9mm Housing ID Bearings | McMaster-Carr

Install and forget these self-lubricating bearings. Their lubricant is a solid material that fills the space between the balls and releases oil over time, so you'll never need to add more.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

Corrosion-Resistant 440C Stainless Steel—Combine the strength of steel with the corrosion resistance of stainless steel. These bearings won't degrade from water or mild chemicals, such as the ammonia in cleaning solutions. However, they'll weaken when exposed to salt water and harsh chemicals, such as bleach.

ABEC Rating—Bearings with an ABEC rating meet industry tolerance standards established by the Annular Bearing Engineers Committee (ABEC). They're rated on a scale from 1 to 9. The higher the rating, the tighter the tolerance. Bearings rated ABEC 1 or 3 are precise enough for most applications. If your application consistently runs at high speeds or requires high accuracy, consider bearings rated ABEC 5 or higher, since they generate less friction and heat.

							Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Open







				Corrosion-Resistant 440C Stainless Steel

				3	9	3	1	65	50,000	-10	200	Standard	603	4668K107	000000


				4	9	2.5	1	80	46,000	-10	200	Standard	684	4668K113	00000


				Sealed







								Corrosion-Resistant 440C Stainless Steel

								4	9	4	1	80	46,000	-10	200	Standard	684-2RS	4668K337	00000

Ball Bearings

Shielded

Smoother than smooth—the balls inside these bearings roll nearly friction-free. You’ll often find them on rapidly rotating parts, from the whirring chuck on a power drill to the spinning shaft on an electric motor.

Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.

							Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Shielded







				Corrosion-Resistant 440C Stainless Steel

				5	9	3	5	95	60,000	-40	240	Standard	95-2Z	7804K105	00000

Flanged Ball Bearings

Open

Shielded

Install these bearings inside a housing and they won't budge. The flange presses against the housing wall, so vibration and other sudden forces parallel to the shaft (thrust loads) won't knock them off-kilter.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

				Flange, mm					Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	OD	Thk.	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Open







				Steel

				5	9	2.5	10.2	0.6	3	90	71,000	-50	300	Standard	95	57155K457	000000




						Corrosion-Resistant 440C Stainless Steel

						4	9	2.5	10.3	0.6	3	120	75,000	-50	300	Standard	684	57155K443	00000


						5	9	2.5	10.2	0.6	3	70	71,000	-50	300	Standard	95	57155K458	00000


						Shielded







										Steel

										3	9	5	10.5	1	3	120	66,000	-50	300	Standard	603-2Z	57155K546	00000


										5	9	3	10.2	0.6	3	90	60,000	-50	300	Standard	95-2Z	57155K643	00000




												Corrosion-Resistant 440C Stainless Steel

												5	9	3	10.2	0.6	5	95	60,000	-20	250	Standard	95-2Z	7804K135	0000

Needle-Roller Bearings

Also known as drawn-cup roller bearings, these are our thinnest roller bearings. The outer ring is drawn out to form a lip that holds the bearing together. Bearings take on the shape of their housing and may be oblong prior to installation.

Open Bearing—Open bearings dissipate heat more efficiently than sealed bearings.

				Radial Load Cap., lb.
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	For Shaft Surface Smoothness, Ra, μin	Temp. Range, ° F	Specs. Met		Each
For Radial Load—Open with Steel Ring



		5	9	9	540	440	39,000	Required	8	-40 to 280	DIN 618, ISO 3245	5905K349	00000

Oil-Embedded 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.

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.

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	Dynamic Radial Load Cap. @ Speed	Base Oil	Temp. Range, ° F		Each
841 Bearing Bronze



	6	9	4	70 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6658K119	00000


	6	9	6	110 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6658K725	0000
	6	9	8	145 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6658K121	0000
	6	9	10	185 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6658K726	0000
	6	9	12	220 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6658K122	0000
	6	9	16	290 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6658K123	0000


	High-Load 863 Iron Copper



			6	9	6	220 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2868T415	0000


			6	9	10	370 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2868T313	0000

Ball Bearings for Food and Beverage

Sealed

Food production rolls along smoothly on these bearings. Greased with FDA-compliant lubricant, they’re safe to install on food-processing equipment, such as conveyor belts, so long as they don’t directly touch the food. The lubricant is a solid material that fills the space between the balls and releases oil over time, so you'll never need to add more.

Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.

							Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Food Industry Std.	Bearing Trade No.		Each
Sealed







				Corrosion-Resistant 440C Stainless Steel

				4	9	4	1	140	46,000	-40	200	Standard	FDA Compliant 21 CFR 178.3570	684-2RS	4648K312	000000

Dry-Running 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.

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.

Nylon—The most popular choice, nylon is wear resistant yet economical. Keep in mind, though, that it will swell and weaken when exposed to moisture.

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.

