Couplings for 18mm Shafts

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System of Measurement

Shaft Diameter

6.000 mm to 10.000 mm

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6.000 mm to 20.000 mm

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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

Shaft Type

Construction

Material

Component

Keyway Width

For Shaft Misalignment Type

Shaft Mount Type

Overall Length

For Rotary Motion

Keyway Depth

Flexible Shaft Coupling Type

Length

Set Screw Material

Number of Set Screws Included

Shaft Coupling Flexibility

Flexible

Rigid

Clamping Screw Material

Stainless Steel

Steel

Maximum Torque

Less than 10,000 in·lbf

Not Rated

Maximum Rotation Speed

RoHS

Compliant with Exemptions

REACH

Compliant

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

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70 Products

High-Torque Spider Couplings

With a thick split spider in the center, these transmit higher torque than standard split spider couplings. Connect them to pumps, mixers, and other equipment that generates heavy torque. The spider also prevents metal-to-metal contact between the hubs, so there's no need for lubrication. For a complete coupling, select two hubs, one split spider, and one split spider cover. Choose components with the same trade size to ensure they'll fit together.

Hubs

The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.

303 Stainless Steel—These corrosion-resistant hubs withstand mild cleaning solutions.

Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.

	Shaft Mount Type	Choose a Shaft Dia.		Each
Keyed







	303 Stainless Steel

	2"	QF5	2 13/16"	Set Screw	18 mm	3565N1	000000

Split Spiders

Unlike standard spiders, you can install these without using tools, removing hubs, or realigning shafts. Hold them in place with a retaining ring.

Urethane Rubber—Tough, with plastic-like tear resistance. Higher-durometer spiders are more rigid for more precise positioning, but they absorb less vibration.

					Misalignment Capability
	For Hub OD	Shaft Coupling Trade Size	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	Temp. Range, ° F		Each
Durometer 48D (Medium Soft) Urethane Rubber



		2"	QF5	12,000	375	0.02"	2°	0.078"	-60 to 212	3565N41	000000


		Durometer 60D (Medium) Urethane Rubber



				2"	QF5	12,000	815	0.02"	2°	0.078"	-60 to 212	3565N43	00000


				2"	QF5	12,000	815	0.02"	2°	0.078"	-60 to 350	3565N42	00000

Split Spider Covers

Hold split spiders in place to secure the two hubs.

303 Stainless Steel—These corrosion-resistant hubs withstand mild cleaning solutions.

	For Hub OD		Each
303 Stainless Steel



	QF5	2"	3565N61	000000

Spider Couplings

With two hubs gripping a rubbery spider in the center, these couplings damp vibration and transfer torque while flexing to handle misaligned shafts. The metal hubs never touch each other, so there's no need for lubrication. Also known as Lovejoy® couplings. For a complete coupling, select two hubs and one spider or two hubs, one split spider, and one retaining ring. Choose components with the same trade size to ensure they'll fit together.

Hubs

The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.

Keyed—Mount onto shafts with a matching keyway.

Iron—Best for dry environments, since moisture will cause these hubs to rust.

Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.

	Shaft Mount Type	Choose a Shaft Dia.		Each
Keyed







	Iron

	2 7/64"	L090	2 5/32"	Set Screw	18 mm	6408K14	000000

Spiders

A flexible center fits between hubs to enable torque transfer and damp vibration.

Buna-N—Highly tear resistant and the best choice to absorb vibration and shock.

Polyurethane Rubber—Resist tearing better than Buna-N and provide a balance of stiffness and moderate vibration damping.

Hytrel—Stiffer than Buna-N, these spiders transmit torque from one shaft to the other almost fully but offer minimal vibration damping.

					Misalignment Capability
	For Hub OD	Shaft Coupling Trade Size	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular		Each
Buna-N



		2 7/64", 54 mm	L090, L095	9,000	140	0.015"	1°	6408K75	000000


		Polyurethane Rubber



				2 7/64"	L090, L095	3,600	210	0.015"	1°	2410K13	00000


				Hytrel



						2 7/64", 54 mm	L090, L095	3,600	400	0.015"	0.5°	6408K95	00000

Split Spiders

Unlike standard spiders, you can install these without using tools, removing hubs, or realigning shafts. Hold them in place with a retaining ring.

Polyurethane Rubber—Provide fair vibration damping and tear resistance.

					Misalignment Capability
	For Hub OD	Shaft Coupling Trade Size	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F		Each
Polyurethane Rubber



		2 7/64"	L090, L095	9,200	670	0.03"	2°	-30 to 200	2393K33	000000

Retaining Rings

Press the pins on these rings into the grooves on a split spider. Then, twist to lock the spider in place and transmit torque between shafts.

