Couplings for 5/32" Shafts

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System of Measurement

Shaft Diameter

6.000 mm to 10.000 mm

6.000 mm to 12.000 mm

6.000 mm to 16.000 mm

6.000 mm to 20.000 mm

7 mm

8 mm

9 mm

9.500 mm to 25.000 mm

9.500 mm to 30.000 mm

9.500 mm to 35.000 mm

10 mm

11 mm

12 mm

12.500 mm to 40.000 mm

Overall Length

For Shaft Misalignment Type

Shaft Type

Material

Flexible Shaft Coupling Cut Style

Shaft Mount Type

Construction

For Rotary Motion

Maximum Rotation Speed

Length

Finish

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

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

RoHS

Axial Misalignment Capability

Flexible Shaft Coupling Type

Beam

Parallel Misalignment Capability

Rotation Speed

10,000 rpm to 19,999 rpm

Torque

Less than 10,000 in·lbf

Angular Misalignment Capability

2°

3°

5°

Maximum Torque

Less than 10,000 in·lbf

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32 Products

Clamping Precision Flexible Shaft Couplings

Spiral Cut

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.

Spiral Cut—Spiral couplings have long cuts in their body for flexibility to handle parallel, axial, and angular misalignment better than parallel couplings. However, they’re not as rigid. Often used for light duty encoder and stepper drive applications, they allow zero backlash (no play) and never need lubrication. They’re also known as helical beam couplings.

7075 Aluminum—7075 aluminum couplings are lightweight with good corrosion resistance.

						Misalignment Capability
	For Shaft Diameter	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	For Rotary Motion		Each
Spiral Cut







				7075 Aluminum

				1/8" × 5/32"	3/4"	1/2"	10,000	5	0.005"	2°	0.005"	Forward/Reverse, Start/Stop	6208K364	0000000


				5/32" × 3/32"	3/4"	1/2"	10,000	5	0.005"	2°	0.005"	Forward/Reverse, Start/Stop	6208K363	000000
				5/32" × 5/32"	1/2"	3/8"	10,000	3	0.005"	2°	0.005"	Forward/Reverse, Start/Stop	6208K329	000000
				5/32" × 5/32"	3/4"	1/2"	10,000	5	0.005"	2°	0.005"	Forward/Reverse, Start/Stop	6208K365	000000
				5/32" × 5/32"	7/8"	5/8"	10,000	12	0.01"	3°	0.008"	Forward/Reverse, Start/Stop	6208K382	00000
				5/32" × 3/16"	3/4"	1/2"	10,000	5	0.005"	2°	0.005"	Forward/Reverse, Start/Stop	6208K368	000000
				5/32" × 3/16"	7/8"	5/8"	10,000	12	0.01"	3°	0.008"	Forward/Reverse, Start/Stop	6208K384	00000
				5/32" × 1/4"	7/8"	5/8"	10,000	12	0.01"	3°	0.008"	Forward/Reverse, Start/Stop	6208K387	00000
				1/4" × 5/32"	3/4"	3/4"	10,000	20	0.006"	3°	0.006"	Forward/Reverse, Start/Stop	6208K431	000000
				1/4" × 5/32"	1"	3/4"	10,000	25	0.01"	3°	0.008"	Forward/Reverse, Start/Stop	6208K455	00000
				1/4" × 5/32"	1 1/2"	1"	10,000	63	0.015"	5°	0.01"	Forward/Reverse, Start/Stop	6208K522	00000


				5/16" × 5/32"	1"	3/4"	10,000	25	0.01"	3°	0.008"	Forward/Reverse, Start/Stop	6208K459	00000
				3/8" × 5/32"	1"	1"	10,000	42	0.006"	3°	0.006"	Forward/Reverse, Start/Stop	6208K492	00000

Set Screw Precision Flexible Shaft Couplings

Tighten the set screws to fasten these couplings to your shaft. Set screws bite into the shaft to hold the couplings in place. All are lightweight, corrosion-resistant aluminum.

