7mm 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.

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	6153K114	000000




						Highly Corrosion-Resistant 316 Stainless Steel

						7	19	6	Not Rated	75	2,300	-40	140	Standard	607	5908K65	00000


						7	26	9	Not Rated	120	1,600	-40	140	Standard	637	5908K727	00000


						Shielded







										Steel

										7	19	6	1	580	45,000	-20	230	Standard	607-2Z	5972K261	00000


										7	19	6	3	530	43,000	-20	230	Standard	607-2Z	4481N11	00000
										7	22	7	3	780	36,000	-20	230	Standard	627-2Z	4481N35	00000




												Corrosion-Resistant 440C Stainless Steel

												7	14	5	5	260	45,000	-40	240	Standard	687-2Z	7804K114	0000


												7	22	7	3	590	30,000	-40	240	Standard	627-2Z	6153K27	00000


												Sealed







																Steel

																7	19	6	1	580	22,000	-20	230	Standard	607-2RS	5972K225	00000


																7	22	7	1	730	20,000	-20	230	Standard	627-2RS	5972K502	0000




																Corrosion-Resistant 440C Stainless Steel

		7														22	7	3	590	30,000	-40	240	Standard	627-2RS	6153K72	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	4668K125	000000


				7	17	5	1	300	28,000	-10	200	Standard	697	4668K126	00000
				7	19	6	1	390	23,000	-10	200	Standard	607	4668K127	00000
				7	22	7	1	570	20,000	-10	200	Standard	627	4668K128	00000


				Sealed







								Steel

								7	19	6	1	390	23,000	10	200	Standard	607-2RS	2349K743	00000


								7	22	7	1	570	20,500	10	200	Standard	627-2RS	2349K746	00000




										Corrosion-Resistant 440C Stainless Steel

										7	14	5	1	200	30,000	-10	200	Standard	687-2RS	4668K236	00000


										7	17	5	1	300	28,000	-10	200	Standard	697-2RS	4668K237	00000
										7	19	6	1	390	23,000	-10	200	Standard	607-2RS	4668K238	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	57155K485	000000




						Corrosion-Resistant 440C Stainless Steel

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


						Shielded







										Steel

										7	19	6	22	1.5	3	520	38,000	-50	300	Standard	607-2Z	57155K616	00000




												Corrosion-Resistant 440C Stainless Steel

												7	11	3	12.2	0.6	5	100	50,000	-65	250	Standard	117-2Z	7804K157	00000


												7	14	5	16	1.1	3	210	44,000	-50	300	Standard	687-2Z	57155K613	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	7487N29	000000


				7	14	3.5	7	160	38,000	-30	280	Standard	7487N31	00000


				Shielded







								Corrosion-Resistant 440C Stainless Steel

								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

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	2423K42	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	6679K34	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	6455K115	00000	———	0


				7	22	7	40	1,600	-40	180	Not Rated	627	6455K94	0000	6455K128	000000

Metric Press-Fit Drill Bushings

Also known as jig bushings, these metric drill bushings fit inside fixture plate holes to precisely guide drill bits, counterbores, reamers, and other cutting tools. They improve accuracy so that your drilled holes and cuts are consistent from part to part. Known for their versatility, drill bushings are also used as spacers, shims, and machinery bushings. These bushings are made of hardened, ground steel that holds its shape and resists wear, so they last for many cycles without needing to be replaced.

All bushings have a chamfer on the outside that centers the bushing as you place it into the hole. Press into place with a manual or hydraulic press. Since the bushing is sized slightly larger than the hole for an extremely tight fit, it’ll stay put permanently. These are ANSI Type PM bushings—also known as headless bushings—which means you don’t need to counterbore the hole to mount them flush.

They also have an internal chamfer that makes it easy to insert bits, pins, and punches without damaging the bushing or misaligning tools.

Don't see the size you need? Additional sizes are available.

Both Ends—Bushings with an internal chamfer on both ends allow you to insert tools no matter which end of the bushing is inserted into the jig. However, having an internal chamfer on the bottom of your bushing may cause shavings to get caught and bind as you remove the bit.

DIN 179—DIN 179 bushings meet dimensional and material standards that make sure they're compatible with other parts and tools. Although DIN 179 is no longer an active standard, it's still a common reference point for designers.

