Sanitary Shaft Couplings

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System of Measurement

Shaft Diameter

Construction

Material

Shaft Type

Overall Length

Shaft Mount Type

Maximum Rotation Speed

For Shaft Misalignment Type

Angular

Parallel

Parallel Misalignment Capability

1.3 mm

1.5 mm

2 mm

Shaft Coupling Flexibility

Flexible

Clamping Screw Material

Stainless Steel

Maximum Torque

Less than 10,000 in·lbf

Angular Misalignment Capability

Length

Keyway Width

Environment

For Rotary Motion

Rotation Speed

10,000 rpm to 19,999 rpm

20,000 rpm to 29,999 rpm

30,000 rpm to 39,999 rpm

Torque

Less than 10,000 in·lbf

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

REACH

Compliant

RoHS

Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

25 Products

Cleaned and Bagged Flexible Shaft Couplings

Often used in electronics manufacturing facilities and other extra-clean environments, these shaft couplings are cleaned and individually bagged to keep out contaminants. Their center also doesn’t outgas much, helping keep contaminants low as well. All are compatible with most commercial acids except concentrated nitric and sulfuric acid. Also known as Oldham couplings, their slotted center lets the hubs slide independently, so they’re good for applications with parallel shaft misalignment. They never require lubrication.

						Misalignment Capability
	For Shaft Diameter	Overall Lg., mm	OD, mm	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel, mm	Angular	For Rotary Motion	Temp. Range, ° F		Each
2017 Aluminum with PEEK Center



		5 mm × 5 mm	22	20	31,000	10	1.3	2°	Forward/Reverse, Start/Stop	0 to 240	8819N37	0000000


		5 mm × 6 mm	22	20	31,000	10	1.3	2°	Forward/Reverse, Start/Stop	0 to 240	8819N38	000000
		5 mm × 8 mm	22	20	31,000	10	1.3	2°	Forward/Reverse, Start/Stop	0 to 240	8819N39	000000
		6 mm × 6 mm	22	20	31,000	10	1.3	2°	Forward/Reverse, Start/Stop	0 to 240	8819N41	000000
		6 mm × 8 mm	22	20	31,000	10	1.3	2°	Forward/Reverse, Start/Stop	0 to 240	8819N42	000000
		8 mm × 8 mm	27	25	25,000	20	1.5	2°	Forward/Reverse, Start/Stop	0 to 240	8819N44	000000
		8 mm × 10 mm	27	25	25,000	20	1.5	2°	Forward/Reverse, Start/Stop	0 to 240	8819N45	000000
		10 mm × 10 mm	33	32	19,000	45	2	2°	Forward/Reverse, Start/Stop	0 to 240	8819N47	000000
		10 mm × 11 mm	33	32	19,000	45	2	2°	Forward/Reverse, Start/Stop	0 to 240	8819N48	000000
		10 mm × 12 mm	33	32	19,000	45	2	2°	Forward/Reverse, Start/Stop	0 to 240	8819N49	000000
		10 mm × 14 mm	33	32	19,000	45	2	2°	Forward/Reverse, Start/Stop	0 to 240	8819N51	000000


		11 mm × 11 mm	33	32	19,000	45	2	2°	Forward/Reverse, Start/Stop	0 to 240	8819N52	000000
		11 mm × 12 mm	33	32	19,000	45	2	2°	Forward/Reverse, Start/Stop	0 to 240	8819N53	000000
		11 mm × 14 mm	33	32	19,000	45	2	2°	Forward/Reverse, Start/Stop	0 to 240	8819N54	000000
		12 mm × 12 mm	33	32	19,000	45	2	2°	Forward/Reverse, Start/Stop	0 to 240	8819N55	000000

Sanitary Sealed Single U-Joints

Replacement Covers

Often found in food, cosmetic, and pharmaceutical plants, these U-joints connect misaligned shafts in sanitary environments. Their stainless steel body won't corrode from frequent washdowns with harsh chemicals and is highly polished, so there's no crevices for bacteria to grow. Their lubricant is NSF registered H1 for incidental contact with food. A heat- and water-resistant silicone cover (sometimes called a boot or bellows) seals this lubricant in and keeps out contaminants.

They’re single U-joints, so they connect and transfer torque between two shafts that are misaligned at an angle. A good choice for applications that run continuously, they operate at higher speeds and last longer than other types of joints, thanks to their needle bearings. Since they come lubricated, you won’t need to lubricate them during installation. Connect them to shafts using the included set screws. Unlike U-joints that use spring pins, there’s no drilling required.

Your shafts’ misalignment will affect the speed and torque the U-joint will be able to transmit. The more the shafts are misaligned, the less speed and torque the U-joint will be able to transmit.

FDA Compliant 21 CFR 177.2600—FDA-compliant U-joints have a cover that is safe for direct contact with food.

	U-Joints																	Replacement Covers
	For Shaft					Keyway					Torque
	Dia.	Dp.	Joint Dia.	Overall Lg.	OD	Wd.	Dp.	Max. Operating Angle	Max. Rotation Speed, rpm	Max. Torque, in·lbf	3° Operating Angle	10° Operating Angle	Bellows Material	Joint Type	For Shaft Type		Each		Each
316 Stainless Steel with Steel Bearings







				FDA Compliant 21 CFR 177.2600 U-Joints

				3/8"	15/16"	3/4"	2 11/16"	1 3/8"	3/32"	3/64"	35°	6,000	95	28 in·lbf @ 1,000 rpm	19 in·lbf @ 1,000 rpm	Silicone Rubber	Needle Bearing	Keyed	7376N11	0000000	7376N16	000000


				1/2"	1 3/16"	1"	3 3/8"	1 1/2"	1/8"	1/16"	35°	6,000	215	110 in·lbf @ 1,000 rpm	77 in·lbf @ 1,000 rpm	Silicone Rubber	Needle Bearing	Keyed	7376N12	000000	7376N17	00000
				5/8"	1 1/4"	1 1/4"	3 3/4"	1 7/8"	3/16"	3/32"	35°	6,000	700	275 in·lbf @ 1,000 rpm	185 in·lbf @ 1,000 rpm	Silicone Rubber	Needle Bearing	Keyed	7376N13	000000	7376N18	00000




						U-Joints

						3/4"	1 3/8"	1 1/2"	4 1/4"	2 1/4"	3/16"	3/32"	35°	6,000	1,780	545 in·lbf @ 1,000 rpm	370 in·lbf @ 1,000 rpm	Silicone Rubber	Needle Bearing	Keyed	7376N14	000000	7376N19	00000


						1"	1 11/16"	2"	5 1/2"	2 11/16"	1/4"	1/8"	35°	6,000	4,300	1,050 in·lbf @ 1,000 rpm	705 in·lbf @ 1,000 rpm	Silicone Rubber	Needle Bearing	Keyed	7376N15	00000000	7376N21	000000