	0.9°	0° to 180°	0000000	00000
80mm	57mm	Keyed	Continuous, Forward/Reverse, Start/Stop	14mm, 20mm, 24mm, 28mm	0000000	000000	8,000	570	0.005"	0.9°	0° to 180°	0000000	00000

Aluminum Hubs and Durometer 85A Spiders

							Durometer 85A Polyurethane Spiders
2024 Aluminum Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
21mm	15mm	Round	Continuous, Forward/Reverse, Start/Stop	4mm, 5mm, 6mm	0000000	000000	8,000	4.8	0.005"	1°	-10° to 180°	00000000	000000
27mm	19mm	Round	Continuous, Forward/Reverse, Start/Stop	5mm, 6mm, 7mm, 8mm	0000000	00000	8,000	10	0.005"	1°	0° to 180°	0000000	00000
35mm	25mm	Round	Continuous, Forward/Reverse, Start/Stop	6mm, 8mm, 10mm, 11mm, 12mm	0000000	00000	8,000	30	0.006"	1°	0° to 180°	0000000	00000
35mm	25mm	Keyed	Continuous, Forward/Reverse, Start/Stop	10mm, 11mm	0000000	00000	8,000	30	0.006"	1°	0° to 180°	0000000	00000
44mm	33mm	Round	Continuous, Forward/Reverse, Start/Stop	8mm, 14mm	0000000	00000	8,000	36	0.006"	1°	0° to 180°	0000000	00000
44mm	33mm	Keyed	Continuous, Forward/Reverse, Start/Stop	14mm, 16mm	0000000	00000	8,000	36	0.006"	1°	0° to 180°	0000000	00000

Nylon Hubs and Durometer 80A Spiders

							Durometer 80A Polyurethane Spiders
Nylon Plastic Hubs									Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
1 13/32"	1 5/16"	__	Forward/Reverse, Start/Stop	1/4", 3/8", 1/2", 5/8"	000000	000000	10,000	50	0.011"	1.2°	0° to 180°	0000000	00000
2 39/64"	1 45/64"	Keyed	Forward/Reverse, Start/Stop	3/8", 1/2", 5/8", 3/4"	000000	00000	9,000	105	0.011"	1.2°	0° to 180°	0000000	0000
3 7/64"	2 13/64"	Keyed	Forward/Reverse, Start/Stop	5/8", 3/4", 1"	000000	00000	8,000	305	0.011"	1.2°	0° to 180°	0000000	00000
3 1/2"	2 39/64"	Keyed	Forward/Reverse, Start/Stop	3/4", 1", 1 1/4", 1 1/2"	000000	00000	7,000	750	0.011"	1.2°	0° to 180°	0000000	00000
35mm	32mm	Keyed	Forward/Reverse, Start/Stop	7mm, 8mm, 10mm, 11mm, 12mm, 14mm, 16mm	000000	00000	10,000	50	0.011"	1.2°	0° to 180°	0000000	0000
66mm	42mm	Keyed	Forward/Reverse, Start/Stop	10mm, 12mm, 14mm, 15mm, 18mm, 19mm, 20mm, 24mm	000000	00000	9,000	105	0.011"	1.2°	0° to 180°	0000000	0000
78mm	56mm	Keyed	Forward/Reverse, Start/Stop	16mm, 19mm, 20mm, 28mm	000000	00000	8,000	305	0.011"	1.2°	0° to 180°	0000000	00000
90mm	66.5mm	Keyed	Forward/Reverse, Start/Stop	19mm, 25mm, 32mm, 35mm	000000	00000	7,000	750	0.011"	1.2°	0° to 180°	0000000	00000

Clamping Flexible Shaft Couplings

Components of a Coupling Shown Assembled

(Each Component Sold Separately)

Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft. Tighten the clamping screw to secure. Also known as Lovejoy® couplings, they have a spider-shaped cushion between two hubs to reduce shock and handle minor shaft misalignment.

A complete coupling consists of two hubs and one spider (each component sold separately). Hubs are aluminum for light weight and good corrosion resistance.

Hytrel spiders provide fair vibration damping and excellent chemical resistance. Polyurethane spiders provide fair vibration damping and good chemical resistance.

For technical drawings and 3-D models, click on a part number.

6026 Aluminum Hubs and Hytrel Rubber Spiders

						Hytrel Rubber Spiders
6026 Aluminum Hubs								Misalignment Capability
O'all Lg.	OD	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
7/8"	9/16"	Forward/Reverse, Start/Stop	1/8", 3/16", 1/4"	0000000	000000	27,000	42	0.002"	0.8°	-55° to 245°	0000000	00000
1 3/16"	51/64"	Forward/Reverse, Start/Stop	3/16", 1/4", 5/16", 3/8"	0000000	00000	19,000	105	0.002"	0.8°	-55° to 245°	0000000	00000
1 11/32"	63/64"	Forward/Reverse, Start/Stop	3/16", 1/4", 5/16", 3/8", 7/16"	0000000	00000	15,200	210	0.002"	0.8°	-55° to 245°	0000000	00000
1 25/64"	1 3/16"	Forward/Reverse, Start/Stop	3/16", 1/4", 3/8", 1/2", 5/8"	0000000	00000	12,700	280	0.002"	0.8°	-55° to 245°	0000000	00000

6026 Aluminum Hubs and Polyurethane Spiders

						Polyurethane Spiders
6026 Aluminum Hubs								Misalignment Capability
O'all Lg.	OD	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
7/8"	9/16"	Forward/Reverse, Start/Stop	1/8", 3/16", 1/4"	0000000	000000	27,000	21	0.004"	1°	-30° to 160°	0000000	00000
1 3/16"	51/64"	Forward/Reverse, Start/Stop	3/16", 1/4", 5/16", 3/8"	0000000	00000	19,000	53	0.004"	1°	-30° to 160°	0000000	0000
1 11/32"	63/64"	Forward/Reverse, Start/Stop	3/16", 1/4", 5/16", 3/8", 7/16"	0000000	00000	15,200	89	0.004"	1°	-30° to 160°	0000000	00000
1 25/64"	1 3/16"	Forward/Reverse, Start/Stop	3/16", 1/4", 3/8", 1/2", 5/8"	0000000	00000	12,700	130	0.004"	1°	-30° to 160°	0000000	0000

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Clamping Vibration-Damping Precision Flexible Shaft Couplings

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Clamping Flexible Shaft Couplings