Bushings for 7mm Shafts | McMaster-Carr

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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

12.500 mm to 40.000 mm

Material

Length

Plain Bearing Type

For Housing ID

Shell Material

Shaft Type

Dynamic Radial Load Capacity @ Speed

Bearing Type

Flange OD

For Load Direction

Combined Radial and Thrust

Performance

Shaft Mount Type

Color

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

Minimum Temperature

REACH

RoHS

Compliant with Exemptions

DFARS Specialty Metals

Exempt

Thickness

0.5 mm

1.5 mm

Export Control Classification Number (ECCN)

Maximum Temperature

Construction

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55 Products

Dry-Running Metal-Reinforced Plastic Sleeve Bearings

Combine slippery plastic with the strength of metal. The PTFE core is naturally slippery, so you’ll never have to add lubricant. These bearings also keep your workspace clean with no lubricant to drip or flake and attract dust. Compared to all-metal bearings, they are lighter.

With no moving parts, sleeve bearings are the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.

Bronze-Backed PTFE with Steel Shell—A good all-around, economical choice. Although these bearings are stronger than aluminum, they can only be used in dry environments where corrosion is not a concern.

	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Temp. Range, ° F		Each
Bronze-Backed PTFE with Steel Shell



	7	9	10	620 lb. @ 120 rpm	-320 to 530	6679K34	00000

Dry-Running Flanged Sleeve Bearings

Made of naturally slippery plastic so you’ll never have to add lubricant. They’re ideal for clean environments where you need to prevent oil drips or graphite flakes. Compared to metal bearings, they are lighter and will never rust.

Flanged sleeve bearings combine a sleeve and thrust bearing in one. The flange supports thrust loads and prevents the bearing from being pushed out of place. The sleeve is the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.

Ultra-Chemical-Resistant PTFE—The most chemical-resistant bearings we offer. PTFE is unaffected by the harsh fluids that other plastics can't handle, including all strong acids and bases. PTFE also reduces friction better than nylon but is not as strong.

High-Load PEEK—Get the strength of reinforced PTFE without compromising on heat resistance. With no additives, such as polyester fabric, PEEK bearings won’t melt at high temperatures. They’re also nearly as slippery and chemical resistant as plain PTFE.

	For Housing ID, mm	Lg., mm	Flange OD, mm	Flange Thk., mm	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Color	Temp. Range, ° F	Food Industry Std.		Each
Ultra-Chemical-Resistant PTFE



	7	11	8	15	2	10 lb. @ 120 rpm	11 lb. @ 120 rpm	White	-200 to 450	FDA Compliant 21 CFR 177.1550	2706T518	000000


	High-Load PEEK



			7	11	8	15	2	140 lb. @ 120 rpm	160 lb. @ 120 rpm	Beige	-20 to 450	—	6627K508	00000

Oil-Embedded Flanged Sleeve Bearings

Install and forget these self-lubricating bearings. All are made from porous metal and saturated with oil to reduce maintenance and downtime. A good all-around choice, they are used in everything from palm-sized fans in electronics to tire-sized pulleys. Although these bearings will work in most conditions, oil may drip away if temperatures get too high. Consider a graphite-lubricated bearing for higher temperatures or places where you can’t afford the mess. All are fabricated, lubricated, and inspected in the U.S.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

High-Load 863 Iron Copper—Iron makes these bearings harder, stronger, and more resistant to sudden starts and stops than 841 bearing bronze. However, they operate at slower speeds. The increased iron content makes these bearings appear silver.

Synthetic Oil Base—A high-quality lubricant makes all the difference. Synthetic oil is less sensitive to temperature changes than mineral oil, so it won't get runny and leak away at higher temperatures.

	For Housing ID, mm	Lg., mm	Flange OD, mm	Flange Thk., mm	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Base Oil	Temp. Range, ° F		Each
841 Bearing Bronze



	7	11	8	15	2	170 lb. @ 120 rpm	420 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6659K67	000000


	High-Load 863 Iron Copper



			7	11	8	15	2	340 lb. @ 120 rpm	400 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2938T758	0000

Oil-Embedded Sleeve Bearings

With no moving parts, sleeve bearings are the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Base Oil	Temp. Range, ° F		Each
841 Bearing Bronze



	7	11	8	170 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6658K67	00000

Dry-Running Sleeve Bearings

With no moving parts, sleeve bearings are the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.

Ultra-Low-Friction Rulon J—These bearings glide effortlessly for applications with frequent starts and stops, such as conveyor systems.

								Each
	For Shaft Dia., mm	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Color	Temp. Range, ° F		1-24	25-99	100-Up
Ultra-Low-Friction Rulon J



		7	11	8	65 lb. @ 120 rpm	Gold	-400 to 550	6377K515	000000	000000	000000

Ultra-Low-Friction Oil-Embedded Sleeve Bearings

Our slipperiest metal bearings, these are ideal for machinery with frequent starts and stops, such as conveyors. With nonstick PTFE particles added to the oil, they reduce friction to minimize wear and heat, so equipment runs more efficiently and lasts longer. All are fabricated, lubricated, and inspected in the U.S.

