6mm Housing ID Bearings | McMaster-Carr

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.

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
Shielded







				Corrosion-Resistant 440C Stainless Steel

				2	6	3	5	70	90,000	-40	240	Standard	692-2Z	7804K121	00000


				3	6	2.5	5	45	80,000	-40	240	Standard	63-2Z	7804K124	0000

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

				3	6	2	7.2	0.6	3	40	96,000	-50	300	Standard	63	57155K424	00000




						Corrosion-Resistant 440C Stainless Steel

						2	6	2.5	7.2	0.6	3	60	100,000	-50	300	Standard	62	57155K421	00000


						3	6	2	7.2	0.6	3	30	96,000	-50	300	Standard	63	57155K425	00000


						Shielded







										Steel

										2.5	6	2.6	7.1	0.8	3	40	81,000	-50	300	Standard	682-2Z	57155K535	00000


										3	6	2.5	7.2	0.6	3	40	81,000	-50	300	Standard	63-2Z	57155K537	00000




												Corrosion-Resistant 440C Stainless Steel

												2	6	3	7.5	0.8	3	60	86,000	-50	300	Standard	692-2Z	57155K531	00000


												3	6	2.5	7.2	0.6	3	30	81,000	-50	300	Standard	63-2Z	57155K538	00000

High-Precision Ball Bearings

Open

Shielded

The most precise bearings we offer, with tolerances tighter than a speck of dust. Rated ABEC 7 out of 9, they meet strict tolerance standards established by the Annular Bearing Engineers Committee (ABEC). You'll find them in equipment that requires both high speed and pinpoint accuracy, such as gyroscopes.

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.

							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		Each
Open







				Corrosion-Resistant 440C Stainless Steel

				2	6	2.3	7	37	100,000	-30	280	Standard	7487N15	000000


				Shielded







								Corrosion-Resistant 440C Stainless Steel

								3	6	2	7	41	89,000	-30	280	Standard	7487N46	00000


								3	6	2.5	7	41	89,000	-30	280	Standard	7487N45	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.

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

Moisture-Resistant Ultra-Low-Friction Plastic Blend—These bearings won't warp or swell from humidity or direct contact with water. They 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	Food Industry Std.		Each
Ultra-Chemical-Resistant PTFE



	3	6	4	9	1.5	5 lb. @ 120 rpm	7.5 lb. @ 120 rpm	White	-200 to 450	FDA Compliant 21 CFR 177.1550	2706T511	000000


	High-Load PEEK



			3	6	4	9	1.5	70 lb. @ 120 rpm	110 lb. @ 120 rpm	Beige	-20 to 450	—	6627K501	00000


			Ultra-Low-Friction Rulon J



					3	6	5	9	1.5	17 lb. @ 120 rpm	55 lb. @ 120 rpm	Gold	-400 to 500	—	6377K311	00000


					Moisture-Resistant Ultra-Low-Friction Plastic Blend



							5	6	5	10	0.5	60 lb. @ 120 rpm	70 lb. @ 120 rpm	Yellow	-50 to 190	—	2705T115	0000

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



		3	6	5	17 lb. @ 120 rpm	Gold	-400 to 550	6377K511	000000	000000	000000

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.

Mineral Oil Base—Mineral oil consistently lubricates at most temperatures but doesn’t last as long as synthetic oil.

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



	3	6	4	9	1.5	37 lb. @ 120 rpm	175 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6659K64	00000


	3	6	5	9	1.5	46 lb. @ 120 rpm	175 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6659K203	00000
	3	6	6	9	1.5	55 lb. @ 120 rpm	175 lb. @ 120 rpm	Mineral Oil	10 to 220	6659K111	0000
	5	6	5	10	0.5	75 lb. @ 120 rpm	180 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6659K208	00000


	High-Load 863 Iron Copper



			3	6	4	9	1.5	70 lb. @ 120 rpm	270 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2938T75	0000

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.

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.

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	Dynamic Radial Load Cap. @ Speed	Temp. Range, ° F		Each
High-Load 932 Bearing Bronze



	3	6	3	55 lb. @ 120 rpm	-350 to 450	7811K111	00000


	5	6	6	185 lb. @ 120 rpm	-350 to 450	7811K117	0000
	5	6	10	310 lb. @ 120 rpm	-350 to 450	7811K114	0000
	5	6	12	370 lb. @ 120 rpm	-350 to 450	7811K115	0000
	5	6	16	490 lb. @ 120 rpm	-350 to 450	7811K116	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



	3	6	4	37 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6658K64	00000


	3	6	6	55 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6658K111	0000
	3	6	10	90 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6658K721	0000


	High-Load 863 Iron Copper



			3	6	4	70 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2868T304	0000


			3	6	10	185 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2868T305	0000

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



	3	6	4	37 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	ASTM B438	1688K114	00000


	3	6	10	90 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	ASTM B438	1688K115	0000


	High-Load 863 Iron Copper



			3	6	4	70 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	—	7460N114	0000


			3	6	10	185 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	—	7460N115	0000

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	Temp. Range, ° F		Each
High-Load 932 Bearing Bronze



	3	6	4	9	1.5	70 lb. @ 120 rpm	350 lb. @ 120 rpm	-350 to 450	5448T411	000000

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



	3	6	4	9	1.5	37 lb. @ 120 rpm	175 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	ASTM B438	1677K214	00000


	High-Load 863 Iron Copper



			3	6	4	9	1.5	70 lb. @ 120 rpm	270 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	—	7119N113	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



	3	6	10	90 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	7095K115	00000


	High-Load 863 Iron Copper



			3	6	4	70 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570, ASTM B439	7407N114	0000