75mm 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.

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.

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

				45	75	16	1	2,900	11,000	-40	240	Standard	6009	6153K146	0000000


				Shielded







								Steel

								45	75	16	1	4,750	11,000	-20	230	Standard	6009-2Z	5972K271	00000


								45	75	16	3	4,950	10,000	-20	230	Standard	6009-2Z	4481N18	00000


								Sealed







												Steel

												45	75	16	1	4,750	4,900	-20	230	Standard	6009-2RS	5972K922	00000


												45	75	16	3	4,950	6,300	-30	210	Standard	6009-2RS	4481N65	000000

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

				45	75	16	1	3,650	5,000	-10	200	Standard	6009	4668K191	0000000


				Sealed







								Steel

								45	75	16	1	4,000	5,000	10	200	Standard	6009-2RS	2349K802	00000




										Corrosion-Resistant 440C Stainless Steel

										45	75	16	1	3,650	5,000	-10	200	Standard	6009-2RS	4668K298	000000

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

				45	75	16	1	4,000	5,000	-40	200	Standard	FDA Compliant 21 CFR 178.3570	6009-2RS	4648K21	0000000

High-Precision Angular Contact Ball Bearings

Open

Sealed

Our most precise bearings for tackling radial and thrust loads at once, 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). Choose them for equipment that requires both high speed and pinpoint accuracy, such as machine tool spindles. For example, a bearing on a spindle withstands a radial load as it spins at high speeds and a thrust load when the cutting tool touches the workpiece. These bearings don’t handle as much force from radial loads as standard ones, but you can pair them with a cylindrical roller bearing to increase their load capacity.

Single Row—Single-row bearings withstand thrust loads from one direction.

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	Material	Dynamic Combined Load Cap., lbf	Max. Rotation Speed, rpm	Lubrication	Contact Angle	Min.	Max.	Bearing Trade No.		Each
Single Row







				Open

				45	75	16	7	Steel	6,400	19,000	Required	15°	-30	140	7009	2385K49	0000000




						Sealed

						45	75	16	7	Steel	5,750	19,200	Lubricated	15°	0	230	7009	4487N14	000000

Angular Contact Ball Bearings

Single Row

Open

Support radial and thrust loads at the same time. These bearings are often found inside equipment such as gearboxes and pumps. For example, a bearing inside a gearbox withstands a radial load when the gear is engaged and a momentary thrust load when you shift to a new one. While they don't handle as much force from radial loads as standard bearings, you can pair them with a cylindrical roller bearing to increase their load capacity.

Single Row—Single-row bearings withstand thrust loads from one direction.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

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	Material	Dynamic Combined Load Cap., lbf	Max. Rotation Speed, rpm	Lubrication	Contact Angle	Min.	Max.	Bearing Trade No.		Each
Single Row







				Open

				45	75	16	5	Steel	5,700	19,500	Required	15°	-40	250	7009	2385K105	0000000

Flange-Mounted Linear Ball Bearings

The flanged housing makes these bearings a good solution for vertical linear motion applications. All are for use with round end-supported shafts and have a fixed-alignment design for use where shaft misalignment is unlikely. End seals keep lubricant in and dirt out.

Fixed Alignment


Round Flange	Square Flange

		Overall, mm			Flange, mm				Load Capacity, lb.				Mounting Holes
	For Shaft Dia., mm	Lg.	Wd.	Ht.	Thk.	OD	Bolt Circle Dia., mm	OD, mm	Dynamic	Static	Temp. Range, ° F	For Shaft Material	No. of	Dia., mm		Each
Steel Bearings with Round Flange



		50	192	112	112	13	112	94	75	1,350	3,550	-4 to 176	Stainless Steel, Steel	4	9	6483K128	0000000


		Steel Bearings with Square Flange



				50	100	88	88	13	—	94	75	850	1,750	-4 to 176	Stainless Steel, Steel	4	9	6483K148	000000

Bearing Locknuts

Carbon Steel

With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place. They come as one piece, so you can easily clamp them onto your shaft or spindle. But, since they aren’t made entirely of metal, they don’t stand up to heat as well as all-metal locknuts. Slots in their sides mean you can tighten and loosen them with a spanner wrench or spanner socket. Their face is also chamfered to help keep the size and weight of your assembly at a minimum. All meet international standards for bearing locknut dimensions.

Zinc-Plated Carbon Steel—Zinc-plated carbon steel locknuts resist rusting from some moisture, but you shouldn’t use them with salt water or chemicals. They are strong and resist wear, though they don’t stand up to corrosion as well as 303 stainless steel locknuts.

Carbon Steel—All carbon steel locknuts are strong and resist wear, though they don’t stand up to corrosion as well as 303 stainless steel locknuts.

303 Stainless Steel—303 stainless steel locknuts resist corrosion better than carbon steel locknuts but aren’t as strong. They withstand washdowns and chemicals.

Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.

