Miniature Slip Clutches | McMaster-Carr

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Shaft Diameter

Shaft Type

Drive Type

Maximum Torque

Torque

1.6 in·lbf to 16 in·lbf

2 in·lbf to 20 in·lbf

2.5 in·lbf to 25 in·lbf

5 in·lbf to 50 in·lbf

7.5 in·lbf to 75 in·lbf

10 in·lbf to 100 in·lbf

30 in·lbf to 300 in·lbf

Construction

Overall Length

Maximum Rotation Speed

50 rpm

Not Rated

Torque Adjustment Mechanism

Air

Manual

Mounting Hole Thread Size

Length

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

Yes

REACH

Not Compliant

RoHS

Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Keyway Width

Thread Size

Keyway Depth

32 Products

Friction Torque Limiters

Use friction to prevent torque overload, control tension, and brake. These torque limiters slip when there’s too much torque while still transmitting the set torque. For example, they could be used in a machine that tightens a bottle cap to a certain torque without overtightening and breaking the bottle. Because they rely on friction, exposing them to moisture, oil, or lubricants can affect their performance. They have an adjustment ring, so you can set the torque limit by hand without removing them from your shaft. Fasten them to your shaft by tightening the set screws, which bite into the shaft to hold it.

Shaft-to-Shaft

Image of Product. Front orientation. Torque Limiters. Friction Torque Limiters.

Shaft-to-shaft torque limiters also act as a shaft coupling, allowing you to regulate torque transmission between two shafts.

						Keyway
	For Shaft Dia.	Torque, in·lbf	Max. Rotation Speed, rpm	OD	Overall Lg.	Wd.	Dp.	Drive Direction	Shaft Mount Type		Each
For Round Shafts



		1/4"	1.6 to 16	50	1"	1 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	9132K11	0000000


		3/8"	1.6 to 16	50	1"	1 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	9132K13	000000
		3/8"	2.5 to 25	50	1 3/8"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	9132K15	000000
		1/2"	2.5 to 25	50	1 3/8"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	9132K17	000000
		1/2"	5 to 50	50	1 5/8"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	9132K19	000000
		1/2"	7.5 to 75	50	2 1/4"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	9132K23	000000
		5/8"	5 to 50	50	1 5/8"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	9132K21	000000
		5/8"	7.5 to 75	50	2 1/4"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	9132K25	000000


		For Keyed Shafts



				1/4"	1.6 to 16	50	1"	1 1/2"	1/16"	1/32"	Clockwise and Counterclockwise	Set Screw	9132K51	000000


				3/8"	2.5 to 25	50	1 3/8"	2 1/2"	3/32"	3/64"	Clockwise and Counterclockwise	Set Screw	9132K52	000000
				1/2"	5 to 50	50	1 5/8"	2 1/2"	1/8"	1/16"	Clockwise and Counterclockwise	Set Screw	9132K54	000000
				1/2"	7.5 to 75	50	2 1/4"	2 1/2"	1/8"	1/16"	Clockwise and Counterclockwise	Set Screw	9132K56	000000

Through Shaft

Through-shaft torque limiters regulate torque transmission between an input shaft and a mounted component, such as a pulley, sprocket, or gear.

						Keyway
	For Shaft Dia.	Torque, in·lbf	Max. Rotation Speed, rpm	OD	Overall Lg.	Wd.	Dp.	Drive Direction	Shaft Mount Type	Mounting Hole Thread Size		Each
For Round Shafts



		1/4"	1.6 to 16	50	1"	1 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	4-40	9132K31	0000000


		3/8"	1.6 to 16	50	1"	1 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	4-40	9132K32	000000
		3/8"	2.5 to 25	50	1 3/8"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	6-32	9132K33	000000
		1/2"	2.5 to 25	50	1 3/8"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	6-32	9132K34	000000
		1/2"	5 to 50	50	1 5/8"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	6-32	9132K35	000000
		1/2"	7.5 to 75	50	2 1/4"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	8-32	9132K37	000000
		5/8"	5 to 50	50	1 5/8"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	6-32	9132K36	000000
		5/8"	7.5 to 75	50	2 1/4"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	8-32	9132K38	000000