347 Stainless Steel—Provide good corrosion resistance.

	For Hub OD		Each
347 Stainless Steel



	L090, L095	2 7/64"	2393K23	000000

Precision Spider Couplings

Position shafts and handle misalignment on precision motors, pumps, and other equipment that requires highly controlled movements. These couplings have a hard, rubber spider to fully transfer torque from one shaft to the other (zero backlash). They're also known as precision jaw couplings. Choose components with the same trade size to ensure they'll fit together.

Hubs

The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.

Aluminum—Lightweight and corrosion resistant.

Clamp-On Shaft Mount—Grip shafts evenly without marring them and hold tighter than set screws. Tighten the clamping screws to secure.

Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.

	Shaft Mount Type	Choose a Shaft Dia.		Each
Round







	Aluminum

	41	26/41	53	Set Screw	18 mm	9939T35	000000


	41.3	26/41	53	Clamp On	18 mm	9845T54	00000


	Keyed







					Aluminum

					41.3	26/41	53	Clamp On	18 mm	9845T59	00000


					50	32/51	61	Set Screw	18 mm	9939T42	000000

Spiders

A flexible center fits between hubs to enable torque transfer and damp vibration.

Polyurethane Rubber—Provide a balance of stiffness and moderate vibration damping. Higher-durometer spiders are more rigid for more precise positioning, but they absorb less vibration.

					Misalignment Capability
	For Hub OD	Shaft Coupling Trade Size	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular		Each
Durometer 92A (Extra Hard) Polyurethane Rubber



		1 5/8", 41 mm, 41.3 mm	26/41	8,000	190	0.006"	0.9°	9845T22	000000


		2", 50 mm, 50.8 mm	32/51	8,000	440	0.006"	0.9°	9845T25	00000


		Durometer 98A (Extra Hard) Polyurethane Rubber



				1 5/8", 41 mm, 41.3 mm	26/41	8,000	330	0.004"	0.8°	9845T21	00000


				2", 50 mm, 50.8 mm	32/51	8,000	550	0.005"	0.8°	9845T24	00000

Sleeve Couplings

Transmit high torque with a sleeve that locks into the teeth of the hubs. The sleeve is strong and flexible enough to compensate for some misalignment, and it's lightweight to move with less energy. For a complete coupling, select two hubs and one sleeve. Choose components of the same trade size to ensure they'll fit together.

Hubs

The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.

Steel—Best for dry environments, since moisture will cause these hubs to rust.

Keyed—Mount onto shafts with a matching keyway.

Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.

For Shaft Type	Shaft Mount Type	Choose a Shaft Dia.		Each







Steel

44.7	GDX M024	52.6	Keyed	Set Screw	18 mm	6247K53	000000

Sleeves

Install these cylindrical sleeves over the hubs.

Nylon—Strong and durable but prone to swelling when exposed to moisture.

					Misalignment Capability
	For Hub OD, mm	Shaft Coupling Trade Size	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial		Each
Nylon



		44.7	GDX M024	10,600	530	0.016"	1°	0.04"	6247K83	000000

High-Parallel-Misalignment Slotted Disc Couplings

Unlike couplings that flex to handle offset shafts, these have a slotted center disc that allows shafts to slide independently to compensate for parallel misalignment. The plastic center disc also helps transmit torque while preventing metal-to-metal contact between hubs, so there's no lubrication required. Also known as Oldham couplings. For a complete coupling, select two hubs and one disc. Choose components of the same trade size to ensure they'll fit together.

Hubs

The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.

Aluminum—Lightweight and corrosion resistant.

Clamp-On Shaft Mount—Grip shafts evenly without marring them and hold tighter than set screws. Tighten the clamping screws to secure.

For Shaft Type	Shaft Mount Type	Choose a Shaft Dia.		Each







Aluminum

1 5/8"	26/41	2"	Round	Clamp On	18 mm	9889T4	000000

Discs

With two perpendicular slots (one on each side), these discs allow shafts to slide, adjusting for parallel misalignment.

Acetal—Provide a balance of stiffness and flexibility while withstanding high torque. The best plastic discs for damp and wet environments, these won't swell or lose their strength if exposed to moisture.

Nylon—Keep these wear-resistant discs dry, since they'll swell and weaken if exposed to moisture.

PEEK—Stronger, stiffer, and more wear resistant than nylon and acetal discs.

					Misalignment Capability
	For Hub OD	Shaft Coupling Trade Size	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial		Each
Acetal



		1 5/8"	26/41	4,500	130	0.01"	0.5°	0.006"	59985K65	000000


		Nylon



				1 5/8"	26/41	4,500	32	0.01"	0.5°	0.006"	59985K95	00000


				PEEK



						1 5/8"	26/41	4,500	130	0.01"	0.5°	0.006"	59985K714	00000

Servomotor Precision Disc Couplings

With rigid, bolted-on discs, these couplings withstand high torque from starts, stops, and reversals. Use them when accurate, repeatable positioning is a must. The double-disc design accommodates misalignment and smoothly transmits torque without any loss of force (zero backlash).