	Locknuts												Sockets
	Thread						Carbon Steel		Zinc-Plated Carbon Steel		303 Stainless Steel
	Size	Spacing	OD, mm	Wd., mm	Insert Max. Temp., ° F	Specs. Met		Each		Each		Each		Each
Chamfered Face



		M52 × 1.5 mm	Extra Fine	75	13.5	210	—	———	0	3552N46	0000000	———	0	———	0


		M55 × 2 mm	Extra Fine	75	13.5	210	—	———	0	3552N47	00000	———	0	———	0
		M55 × 2 mm	Extra Fine	75	15	160	ISO 2982-2	5197N116	000000	———	0	5197N137	000000	5510N159	0000000

Flush-Mount Screw-Clamp Bushings

Insert these bushings into the bore of your sprocket for flush or recessed mounting. They handle shock loads. When you tighten the included clamping screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. They can be mounted on shafts with or without keyways.

	OD, mm	Overall Wd., mm	Max. Torque, in·lbf	Fastener Tightening Torque, in·lbf	Includes		Each
Steel



	40	75	54	25,500	363	Clamping Screws	1070N15	0000000


	45	75	54	28,700	363	Clamping Screws	1070N16	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.

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



	50	75	5	3,200 lb. @ 60 rpm	Synthetic Oil	-35 to 300	2011N144	000000

Linear Ball Bearings

Bearings are for use with round end-supported shafts. To install, slide bearings into a housing (not included).

Fixed Alignment


With Retaining Ring Grooves

Fixed-alignment bearings are for use where shaft misalignment is unlikely.

With Retaining Ring Grooves—For bearings with retaining ring grooves, secure with two retaining rings (sold individually).

With End Seals—Bearings with end seals keep lubricant in and dust out.

	Bearings														Retaining Rings
								Load Capacity, lb.		Temp., ° F
	For Shaft Dia., mm	Overall Lg., mm	OD, mm	For Housing ID	With Retaining Ring Grooves	Retaining Ring Groove End-to-End Lg., mm	With End Seals	Dynamic	Static	Min.	Max.	For Shaft Material		Each		Each
Steel Bearings with Steel Balls



		50	100	75	75.000 mm to 75.030 mm	Yes	77.6	Yes	855	1,780	-4	176	Stainless Steel, Steel	61205K99	0000000	9968K75	00000

Thrust Bearings

With no moving parts, these bearings are the plainest way to support thrust loads while reducing friction. They don't come with lubricant, so you can choose the oil that's best for your application. Make sure to mount them where they're easy to access, since you'll need to replenish the oil frequently. All are fabricated and inspected in the U.S.

High-Load Chemical-Resistant 954 Bearing Bronze—The addition of iron and aluminum makes these bearings strong and exceptionally chemical resistant. You'll find them in demanding environments, such as salt mines. Also known as aluminum bronze.

	OD, mm	Thk., mm	Dynamic Thrust Load Cap. @ Speed	Temp. Range, ° F		Each
High-Load Chemical-Resistant 954 Bearing Bronze



	50	75	3	Not Rated	-350 to 500	2872T71	000000

Bearing Nuts

Carbon Steel

Chamfered Face

Carbon Steel

Stepped Face

Often paired with spring lock washers to strengthen their hold, these bearing nuts—also known as shaft nuts—keep vibration from shifting bearings, bushings, pulleys, and gears on your threaded shaft or spindle. They have slotted sides, so you can tighten and loosen them with a spanner wrench or spanner socket.

Carbon Steel—Carbon steel bearing nuts are strong and resist wear.

Chamfered Face—Chamfered-face bearing nuts weigh less and produce less heat than stepped-face nuts.

Stepped Face—Use stepped-face bearing nuts with DIN 462 spring lock washers. You can also use them in pairs or with other bearing nuts. For the nut closer to the bearing, position the stepped face towards the bearing. All meet DIN standards for bearing lockout dimensions.

ISO 2982— Some chamfered-face bearing nuts meet ISO 2982 (formerly DIN 981), an international standard for bearing locknut dimensions. Their sizes correspond to SKF KM series. Use them with DIN 5406 spring lock washers.

Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.

	Nuts								Bearing Lock Washers
	Thread
	Size	Spacing	OD, mm	Wd., mm	Specs. Met	For Lock Washer Specs. Met		Each		Each
Carbon Steel







				Chamfered Face

				M55 × 2 mm	Extra Fine	75	11	DIN 981, ISO 2982	DIN 5406	3554N23	000000	90391A123	00000




						Stepped Face

						M50 × 1.5 mm	Extra Fine	75	13	DIN 1804	DIN 462	3564N28	00000	90407A133	0000

High-Speed Linear Sleeve Bearings

A ceramic liner makes high speeds as well as rapid acceleration and deceleration possible. Bearings are for use with round end-supported shafts. They have a fixed-alignment design for applications where shaft misalignment is unlikely. To install, slide bearings into a housing (not included) and secure with two retaining rings (sold individually).

Fixed Alignment

Image of Product. Front orientation. Contains Annotated. Linear Bearings. High-Speed Linear Sleeve Bearings .