		For Keyed Shafts



				1/2"	5 to 50	50	1 5/8"	2 1/2"	1/8"	1/16"	Clockwise and Counterclockwise	Set Screw	6-32	9132K44	000000


				1/2"	7.5 to 75	50	2 1/4"	2 1/2"	1/8"	1/16"	Clockwise and Counterclockwise	Set Screw	8-32	9132K46	000000

Remote-Adjust Air-Powered Friction Torque Limiters

Use your air system to remotely make changes to the torque setting or cut off torque completely, even during operation. Adjust the torque setting by adjusting the air pressure—the higher the pressure, the higher the set torque. When these torque limiters exceed their set torque, they’ll slip but still transmit the set torque. They use friction to prevent torque overload, control tension, and brake. They’re often used in automated systems. For instance, they can be used in a machine that tightens a bottle cap to a certain torque without overtightening it and breaking the bottle. Because they rely on friction, exposing them to moisture, oil, or lubricants can affect their performance.

Fasten them to your shaft by tightening the set screws, which bite into the shaft to hold it.

Shaft-to-Shaft

Shaft-to-shaft torque limiters also act as a shaft coupling, allowing you to regulate torque transmission between two shafts.

							Keyway				Air Inlet
	For Shaft Dia.	Torque, in·lbf	Max. Pressure, psi	Max. Rotation Speed	OD	Overall Lg.	Wd.	Dp.	Drive Direction	Shaft Mount Type	Thread Size	Thread Type	Gender		Each
For Round Shafts



		1/4"	2 to 20	100	Not Rated	1 1/4"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	10-32	UNF	Female	9133K11	0000000


		3/8"	5 to 50	100	Not Rated	1 1/2"	3 3/8"	—	—	Clockwise and Counterclockwise	Set Screw	10-32	UNF	Female	9133K12	000000
		1/2"	10 to 100	100	Not Rated	2"	3 5/8"	—	—	Clockwise and Counterclockwise	Set Screw	10-32	UNF	Female	9133K15	000000
		5/8"	30 to 300	100	Not Rated	2 3/4"	3 5/8"	—	—	Clockwise and Counterclockwise	Set Screw	10-32	UNF	Female	9133K19	000000


		For Keyed Shafts



				1/2"	10 to 100	100	Not Rated	2"	3 5/8"	1/8"	1/16"	Clockwise and Counterclockwise	Set Screw	10-32	UNF	Female	9133K53	000000


				5/8"	30 to 300	100	Not Rated	2 3/4"	3 5/8"	3/16"	3/32"	Clockwise and Counterclockwise	Set Screw	10-32	UNF	Female	9133K54	000000

Through Shaft

Through-shaft torque limiters regulate torque transmission between an input shaft and a mounted component, such as a pulley, sprocket, or gear.

							Keyway					Air Inlet
	For Shaft Dia.	Torque, in·lbf	Max. Pressure, psi	Max. Rotation Speed	OD	Overall Lg.	Wd.	Dp.	Drive Direction	Shaft Mount Type	Mounting Hole Thread Size	Thread Size	Thread Type	Gender		Each
For Round Shafts



		1/4"	2 to 20	100	Not Rated	1 1/4"	2 1/2"	—	—	Clockwise and Counterclockwise	Set Screw	4-40	10-32	UNF	Female	9133K31	0000000


		3/8"	5 to 50	100	Not Rated	1 1/2"	3 3/8"	—	—	Clockwise and Counterclockwise	Set Screw	6-32	10-32	UNF	Female	9133K32	000000
		1/2"	10 to 100	100	Not Rated	2"	3 5/8"	—	—	Clockwise and Counterclockwise	Set Screw	6-32	10-32	UNF	Female	9133K33	000000


		For Keyed Shafts



				5/8"	30 to 300	100	Not Rated	2 3/4"	3 5/8"	3/16"	3/32"	Clockwise and Counterclockwise	Set Screw	8-32	10-32	UNF	Female	9133K44	000000