Aluminum with 304 Stainless Steel Disc—Lightweight hubs with corrosion-resistant discs.

Clamp-On Shaft Mount—Grip shafts evenly without marring them and hold tighter than set screws. Tighten the clamping screws to secure.

					Misalignment Capability
Choose a Shaft Dia.	OD	Overall Lg.	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	For Shaft Type	Shaft Mount Type		Each







			Aluminum with 304 Stainless Steel Disc

			3/8" × 18 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K622	0000000


			1/2" × 18 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K633	000000
			5/8" × 18 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K644	000000
			3/4" × 18 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K655	000000
			1" × 18 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K665	000000
			16 mm × 18 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K674	000000
			17 mm × 18 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K682	000000
			18 mm × 18 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K688	000000
			18 mm × 19 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K689	000000
			18 mm × 20 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K691	000000
			18 mm × 22 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K692	000000


			18 mm × 24 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K693	000000
			18 mm × 25 mm	2 7/32"	2 23/64"	10,000	220	0.011"	1°	0.031"	Round	Clamp On	2764K694	000000

Strong-Grip Clamping Rigid Shaft Couplings

These couplings have the gripping strength to handle higher torque than most other couplings. Couplings clamp evenly around the shaft to create a mar-free hold. Slide onto the end of your shaft and tighten the clamping screws to secure. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.

Steel

For Keyed Shafts

	Overall Lg., mm	OD, mm	Max. Rotation Speed	Max. Torque	For Rotary Motion		Each
For Keyed Shafts



	18	60	36	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T37	0000000

Strong-Grip Two-Piece Rigid Shaft Couplings

These couplings have the gripping strength to handle higher torque than most other couplings. Install them anywhere on a shaft without removing components or having access to the ends of the shaft. Tighten the clamping screws to secure. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.

Steel

For Keyed Shafts

	Overall Lg., mm	OD, mm	Max. Rotation Speed	Max. Torque	For Rotary Motion		Each
For Keyed Shafts



	18	60	36	Not Rated	Not Rated	Forward/Reverse, Start/Stop, Continuous	9800T25	0000000

Flange-Mount Shaft Collars

Use the tapped and unthreaded holes on the flange to mount components as needed. To install, slide these collars from one end of your shaft and tighten the clamping screws. The collars grip firmly and evenly without marring the shaft, so you can reposition or remove them later. Collars with keyways have a standard ANSI keyway to lock in place shafts, keys, and key stock.

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.

				Flange, mm		Keyway, mm			Clamping Screw			Mounting Holes		Unthreaded Mounting Holes
	For Shaft Dia., mm	OD, mm	Wd., mm	OD	Thk.	Wd.	Dp.	For Shaft Type	Type	No. Included	Mounting Fasteners Included	Thread Size	No. of	Dia., mm	No. of		Each
Black-Oxide Carbon Steel



		18	36	20.64	63	6.85	6	2.8	Keyed	Socket Head	2	No	M5 × 0.8 mm	3	5.4	3	9604T16	0000000


		303 Stainless Steel



				18	36	20.64	63	6.85	6	2.8	Keyed	Socket Head	2	No	M5 × 0.8 mm	3	5.4	3	9624T22	000000


				Aluminum



						18	36	20.64	63	6.85	6	2.8	Keyed	Socket Head	2	No	M5 × 0.8 mm	3	5	3	9723T16	00000

Two-Piece Shaft Collars

For Round Shafts

For Keyed 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.

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.

						For Round Shafts		For Keyed Shafts
				Clamping Screw				Keyway, mm
	For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included		Each	Wd.	Dp.		Each
Black-Oxide Carbon Steel



		18	36	13	Socket Head	2	6063K18	000000	6	2.8	3390N18	000000


		303 Stainless Steel



				18	36	13	Socket Head	2	3369K22	00000	—	—	———	0


				316 Stainless Steel



						18	36	13	Socket Head	2	9652T37	00000	—	—	———	0


						Aluminum



								18	36	13	Socket Head	2	9520T12	00000	—	—	———	0

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.

Blue Passivated Zinc-Plated Carbon Steel—Withstand moisture and mild chemicals better than standard zinc-plated-steel collars. The blue passivated finish makes it easy to identify metric collars at a glance.

Carbon Steel—Strong and easy to machine. Use in dry environments, since moisture will cause steel to rust.