	Bearings															Retaining Rings
											Temp., ° F
	For Shaft Dia., mm	Shaft Clearance, mm	Overall Lg., mm	OD, mm	For Housing ID	With Retaining Ring Grooves	Retaining Ring Groove End-to-End Lg., mm	With End Seals	Dynamic Linear Load Cap. @ Speed	Static Load Cap., lb.	Min.	Max.	For Shaft Material		Each		Each
Ceramic-Lined 6061 Aluminum Bearings



		50	0.013 to 0.05	100	75	75 mm	Yes	72	No	2,000 lb. @ 100 fpm	38,750	-200	400	Stainless Steel, Steel	6673K45	000000	9968K75	00000

Linear Ball Bearings for Support Rail Shafts

Mount these bearings on a support rail shaft for applications requiring maximum rigidity. All have end seals to keep lubricant in and dirt out. To install, slide bearings into a housing (not included). For bearings with retaining ring grooves, secure with two retaining rings (sold individually).

Fixed Alignment

Fixed-alignment bearings are for use where shaft misalignment is unlikely.

	Bearings															Retaining Rings
									Load Capacity, lb.		Temp., ° F
	For Shaft Dia., mm	Overall Lg., mm	OD, mm	Wd., mm	For Housing ID	With Retaining Ring Grooves	Retaining Ring Groove End-to-End Lg., mm	With End Seals	Dynamic	Static	Min.	Max.	For Shaft Material		Each		Each
Steel Bearings with Steel Balls



		50	100	75	21	75.000 mm to 75.030 mm	Yes	77.6	Yes	855	1,700	-4	176	Stainless Steel, Steel	61205K105	0000000	9968K75	00000

Corrosion-Resistant Flush-Mount Screw-Clamp Bushings

Insert these nickel-plated steel bushings into the bore of your sprocket for flush or recessed mounting in wet environments. When you tighten the included clamping screws on these bushings, their inner sleeve contracts onto the shaft and their outer sleeve expands to hold your sprocket, pulley, or gear. This keeps bushings from slipping during sudden starts and stops.

	OD, mm	Overall Wd., mm	Max. Torque, in·lbf	Fastener Tightening Torque, in·lbf	Includes		Each
Nickel-Plated Steel



	45	75	32	15,900	360	Clamping Screws	5515N15	0000000

Thin-Profile Bearing Nuts

Used in pairs or with another bearing nut, these thin-profile nuts—often called shaft nuts—hold bearings, bushings, pulleys, and gears in place on your threaded shaft or spindle. Threading two nuts tightly against each other makes it harder for vibration to loosen your assembly than if you used only one nut. For the nut closer to the bearing, position the stepped face towards the bearing. These thin-profile nuts have holes on the side, so you can tighten and loosen them with a pin spanner wrench. All meet DIN 1816, an international standard for bearing locknut dimensions.

Carbon Steel—Carbon steel bearing nuts are strong and resist wear.

Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.

	Thread
	Size	Spacing	OD, mm	Wd., mm	Specs. Met		Each
Carbon Steel







				Stepped Face

				M48 × 1.5 mm	Extra Fine	75	13	DIN 1816	3549N27	000000


				M50 × 1.5 mm	Extra Fine	75	13	DIN 1816	3549N28	00000

Shims

With thickness tolerances as fine as a strand of hair, these shims precisely align, space, and level components on shafts, arbors, and machinery.

You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.

18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.

Carbon Steel—Best for dry environments since moisture will cause these shims to rust.

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.

	OD Tolerance, mm	Min. Hardness	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







	60 mm ID × 75 mm OD

	0.1	-0.013 to 0.013	-0.31 to 0.29	-0.12 to -0.02	Rockwell B70	—	5	98089A509	000000


	0.2	-0.023 to 0.023	-0.31 to 0.29	-0.12 to -0.02	Rockwell B70	—	5	98089A630	00000
	0.3	-0.055 to 0.055	-0.31 to 0.29	-0.12 to -0.02	Rockwell B70	—	5	98089A742	00000
	0.5	-0.064 to 0.064	-0.31 to 0.29	-0.12 to -0.02	Rockwell B70	—	5	98089A854	00000
	1	-0.105 to 0.105	-0.31 to 0.29	-0.12 to -0.02	Rockwell B70	—	1	98089A966	0000


	Carbon Steel







					60 mm ID × 75 mm OD

					0.5	-0.064 to 0.064	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	10	3088A608	0000


					1	-0.105 to 0.105	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	5	3088A098	0000
					1.5	-0.14 to 0.14	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	5	3088A118	00000
					2	-0.21 to 0.21	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	1	3088A31	0000


					Stress-Resistant Spring Steel







									60 mm ID × 75 mm OD

									0.2	-0.04 to 0	0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	5	98055A465	0000


									0.3	-0.05 to 0	0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	5	98055A467	0000
									0.5	-0.05 to 0	0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	5	98055A469	0000
									1	-0.05 to 0	0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	5	98055A472	0000
									1.5	-0.05 to 0	0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	1	98055A541	0000