With no moving parts, sleeve bearings are the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Base Oil	Lubricant Additive	Temp. Range, ° F	Specs. Met		Each
841 Bearing Bronze



	7	11	8	170 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	ASTM B438	1688K128	00000

Ultra-Low-Friction Oil-Embedded Flanged Sleeve Bearings

	For Housing ID, mm	Lg., mm	Flange OD, mm	Flange Thk., mm	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Base Oil	Lubricant Additive	Temp. Range, ° F		Each
High-Load 863 Iron Copper



	7	11	8	15	2	340 lb. @ 120 rpm	400 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	7119N122	000000

Oil-Embedded Thrust Bearings

Our simplest-to-use thrust bearings, with no moving parts and no need to lubricate. Their porous surface releases oil over time, so you can install and forget them. While they run in most conditions, oil may drip away if temperatures climb too high. For extremely hot environments, consider graphite-lubricated bearings. All are fabricated, lubricated, and inspected in the U.S.

841 Bearing Bronze—A balance of strength and speed makes these bearings a good choice for most applications. Also known as SAE 841 bearing bronze.

	OD, mm	Thk., mm	Dynamic Thrust Load Cap. @ Speed	Base Oil	Temp. Range, ° F		Each
841 Bearing Bronze



	7	14	1.5	500 lb. @ 120 rpm	Synthetic Oil	-35 to 300	2011N139	00000

Dry-Running Thrust Bearings

Made of naturally slippery plastic so there's no lubricant to maintain or make a mess. These bearings are ideal for spic-and-span spaces since oil won't drip off, wash out, or collect dust over time. They'll also never rust.

Moisture-Resistant Plastic Blend—Similar to acetal, these bearings won't warp or swell from water or humidity.

	OD, mm	Thk., mm	Dynamic Thrust Load Cap. @ Speed	Color	Temp. Range, ° F		Each
Moisture-Resistant Plastic Blend



	7	12	0.5	12 lb. @ 120 rpm	Gray	-40 to 260	8920N33	00000

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.

Round—Hubs for the standard shaft type.

Steel—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	For Shaft Diameter		Each
Round







	Steel

	27	L050	44	Set Screw	7 mm	6133N12	00000

Spiders

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

Buna-N—Best choice for vibration damping and shock absorption with the lowest stiffness and good tear resistance.

Hytrel—Most direct torque transfer with the highest stiffness and least vibration damping.

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



		1 5/64", 27 mm	L050	18,000	26	0.015"	1°	6408K84	00000


		Hytrel



				1 5/64", 27 mm	L050	18,000	50	0.015"	0.5°	6408K91	00000

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	For Shaft Diameter		Each
Round







	Aluminum

	3/4"	12/19	1 7/64"	Clamp On	7 mm	9845T1	000000


	1"	16/25	1 13/32"	Clamp On	7 mm	9845T2	00000
	19 mm	12/19	27 mm	Set Screw	7 mm	9939T32	00000

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 85A (Hard) Polyurethane Rubber



		3/4", 19 mm	12/19	8,000	10	0.005"	1°	9845T13	000000


		1", 25 mm, 25.4 mm	16/25	8,000	30	0.006"	1°	9845T16	00000


		Durometer 92A (Extra Hard) Polyurethane Rubber



				3/4", 19 mm	12/19	8,000	18	0.004"	0.9°	9845T12	00000


				1", 25 mm, 25.4 mm	16/25	8,000	58	0.005"	0.9°	9845T15	00000


				Durometer 98A (Extra Hard) Polyurethane Rubber



						3/4", 19 mm	12/19	8,000	30	0.003"	0.8°	9845T11	00000


						1", 25 mm, 25.4 mm	16/25	8,000	150	0.003"	0.8°	9845T14	00000

Oil-Embedded Flanged Sleeve Bearings for Food and Beverage

These lead-free bearings are infused with a food-grade oil that is odorless, colorless, tasteless, and safe for incidental contact with food. They’re often used in food and beverage processing, packing, and handling equipment. All are made from porous metal and saturated with oil to reduce maintenance and downtime. If you need a bearing rated for direct contact with food, consider dry-running flanged sleeve bearings for food and beverage. All are fabricated, lubricated, and inspected in the U.S.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

	For Housing ID, mm	Lg., mm	Flange OD, mm	Flange Thk., mm	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Base Oil	Temp. Range, ° F	Food Industry Std.		Each
841 Bearing Bronze



	7	11	8	15	2	170 lb. @ 120 rpm	420 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	3746K53	000000

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.

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
Blue Passivated Zinc-Plated Carbon Steel



		7	12	8	Hex Socket	1	6057N15	00000


		Carbon Steel



				7	12	8	Hex Socket	1	6056N15	0000


				303 Stainless Steel



						7	12	8	Hex Socket	1	6058N15	0000

Oil-Embedded Sleeve Bearings for Food and Beverage

These lead-free bearings are infused with a food-grade oil that is odorless, colorless, tasteless, and safe for unintended contact with food. They’re often used in food and beverage processing, packing, and handling equipment. All are made from porous metal and saturated with oil to reduce maintenance and downtime. If you need a bearing rated for contact with food, consider dry-running sleeve bearings for food and beverage. All are fabricated, lubricated, and inspected in the U.S.