						Tolerance, mm
	OD, mm	Lg., mm	Internal Chamfer	For Drill Bit Size, mm	For Drill Bit Size Decimal Equiv.	ID	OD	Lg.	Drill Bushing Type	Material	Hardness	Specs. Met		Each
7 mm ID



		12	10	One End	7	0.2756"	0.013 to 0.028	0.012 to 0.023	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	96990A263	000000


		12	10	Both Ends	7	0.2756"	0.013 to 0.028	0.012 to 0.023	-0.2 to 0.2	PM	Steel	Rockwell C61	—	97060A201	00000
		12	16	One End	7	0.2756"	0.013 to 0.028	0.012 to 0.023	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	8486A391	0000
		12	16	Both Ends	7	0.2756"	0.013 to 0.028	0.012 to 0.023	-0.2 to 0.2	PM	Steel	Rockwell C61	—	97060A202	00000
		12	20	One End	7	0.2756"	0.013 to 0.028	0.012 to 0.023	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	96990A808	00000
		12	20	Both Ends	7	0.2756"	0.013 to 0.028	0.012 to 0.023	-0.2 to 0.2	PM	Steel	Rockwell C61	—	97060A203	00000

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	8920N33	00000

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.

	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	6655K53	00000


	7	17	6	Bronze	410	11,000	-60 to 250	Two Washers	7806K62	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

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	4491N32	000000


				7	3/8"	1 29/64"	13/64"	95	40,000	440C Stainless Steel	Shielded	McMaster-Carr Approved	8600N114	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.

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 if the bearing heats up.

	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 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 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.

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
High-Load 863 Iron Copper



	7	11	8	15	2	340 lb. @ 120 rpm	400 lb. @ 120 rpm	Synthetic Oil	-15 to 300	2938T758	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

Image of Product. Front orientation. Plastic. Clear Ultra-Impact-Resistant Polycarbonate Round Tubes.

									8 ft. Long
	OD, mm	ID, mm	Fabrication	Temp., ° F	Tensile Strength, psi	Impact Strength, ft·lbf/in	Flammability Rating	Food Industry Std.		Each
1.000 mm Thick Wall (-0.130 mm to 0.130 mm Tolerance)



		9	7	Extruded	-40 to 200	8,900 to 9,500	12 to 18	UL 94 HB	FDA Standard	8585K821	00000


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



				11	7	Extruded	-40 to 200	8,900 to 9,500	12 to 18	UL 94 HB	FDA Standard	8585K828	0000

Metric Press-Fit Drill Bushings with Head


Shown in Countersunk Hole	Shown in Standard Hole

Even under extreme drilling pressure, these metric bushings won't press through your jig plate. They’re ANSI Type H bushings, also known as headed bushings. A flanged head acts as a stop, so these bushings won’t move as you push down your drill bit, reamer, or other cutting bit. Use them even in jigs made of thin or soft materials—the head adds support to protect your jig from damage caused by heavy use. Drill bushings ensure accurate, consistent cuts and drilled holes from one part to the next. They’re also used as spacers, shims, and machinery bushings. Made of hardened, ground steel, these bushings hold their shape and resist wear, so they last for many cycles without needing to be replaced.

These bushings meet DIN 172 dimensional standards. This standard is no longer active, but it’s often used as a reference point for making sure parts are compatible with other parts and tools.

To install, fit the bushing into a hole in your jig. In a standard hole, the head will sit above the jig plate; to mount flush, install in a countersunk hole. A chamfered edge on the bottom of the bushing helps center the bushing in the hole. Once it’s centered, press the bushing into the hole with a hydraulic or lever press.

					Head, mm		Tolerance, mm								Each
	OD, mm	Lg., mm	For Drill Bit Size, mm	For Drill Bit Size Decimal Equiv.	OD	Thk.	ID	OD	Lg.	Drill Bushing Type	Material	Hardness	Specs. Met		1-5	6-11	12-Up
7 mm ID



		12	7	7	0.2756"	15	3	0.013 to 0.028	0.012 to 0.023	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A270	000000	00000	00000


		12	13	7	0.2756"	15	3	0.013 to 0.028	0.012 to 0.023	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A271	00000	0000	0000
		12	17	7	0.2756"	15	3	0.013 to 0.028	0.012 to 0.023	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A272	00000	00000	00000