Spiral Cut—Spiral couplings have long, continuous cuts in the body, making them flexible enough to handle parallel, axial, and angular misalignment. Often used for light duty encoder and stepper drive applications, they allow zero backlash (no play) and never need lubrication. They’re also known as helical beam couplings. Spiral couplings are less rigid than parallel couplings.

						Misalignment Capability
	For Shaft Diameter	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	For Rotary Motion		Each
Spiral Cut







				7075 Aluminum

				5/32" × 1/8"	3/4"	1/2"	10,000	5	0.005"	2°	0.005"	Forward/Reverse, Start/Stop	9861T214	0000000


				5/32" × 5/32"	7/8"	5/8"	10,000	12	0.01"	3°	0.008"	Forward/Reverse, Start/Stop	9861T312	00000
				5/32" × 3/16"	3/4"	1/2"	10,000	5	0.005"	2°	0.005"	Forward/Reverse, Start/Stop	9861T215	000000
				1/4" × 5/32"	3/4"	3/4"	10,000	20	0.006"	3°	0.006"	Forward/Reverse, Start/Stop	9861T429	00000
				1/4" × 5/32"	7/8"	5/8"	10,000	12	0.01"	3°	0.008"	Forward/Reverse, Start/Stop	9861T319	00000
				1/4" × 5/32"	1"	3/4"	10,000	25	0.01"	3°	0.008"	Forward/Reverse, Start/Stop	9861T527	00000
				1/4" × 5/32"	1 1/2"	1"	10,000	63	0.01"	3°	0.008"	Forward/Reverse, Start/Stop	9861T721	00000
				5/16" × 5/32"	3/4"	3/4"	10,000	20	0.006"	3°	0.006"	Forward/Reverse, Start/Stop	9861T436	00000
				3/8" × 5/32"	1"	1"	10,000	42	0.006"	3°	0.006"	Forward/Reverse, Start/Stop	9861T617	00000

Shaft Collars

Slide these collars from one end of your shaft and tighten the clamping screw. They grip firmly and evenly without marring the shaft, so you can reposition or remove them later.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

Aluminum—One-third the weight of steel and corrosion resistant.

				Clamping Screw
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		5/32"	11/16"	5/16"	Socket Head	1	6435K239	00000


		Aluminum



				5/32"	11/16"	5/16"	Socket Head	1	6157K67	00000

Two-Piece Shaft Collars

For Round Shafts

Attach these collars anywhere along your shaft, which helps when other components are already installed or you can't access the end. They clamp firmly and evenly without marring the shaft, so you can reposition or remove collars later.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.

Aluminum—One-third the weight of steel and corrosion resistant.

				Clamping Screw		For Round Shafts
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		5/32"	11/16"	5/16"	Socket Head	2	6436K313	000000


		303 Stainless Steel



				5/32"	11/16"	5/16"	Socket Head	2	6436K413	00000


				Aluminum



						5/32"	5/8"	5/16"	Socket Head	2	6436K513	00000

Set Screw Shaft Collars

Slide these traditional collars from one end of the shaft and tighten the set screw. They dig into the shaft for a secure hold, but one that leaves a gouge. For maximum holding power, make sure the set screw is harder than the shaft.

Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.

Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.

303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.

316 Stainless Steel—More corrosion resistant than 303 stainless steel collars. These collars withstand salt water and harsh chemicals, such as bleach, chlorine, and phosphoric acid.

Aluminum—One-third the weight of steel and corrosion resistant.

				Set Screw
	For Shaft Dia.	OD	Wd.	Type	No. Included		Each
Black-Oxide Carbon Steel



		5/32"	7/16"	1/4"	Hex Socket	1	9414T4	00000


		Zinc-Plated Carbon Steel



				5/32"	7/16"	1/4"	Hex Socket	1	6432K73	0000


				303 Stainless Steel



						5/32"	7/16"	1/4"	Hex Socket	1	6462K73	0000


						316 Stainless Steel



								5/32"	7/16"	1/4"	Hex Socket	1	9943K14	00000


								Aluminum



										5/32"	7/16"	1/4"	Hex Socket	1	9946K3	00000