6mm 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

				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

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
2.6 mm ID



		6	8	One End	2.6	0.1024"	0.002 to 0.008	0.019 to 0.027	-0.01 to 0.254	PM	Steel	Rockwell C61	—	96990A886	00000


		2.8 mm ID



				6	16	One End	2.8	0.1102"	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	96990A157	00000


				2.9 mm ID



						6	12	One End	2.9	0.1142"	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	8486A241	0000


						3 mm ID



								6	8	One End	3	0.1181"	0.01 to 0.022	0.01 to 0.019	-0.25 to 0.25	PM	Steel	Rockwell C61	DIN 179	8486A516	00000


								6	8	Both Ends	3	0.1181"	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	—	96990A757	0000
								6	12	One End	3	0.1181"	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	8486A25	0000
								6	12	Both Ends	3	0.1181"	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	—	96990A758	0000
								6	16	One End	3	0.1181"	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	96990A161	00000
								6	16	Both Ends	3	0.1181"	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	—	96990A759	00000


								3.1 mm ID



										6	8	One End	3.1	0.122"	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	96990A162	0000


										6	8	Both Ends	3.1	0.122"	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	—	96990A761	0000
										6	12	One End	3.1	0.122"	0.01 to 0.022	0.01 to 0.019	-0.25 to 0.25	PM	Steel	Rockwell C61	DIN 179	8486A523	00000
										6	12	Both Ends	3.1	0.122"	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	—	96990A762	0000


										3.2 mm ID



												6	8	One End	3.2	0.126"	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	96990A164	0000


												6	12	One End	3.2	0.126"	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	8486A261	0000
												6	16	One End	3.2	0.126"	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	96990A165	00000


												3.25 mm ID



														6	8	One End	3.25	0.128"	0.01 to 0.022	0.008 to 0.016	-0.25 to 0.25	PM	Steel	Rockwell C61	DIN 179	8486A518	00000


6														16	One End	3.25	0.128"	0.004 to 0.012	0.019 to 0.027	-0.01 to 0.254	PM	Steel	Rockwell C61	—	96990A898	00000


3.3 mm ID



														6	8	One End	3.3	0.1299"	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	96990A166	0000


		6	8											Both Ends	3.3	0.1299"	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	—	96990A767	0000
		6	12											One End	3.3	0.1299"	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	8486A271	0000
		6	12											Both Ends	3.3	0.1299"	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	—	96990A768	0000
		6	16											One End	3.3	0.1299"	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	96990A167	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.

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


			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

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



	3	6	5	9	1.5	46 lb. @ 120 rpm	175 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6659K203	000000


	5	6	5	10	0.5	75 lb. @ 120 rpm	180 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6659K208	00000

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
2.7 mm ID



		6	5.5	2.7	0.1063"	9	2.5	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A141	00000	00000	00000


		6	9.5	2.7	0.1063"	9	2.5	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A142	0000	0000	0000
		6	13.5	2.7	0.1063"	9	2.5	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A143	00000	00000	00000


		2.8 mm ID



				6	5.5	2.8	0.1102"	9	2.5	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A144	0000	0000	0000


				6	9.5	2.8	0.1102"	9	2.5	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A145	0000	0000	0000


				2.9 mm ID



						6	5.5	2.9	0.1142"	9	2.5	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A147	0000	0000	0000


						6	9.5	2.9	0.1142"	9	2.5	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A148	0000	0000	0000


						3 mm ID



								6	5.5	3	0.1181"	9	2.5	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A150	0000	0000	0000


								6	9.5	3	0.1181"	9	2.5	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A151	0000	0000	0000
								6	13.5	3	0.1181"	9	2.5	0.006 to 0.016	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A152	00000	00000	00000


								3.1 mm ID



										6	5.5	3.1	0.122"	9	2.5	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A153	0000	0000	0000


										6	9.5	3.1	0.122"	9	2.5	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A154	0000	0000	0000
										6	13.5	3.1	0.122"	9	2.5	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A155	00000	00000	00000


										3.2 mm ID



												6	5.5	3.2	0.126"	9	2.5	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A156	0000	0000	0000


												6	9.5	3.2	0.126"	9	2.5	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A157	0000	0000	0000
												6	13.5	3.2	0.126"	9	2.5	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A158	00000	00000	00000


												3.3 mm ID



												6	5.5	3.3	0.1299"	9	2.5	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A159	0000	0000	0000


												6	9.5	3.3	0.1299"	9	2.5	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A160	0000	0000	0000
												6	13.5	3.3	0.1299"	9	2.5	0.01 to 0.022	0.008 to 0.016	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A161	00000	00000	00000

Ultra-Low-Friction Oil-Embedded Thrust Bearings

Our slipperiest metal thrust bearings glide on machines with frequent starts and stops, such as conveyors. Their oil contains nonstick PTFE particles that reduce wear and heat, extending the life of your equipment. 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 run at slower speeds. The increased iron content also makes them appear silver.

	OD, mm	Thk., mm	Dynamic Thrust Load Cap. @ Speed	Base Oil	Lubricant Additive	Temp. Range, ° F		Each
High-Load 863 Iron Copper



	3	6	1.5	125 lb. @ 120 rpm	Synthetic Oil	PTFE	-60 to 300	7380N173	000000

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



	3	6	1.5	210 lb. @ 120 rpm	Synthetic Oil	-35 to 300	2011N36	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)



		6	4	Extruded	-40 to 200	8,900 to 9,500	12 to 18	UL 94 HB	FDA Standard	8585K819	00000


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



				6	2	Extruded	-40 to 200	8,900 to 9,500	12 to 18	UL 94 HB	FDA Standard	8585K826	0000

Shims for Lengthening Screw Shoulders

When shoulders come up short, use these shims to extend the shoulder length on your screw. Wiggle the shims over the threads and up to the existing shoulder to create the exact shoulder length you need. Use them to create more space for bearings, pulleys, and sprockets, or extend the length of travel along the shoulder.

You can stack multiple shims to achieve the exact shoulder length or space you need.

Stress-Resistant Spring Steel—These shims are harder and hold their shape better than carbon steel. Use them for high-stress applications, such as leveling heavy machinery. They're best for dry environments since moisture will cause them to rust.

	ID, mm	ID Tolerance, mm	OD, mm	OD Tolerance, mm	Min. Hardness	Pkg. Qty.		Pkg.
Stress-Resistant Spring Steel







	For 6 mm Diameter Shoulder

	0.005"	-0.0005" to 0.0005"	M5	4.976	0 to 0.254	6	-0.254 to 0	Rockwell C40	5	92927A129	000000


	0.015"	-0.001" to 0.001"	M5	4.976	0 to 0.254	6	-0.254 to 0	Rockwell C40	5	92927A133	00000