With no moving parts, sleeve bearings are the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Base Oil	Temp. Range, ° F	Specs. Met		Each
841 Bearing Bronze



	7	11	8	170 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	7095K128	000000

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.

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



		7	18	9	Socket Head	1	57445K411	00000


		303 Stainless Steel



				7	18	9	Socket Head	1	9616T411	00000

Precision Beam Couplings


Spiral Cut	Parallel Cut

Machined with slits, these one-piece couplings flex to transfer full torque (zero backlash) and compensate for tiny misalignments.

Spiral Cut—Long slits along the surface help the coupling flex and handle greater misalignment than parallel cut couplings. They're also less rigid, so they're best used with light duty machinery, such as encoders and stepper drives. Also known as helical beam couplings.

Parallel Cut—With short, intermittent slits, these couplings are more rigid and handle more torque and speed than spiral cut couplings. However, they don't handle misalignment as well. Use them in linear test systems, scientific instruments, and other high-torque applications.

303 Stainless Steel—More corrosion resistant and stronger than aluminum couplings, these withstand mild cleaning solutions, such as acetone and ammonia.

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.

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







				303 Stainless Steel

				7 mm × 10 mm	25	30	6,000	40	0.38	3°	0.25	Round	Clamp On	2463K313	0000000




						Aluminum

						7 mm × 1/4"	25	30	6,000	27	0.38	3°	0.25	Round	Clamp On	2464K18	00000


						7 mm × 3/8"	25	30	6,000	27	0.38	3°	0.25	Round	Clamp On	2464K24	00000
						7 mm × 6 mm	25	30	6,000	27	0.38	3°	0.25	Round	Clamp On	2463K25	00000
						7 mm × 7 mm	25	30	6,000	27	0.38	3°	0.25	Round	Clamp On	2463K26	00000
						8 mm × 7 mm	25	30	6,000	27	0.38	3°	0.25	Round	Clamp On	2463K27	00000
						9 mm × 7 mm	25	30	6,000	27	0.38	3°	0.25	Round	Clamp On	2463K31	00000
						10 mm × 7 mm	25	30	6,000	27	0.38	3°	0.25	Round	Clamp On	2463K35	00000


						Parallel Cut







										Aluminum

										7 mm × 5 mm	16	19.8	10,000	11.1	0.1	2.5°	0.4	Round	Clamp On	8011N228	000000


										7 mm × 5 mm	20	21.5	7,500	21.7	0.12	3°	0.5	Round	Clamp On	8011N251	000000
										7 mm × 7 mm	16	19.8	10,000	11.1	0.1	2.5°	0.4	Round	Clamp On	8011N23	000000
										10 mm × 7 mm	25	34	5,000	34.5	0.4	3°	0.7	Round	Clamp On	8011N173	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.

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

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	For Shaft Diameter		Each







Aluminum

3/4"	12/19	1"	Round	Clamp On	7 mm	9889T1	000000




		303 Stainless Steel

		3/4"	12/19	1"	Round	Clamp On	7 mm	9889T82	00000

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



		3/4"	12/19	4,500	20	0.008"	0.5°	0.004"	59985K62	00000


		Nylon



				3/4"	12/19	4,500	5	0.008"	0.5°	0.004"	59985K92	00000


				PEEK



						3/4"	12/19	4,500	20	0.008"	0.5°	0.004"	59985K711	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



		7	18	9	Socket Head	1	3761N116	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



		7	18	9	Socket Head	2	3585N27	000000

Servomotor Precision Bonded Couplings

With a bonded rubber center, these couplings damp vibration and accommodate misalignment on servomotors. The center and the lightweight aluminum hubs transfer torque fully (zero backlash) between shafts that start and stop frequently or accelerate at high speeds. They're often used on packaging machines, press brakes, and machinery for semiconductor production.

Aluminum with Fluoroelastomer Center—Lightweight and corrosion-resistant hubs bonded with a flexible rubber center handle corrosive environments, vibration, and shaft misalignment.

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

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







			Aluminum with Fluoroelastomer Center

			5 mm × 7 mm	3/4"	1 1/32"	30,000	18	0.006"	1.5°	0.008"	Round	Clamp On	6853N11	000000


			6 mm × 7 mm	3/4"	1 1/32"	30,000	18	0.006"	1.5°	0.008"	Round	Clamp On	6853N112	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.

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

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.

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

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



		7	18	9	Socket Head	2	6063K27	000000


		Zinc-Plated Carbon Steel



				7	18	9	Socket Head	2	5731N12	00000


				316 Stainless Steel



						7	18	9	Socket Head	2	9652T33	00000


						Black Anodized Aluminum



								7	18	9	Socket Head	2	3731N15	00000