Bushings for 7mm Shafts | McMaster-Carr

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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

Lubricant

Shaft Type

Dynamic Radial Load Capacity @ Speed

Bearing Type

Flange OD

Performance

For Load Direction

Combined Radial and Thrust

Color

Thickness

Width

Maximum Temperature

Flange Thickness

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

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

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38 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

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

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

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

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

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

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

Set Screw Flexible Shaft Couplings


Hubs, Split Spider, and Retaining Ring Shown Assembled	(Each Component Sold Separately)

Hubs and Spider Shown Assembled	(Each Component Sold Separately)

Each hub includes a set screw (unless noted), which bites into your shaft to hold the coupling in place. Also known as Lovejoy® couplings, these three-piece couplings have a spider-shaped cushion between two hubs to reduce shock and handle minor shaft misalignment.

A complete coupling consists of two hubs and one spider, or two hubs, one split spider, and one retaining ring (all components sold separately). Split spiders are easier to install and replace than standard spiders because there’s no need for tools or removing your hubs. Twist-lock them in place using a retaining ring.

Buna-N—Buna-N spiders provide good vibration damping and chemical resistance.

Hytrel—Hytrel spiders provide fair vibration damping and excellent chemical resistance.

Hubs							Buna-N Spiders								Hytrel Spiders
									Misalignment Capability								Misalignment Capability
Overall Lg., mm	OD, mm	For Shaft Type	For Rotary Motion	For Shaft Dia., mm		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F	Spider Material		Each







			Steel Hubs

			44	27	Round	Forward/Reverse, Start/Stop	7	6133N12	00000	18,000	26	0.015"	1°	-40 to 212	Buna-N	6408K84	00000	18,000	50	0.015"	0.5°	-55 to 245	Hytrel	6408K91	000000

Clamping Vibration-Damping Precision Flexible Shaft Couplings


	(Each Component Sold Separately)

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. Good for precision motor and pump applications, the spider-shaped cushion reduces shock and compensates for minor shaft misalignment. Couplings allow zero backlash (no play).

A complete coupling consists of two hubs and one spider (each component sold separately). Hubs are lightweight, corrosion-resistant aluminum. Spiders are polyurethane for fair vibration damping and good chemical resistance.

Hubs							Durometer 98A Polyurethane Spiders							Durometer 92A Polyurethane Spiders							Durometer 85A Polyurethane Spiders
									Misalignment Capability							Misalignment Capability							Misalignment Capability
Overall Lg.	OD	For Shaft Type	For Rotary Motion	For Shaft Dia., mm		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F		Each







			2024 Aluminum Hubs

			1 7/64"	3/4"	Round	Forward/Reverse, Start/Stop	7	9845T1	000000	8,000	30	0.003"	0.8°	0 to 180	9845T11	000000	8,000	18	0.004"	0.9°	0 to 180	9845T12	000000	8,000	10	0.005"	1°	0 to 180	9845T13	000000


			1 13/32"	1"	Round	Forward/Reverse, Start/Stop	7	9845T2	00000	8,000	150	0.003"	0.8°	0 to 180	9845T14	00000	8,000	58	0.005"	0.9°	0 to 180	9845T15	00000	8,000	30	0.006"	1°	0 to 180	9845T16	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.

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

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

High-Speed Servomotor Precision Flexible Shaft Couplings

Connect shafts and ball screws to high-speed servomotors and stepper motors—these shaft couplings handle four times more speed than standard servomotor couplings. They’re often found on high-torque motors that frequently start and stop, such as those used with packaging machines, press brakes, and semiconductor manufacturing equipment.

With aluminum hubs joined by a flexible fluoroelastomer or Buna-N core, these shaft couplings dampen vibration and adjust for misalignment. When machines accelerate and decelerate quickly, these couplings remain stiff to maintain accuracy and repeatability, which prevents equipment from moving out of place. They also resist backlash, meaning all of the turning force from the motor is passed on to the connected shaft. The core resists water, petroleum-based chemicals, and inorganic acids while also insulating bearings, encoders, and other shaft components from stray electric current. Clamping screws provide hold without marring shafts; they’re useful in applications where shafts are frequently assembled and disassembled.

						Misalignment Capability
	For Shaft Diameter	Overall Lg.	OD	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Axial	For Rotary Motion		Each
2017 Aluminum with Fluoroelastomer Center



		5 mm × 7 mm	1 1/32"	3/4"	30,000	18	0.006"	1.5°	0.008"	Forward/Reverse, Start/Stop	6853N11	000000


		6 mm × 7 mm	1 1/32"	3/4"	30,000	18	0.006"	1.5°	0.008"	Forward/Reverse, Start/Stop	6853N112	00000

Set Screw Vibration-Damping Precision Flexible Shaft Couplings


(Each Component Sold Separately)	Components of a Coupling Shown Assembled

The included set screw holds the coupling in place. Good for precision motor and pump applications, the spider-shaped cushion reduces shock and compensates for minor shaft misalignment. Couplings allow zero backlash (no play).

Hubs							Durometer 98A Polyurethane Spiders							Durometer 92A Polyurethane Spiders							Durometer 85A Polyurethane Spiders
									Misalignment Capability							Misalignment Capability							Misalignment Capability
Overall Lg., mm	OD, mm	For Shaft Type	For Rotary Motion	For Shaft Dia., mm		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F		Each	Max. Rotation Speed, rpm	Max. Torque, in·lbf	Parallel	Angular	Temp. Range, ° F		Each







			2024 Aluminum Hubs

			27	19	Round	Continuous, Forward/Reverse, Start/Stop	7	9939T32	000000	8,000	30	0.003"	0.8°	0 to 180	9845T11	000000	8,000	18	0.004"	0.9°	0 to 180	9845T12	000000	8,000	10	0.005"	1°	0 to 180	9845T13	000000

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