7mm Bearings | McMaster-Carr

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51 Products

Ball Bearings

Open

Shielded

Sealed

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.

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.

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.

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

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.

Highly-Corrosion-Resistant 316 Stainless Steel—The most corrosion-resistant metal bearings we offer. They won't pit or weaken from salt water or harsh chemicals, such as bleach and chlorine found in cleaning solutions.

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

				7	22	7	3	590	36,000	-40	240	Standard	627	00000000	000000




						Highly-Corrosion-Resistant 316 Stainless Steel

						7	19	6	Not Rated	75	2,300	-40	140	Standard	607	0000000	00000


						7	26	9	Not Rated	120	1,600	-40	140	Standard	637	00000000	00000


						Shielded







										Steel

										7	19	6	1	580	45,000	-20	230	Standard	607-2Z	00000000	00000


										7	19	6	3	530	43,000	-20	230	Standard	607-2Z	0000000	00000
										7	22	7	3	780	36,000	-20	230	Standard	627-2Z	0000000	00000




												Corrosion-Resistant 440C Stainless Steel

												7	14	5	5	260	45,000	-40	240	Standard	687-2Z	00000000	00000


												7	22	7	3	590	30,000	-40	240	Standard	627-2Z	0000000	00000


												Sealed







																Steel

																7	19	6	1	580	22,000	-20	230	Standard	607-2RS	00000000	00000


																7	22	7	1	730	20,000	-20	230	Standard	627-2RS	00000000	0000




																Corrosion-Resistant 440C Stainless Steel

		7														22	7	3	590	30,000	-40	240	Standard	627-2RS	0000000	00000

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.

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

							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

				7	14	3.5	1	200	30,000	-10	200	Standard	687	00000000	000000


				7	17	5	1	300	28,000	-10	200	Standard	697	00000000	00000
				7	19	6	1	390	23,000	-10	200	Standard	607	00000000	00000
				7	22	7	1	570	20,000	-10	200	Standard	627	00000000	00000


				Sealed







								Steel

								7	19	6	1	390	23,000	10	200	Standard	607-2RS	00000000	00000


								7	22	7	1	570	20,500	10	200	Standard	627-2RS	00000000	00000




										Corrosion-Resistant 440C Stainless Steel

										7	14	5	1	200	30,000	-10	200	Standard	687-2RS	00000000	00000


										7	17	5	1	300	28,000	-10	200	Standard	697-2RS	00000000	00000
										7	19	6	1	390	23,000	-10	200	Standard	607-2RS	00000000	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

				7	11	2.5	12.2	0.6	3	100	59,000	-50	300	Standard	117	000000000	000000




						Corrosion-Resistant 440C Stainless Steel

						7	11	2.5	12.2	0.6	3	80	59,000	-50	300	Standard	117	000000000	00000


						Shielded







										Steel

										7	19	6	22	1.5	3	520	38,000	-50	300	Standard	607-2Z	000000000	00000




												Corrosion-Resistant 440C Stainless Steel

												7	11	3	12.2	0.6	5	100	50,000	-20	250	Standard	117-2Z	00000000	00000


												7	14	5	16	1.1	3	210	44,000	-50	300	Standard	687-2Z	000000000	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

				7	11	2.5	7	80	44,000	-30	280	Standard	0000000	000000


				7	14	3.5	7	160	38,000	-30	280	Standard	0000000	00000


				Shielded







								Corrosion-Resistant 440C Stainless Steel

								7	11	3	7	80	44,000	-30	280	Standard	0000000	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	00000000	00000

Shaft Liners for Precision Needle-Roller Bearings

Adapt high-precision needle-roller bearings to use on unhardened, unground shafts. The liner fits between the roller and the shaft.

For Shaft Dia., mm	OD, mm	Wd., mm	Ring Material	Lubrication	Specs. Met		Each
7	10	12	Steel	Required	DIN 620	0000000	00000

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	0000000	00000

Dry-Running Ball 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 won't rust or warp from moisture, so they stand up to thorough cleanings.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, reducing wear and extending the life of the bearing.

Acetal—The most common choice for plastic bearings, acetal is economical yet still stands up to daily wear and tear.

316 Stainless Steel Balls—Won't corrode from salt water or harsh chemicals, such as bleach and chlorine found in cleaning solutions.

Glass Balls—Nonmagnetic, so they won't interfere with sensors and other sensitive electronics.

						Temp. Range, ° F				316 Stainless Steel Balls		Glass Balls
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	ABEC Rating	Bearing Trade No.		Each		Each
Open







				Acetal

				7	19	6	40	1,600	-40	180	Not Rated	607	00000000	00000	———	0


				7	22	7	40	1,600	-40	180	Not Rated	627	0000000	0000	00000000	000000

Thrust Ball Bearings

For silky-smooth motion, the balls inside these bearings roll nearly friction-free. You'll often find them at the end of a shaft or between a stationary and rotating surface, such as on a propeller or rotary table.

These bearings come as three separate pieces—one cage and two washers. The cage holds the balls in place, while the washers create a surface for the balls to roll on. This design is easy to lubricate, but the oil will attract dust and grime since it's exposed.

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

Stainless Steel—These bearings won't degrade from water or mild chemicals, such as the ammonia in cleaning solutions. However, they're not as strong as steel bearings.

	OD, mm	Thk., mm	Cage Material	Dynamic Thrust Load Cap., lb.	Max. Rotation Speed, rpm	Temp. Range, ° F	Includes		Each
Steel



	7	17	4.92	Nylon	135	5,000	-40 to 220	Two Washers	0000000	00000


	7	17	6	Bronze	410	11,000	-60 to 250	Two Washers	0000000	00000


	Stainless Steel



			7	17	4.92	Nylon	95	5,000	-40 to 220	Two Washers	0000000	0000

Dry-Running Thrust Bearings

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	0000000	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	Specs. Met		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	00000000	000000


	High-Load PEEK



			7	11	8	15	2	140 lb. @ 120 rpm	160 lb. @ 120 rpm	Beige	-20 to 450	—	00000000	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	00000000	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.

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	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	00000000	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.

	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	0000000	000000


	High-Load 863 Iron Copper



			7	11	8	15	2	340 lb. @ 120 rpm	400 lb. @ 120 rpm	Synthetic Oil	-15 to 300	00000000	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	0000000	00000

Mounted Ball Bearings

Smoother than smooth—the balls inside these bearings roll nearly friction-free. The sturdy housing bolts down to support shafts as they turn.

Lubricate regularly to keep your bearing in tip-top shape. Bearings with seals and shields keep lubricants in and contaminants out, and come packed with grease. Open bearings require initial lubrication and offer less protection against dust and debris.

Aluminum Housing—One-third the weight of cast iron but not as strong. Aluminum also resists corrosion.

Press Fit—For a tight connection to the shaft, install with a press or by heating and then cooling the bearing. Also known as an interference fit.

			Overall
	For Shaft Dia., mm	Ctr. Ht.	Lg.	Wd.	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Bearing Material	Bearing Seal Type	Manufacturer		Each
Aluminum Housing







				Press Fit

				7	3/8"	1 29/64"	13/64"	95	20,000	440C Stainless Steel	Sealed	McMaster-Carr Approved	0000000	000000


				7	3/8"	1 29/64"	13/64"	95	40,000	440C Stainless Steel	Shielded	McMaster-Carr Approved	00000000	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	00000000	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	00000000	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	00000000	000000

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



	7	11	8	15	2	170 lb. @ 120 rpm	420 lb. @ 120 rpm	Synthetic Oil	-75 to 300	FDA Compliant 21 CFR 178.3570	0000000	000000