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

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



		18	32	14	Hex Socket	1	57485K74	00000


		Blue Passivated Zinc-Plated Carbon Steel



				18	32	14	Hex Socket	1	6057N25	0000


				Carbon Steel



						18	32	14	Hex Socket	1	6056N25	0000


						303 Stainless Steel



								18	32	14	Hex Socket	1	57485K36	00000


								18	32	14	Hex Socket	1	6058N25	00000

Plastic Shaft Collars

Lightweight alternatives to metal collars for weight-sensitive applications. 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.

Acetal—Resist swelling when exposed to moisture.

				Clamping Screw
	For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included		Each
Acetal



		18	36	13	Socket Head	1	3761N121	000000

Plastic Two-Piece Shaft Collars

Lightweight alternatives to metal two-piece collars for weight-sensitive applications. Attach these collars anywhere along a shaft when other components are already installed or you can't access the ends. They clamp firmly and evenly without marring the shaft, so you can reposition or remove them later.

Acetal—Resist swelling when exposed to moisture.

				Clamping Screw
	For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included		Each
Acetal



		18	36	13	Socket Head	2	3585N33	000000

Two-Piece Shaft Collars with Wrench Flats

When adjusting or troubleshooting your drive shaft, turn these collars with a wrench to avoid marring or gouging the surface. To install, snap the two pieces together anywhere along the shaft, which helps when other components are attached or you can't access the ends.

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

					Clamping Screw
	For Shaft Dia., mm	OD, mm	Wd., mm	Flat-to-Flat Ht., mm	Type	No. Included		Each
Black-Oxide Carbon Steel



		18	36	13	31	Socket Head	2	9746T217	000000

Face-Mount Shaft Collars

Mount components into the tapped holes on the face of these collars. They slide from one end of a shaft and clamp firmly and evenly to prevent marring, 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.

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

				Clamping Screw			Mounting Holes
	For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included	Mounting Fasteners Included	Thread Size	No. of		Each
Black-Oxide Carbon Steel



		18	36	13	Socket Head	1	No	M5 × 0.8 mm	2	5633T13	000000


		303 Stainless Steel



				18	36	13	Socket Head	1	No	M5 × 0.8 mm	2	5705T13	00000

Hinged Shaft Collars

Combine the versatility of a two-piece collar with the no-fuss installation of a one-piece design. These hinged collars swing open and shut onto your shaft when other components are already attached or you can't access the ends. The clamping screw is captive so it won't fall out, and it aligns itself in the hole when the collar swings shut.

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.

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



		18	36	13	Socket Head	1	5706T22	000000


		303 Stainless Steel



				18	36	13	Socket Head	1	5719T13	00000

Shaft Collars with Lever

Ideal for frequent setup changes in tight spaces, these collars tighten with a lever instead of a screwdriver. Slide them from one end of your shaft and turn the lever like a ratchet to secure. To reposition or remove collars later, use the lever to loosen the screw and release the hold.

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.

Black Anodized Aluminum—One-third the weight of steel and more corrosion resistant than unfinished aluminum.

				Lever, mm		Clamping Screw
	For Shaft Dia., mm	OD, mm	Wd., mm	Ht.	Lg.	Type	No. Included		Each
Black-Oxide Carbon Steel



		18	36	13	35	30	Socket Head	1	3466N3	000000


		303 Stainless Steel



				18	36	13	35	30	Socket Head	1	3466N66	00000


				Black Anodized Aluminum



						18	36	13	35	30	Socket Head	1	3466N102	00000

Two-Piece Shaft Collars with Lever

Skip the screwdriver—tighten these collars by turning the lever like a ratchet instead. They're ideal for packing, printing, label-feeding, and other equipment requiring frequent setup changes in tight spaces. Attach them anywhere along your shaft, which helps when other components are already installed or you can't access the ends. To reposition or remove collars later, use the lever to loosen the screw and release the hold.

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.

Black Anodized Aluminum—One-third the weight of steel and more corrosion resistant than unfinished aluminum.

				Lever, mm		Clamping Screw
	For Shaft Dia., mm	OD, mm	Wd., mm	Ht.	Lg.	Type	No. Included		Each
Black-Oxide Carbon Steel



		18	36	13	35	30	Socket Head	2	3553N138	000000


		303 Stainless Steel



				18	36	13	35	30	Socket Head	2	3553N238	00000


				Black Anodized Aluminum



						18	36	13	35	30	Socket Head	2	3553N338	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.

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.

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

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



		18	38	13	Socket Head	1	57445K72	000000


		Zinc-Plated Carbon Steel



				18	36	13	Socket Head	1	57445K453	00000


				303 Stainless Steel



						18	38	13	Socket Head	1	9616T23	00000


						Aluminum



								18	36	13	Socket Head	1	9506T8	00000