High-Load Moisture-Resistant Rulon LR—Won’t swell in wet or humid places, similar to acetal, but can support higher loads. These bearings also operate smoothly from cryogenic to oven-like temperatures.

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
Nylon



		6	9	4	12 lb. @ 120 rpm	Off-White	-10 to 220	6389K706	000000	00000	00000


		6	9	6	18 lb. @ 120 rpm	Off-White	-10 to 220	6389K707	00000	0000	0000
		6	9	10	31 lb. @ 120 rpm	Off-White	-10 to 220	6389K709	00000	0000	0000
		6	9	12	37 lb. @ 120 rpm	Off-White	-10 to 220	6389K71	00000	0000	0000
		6	9	16	50 lb. @ 120 rpm	Off-White	-10 to 220	6389K711	00000	00000	0000


		High-Load PEEK



				6	9	8	140 lb. @ 120 rpm	Gold	-20 to 480	7922N112	00000	00000	00000


				High-Load Moisture-Resistant Rulon LR



						6	9	8	70 lb. @ 120 rpm	Maroon	-400 to 500	7763K712	00000	00000	00000


						Ultra-Low-Friction Rulon J



								6	9	8	55 lb. @ 120 rpm	Gold	-400 to 550	6377K514	00000	00000	00000

Dry-Running Flanged Sleeve Bearings

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.

Nylon—The most popular choice, nylon is wear resistant yet economical. Keep in mind, though, that it will swell and weaken when exposed to moisture.

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.

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

	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	Specs. Met		Each
Nylon



	6	9	6	12	1.5	22 lb. @ 120 rpm	26 lb. @ 120 rpm	White	-20 to 210	—	6389K484	00000


	6	9	10	12	1.5	37 lb. @ 120 rpm	26 lb. @ 120 rpm	White	-20 to 210	—	6389K471	0000
	6	9	12	12	1.5	44 lb. @ 120 rpm	26 lb. @ 120 rpm	White	-20 to 210	—	6389K472	0000
	6	9	16	12	1.5	55 lb. @ 120 rpm	26 lb. @ 120 rpm	White	-20 to 210	—	6389K473	0000


	Ultra-Chemical-Resistant PTFE



			6	9	10	12	1.5	12 lb. @ 120 rpm	8.5 lb. @ 120 rpm	White	-200 to 450	FDA Compliant 21 CFR 177.1550	2706T514	00000


			Ultra-Low-Friction Rulon J



					6	9	8	12	2	55 lb. @ 120 rpm	65 lb. @ 120 rpm	Gold	-400 to 500	—	6377K314	00000

Oil-Embedded Flanged Sleeve Bearings

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		Each
841 Bearing Bronze



	6	9	10	12	1.5	185 lb. @ 120 rpm	260 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6659K672	00000


	High-Load 863 Iron Copper



			6	9	10	12	1.5	370 lb. @ 120 rpm	310 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2938T754	0000

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

Flanged Sleeve Bearings

These bearings don’t come with a lubricant, so you can select the oil that meets the needs of your application. You’ll need to refill the oil, so make sure the bearing is located where you can access it. All are fabricated and inspected in the U.S.

High-Load 932 Bearing Bronze—These bearings are strong enough for sudden starts and stops, plus they resist wear and tear. They are cast from an alloy of leaded tin bronze for uniform rigidity and strength. Also known as 660 leaded bronze bearings.

	For Housing ID, mm	Lg., mm	Flange OD, mm	Flange Thk., mm	Dynamic Radial Load Cap. @ Speed	Dynamic Thrust Load Cap. @ Speed	Temp. Range, ° F		Each
High-Load 932 Bearing Bronze



	6	9	10	12	1.5	370 lb. @ 120 rpm	520 lb. @ 120 rpm	-350 to 450	5448T414	00000

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



	6	9	6	110 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	ASTM B438	1688K122	00000


	6	9	10	185 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	ASTM B438	1688K123	0000


	High-Load 863 Iron Copper



			6	9	6	220 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	—	7460N122	0000


			6	9	10	370 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	—	7460N123	0000

Ultra-Low-Friction Oil-Embedded Flanged Sleeve Bearings

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	Lubricant Additive	Temp. Range, ° F	Specs. Met		Each
841 Bearing Bronze



	6	9	10	12	1.5	185 lb. @ 120 rpm	260 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	ASTM B438	1677K218	00000


	High-Load 863 Iron Copper



			6	9	10	12	1.5	370 lb. @ 120 rpm	310 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	—	7119N117	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



	6	9	6	110 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	7095K122	00000


	6	9	10	185 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	7095K123	0000


	High-Load 863 Iron Copper



			6	9	6	220 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570, ASTM B439	7407N122	0000


			6	9	10	370 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570, ASTM B439	7407N123	0000

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	Specs. Met		Each
841 Bearing Bronze



	6	9	10	12	1.5	185 lb. @ 120 rpm	260 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	3746K48	00000