11mm OD 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

				4	11	4	5	210	53,000	-40	240	Standard	694-2Z	7804K101	00000


				5	11	4	5	160	53,000	-40	240	Standard	115-2Z	7804K107	0000

Permanently Lubricated Ball Bearings

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.

							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

				5	11	3	1	120	37,000	-10	200	Standard	685	4668K114	000000


				Sealed







								Corrosion-Resistant 440C Stainless Steel

								4	11	4	1	120	40,000	-10	200	Standard	694-2RS	4668K219	00000


								5	11	5	1	120	37,000	-10	200	Standard	685-2RS	4668K225	00000

Flanged Ball Bearings

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	11	3	12.5	0.8	3	160	64,000	-50	300	Standard	685	57155K462	000000


				7	11	2.5	12.2	0.6	3	100	59,000	-50	300	Standard	117	57155K485	00000




						Corrosion-Resistant 440C Stainless Steel

						5	11	3	12.5	0.8	3	120	64,000	-50	300	Standard	685	57155K463	00000


						7	11	2.5	12.2	0.6	3	80	59,000	-50	300	Standard	117	57155K486	00000


						Shielded







										Steel

										4	11	4	12.5	1	3	210	57,000	-50	300	Standard	694-2Z	57155K557	00000


										5	11	4	12.6	0.8	3	160	54,000	-50	300	Standard	115-2Z	57155K571	00000
										5	11	5	12.5	1	3	160	54,000	-50	300	Standard	685-2Z	57155K573	00000




												Corrosion-Resistant 440C Stainless Steel

												4	11	4	12.5	1	3	180	57,000	-50	300	Standard	694-2Z	57155K558	00000


												5	11	5	12.5	1	3	120	54,000	-50	300	Standard	685-2Z	57155K574	00000
												7	11	3	12.2	0.6	5	100	50,000	-65	250	Standard	117-2Z	7804K157	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

				5	11	3	7	115	50,000	-30	280	Standard	7487N21	000000


				7	11	2.5	7	80	44,000	-30	280	Standard	7487N29	00000


				Shielded







								Corrosion-Resistant 440C Stainless Steel

								5	11	5	7	115	50,000	-30	280	Standard	7487N51	00000


								7	11	3	7	80	44,000	-30	280	Standard	7487N59	00000

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



		7	11	9	700	660	33,000	Required	8	-40 to 280	DIN 618, ISO 3245	5905K352	00000

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

				5	11	5	1	160	37,500	-40	200	Standard	FDA Compliant 21 CFR 178.3570	685-2RS	4648K313	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



	4	11	0.5	13 lb. @ 120 rpm	Gray	-40 to 260	8920N25	00000


	6	11	1	11 lb. @ 120 rpm	Gray	-40 to 260	8920N28	0000

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


	8	11	10	14	1.5	12 lb. @ 120 rpm	9 lb. @ 120 rpm	White	-200 to 450	FDA Compliant 21 CFR 177.1550	2706T519	00000


	High-Load PEEK



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


			8	11	10	14	1.5	175 lb. @ 120 rpm	125 lb. @ 120 rpm	Beige	-20 to 450	—	6627K509	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.

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



	8	11	6	14	1.5	145 lb. @ 120 rpm	320 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6659K232	000000


	8	11	12	14	1.5	290 lb. @ 120 rpm	320 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6659K233	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.

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.

								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



		8	11	6	18 lb. @ 120 rpm	Off-White	-10 to 220	6389K726	000000	000000	00000


		8	11	12	37 lb. @ 120 rpm	Off-White	-10 to 220	6389K728	00000	00000	0000
		8	11	16	50 lb. @ 120 rpm	Off-White	-10 to 220	6389K729	00000	00000	00000

Clear Ultra-Impact-Resistant Polycarbonate Round Tubes

Comparable to Lexan, Hyzod, Tuffak, and Makrolon, these polycarbonate tubes are half the weight of glass and maintain excellent impact resistance across a wide temperature range. Use them to make instrument gauge covers and display racks.

Metric

							8 ft. Long
	OD, mm	ID, mm	Fabrication	Temp., ° F	Flammability Rating	Food Industry Std.		Each
1.000 mm Thick Wall (-0.130 mm to 0.130 mm Tolerance)



		11	9	Extruded	-40 to 200	UL 94 HB	FDA Standard	8585K822	00000


		2.000 mm Thick Wall (-0.260 mm to 0.260 mm Tolerance)



				11	7	Extruded	-40 to 200	UL 94 HB	FDA Standard	8585K828	0000