90mm 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







				Steel

				40	90	23	1	9,550	10,800	-20	230	Standard	6308	5972K124	000000


				50	90	20	1	6,650	7,100	-20	230	Standard	6210	5972K129	00000
				70	90	10	1	2,700	8,100	-50	130	Standard	6814	6656K153	00000


				Shielded







								Steel

								40	90	23	1	9,550	7,500	-20	230	Standard	6308-2Z	5972K355	00000


								40	90	23	3	9,500	8,500	-20	230	Standard	6308-2Z	6661K69	000000
								50	90	20	1	6,650	7,100	-20	230	Standard	6210-2Z	5972K366	00000
								50	90	20	3	8,300	8,000	-20	230	Standard	6210-2Z	6661K52	000000
								55	90	18	1	6,700	9,100	-20	230	Standard	6011-2Z	5972K273	000000
								55	90	18	3	6,650	8,000	-20	230	Standard	6011-2Z	4481N21	000000
								70	90	10	1	2,700	6,800	-40	150	Standard	6814-2Z	6656K241	00000


								Sealed







												Steel

												40	90	23	1	9,550	4,800	-20	230	Standard	6308-2RS	5972K61	00000


												40	90	23	3	9,500	5,000	-30	210	Standard	6308-2RS	6661K129	000000
												50	90	20	1	8,200	4,300	-20	230	Standard	6210-2RS	5972K52	00000
												50	90	20	3	8,300	4,800	-30	210	Standard	6210-2RS	6661K112	000000
												55	90	18	1	6,700	4,100	-20	230	Standard	6011-2RS	5972K235	000000
												55	90	18	3	6,650	5,000	-30	210	Standard	6011-2RS	4481N67	000000




														Corrosion-Resistant 440C Stainless Steel

														50	90	20	1	7,850	4,500	-20	210	Standard	6210-2RS	6138K113	000000


55														90	18	1	6,350	4,200	-20	210	Standard	6011-2RS	6138K114	000000

Angular Contact Ball Bearings


Single Row Open	Single Row Sealed	Double Row Open	Double Row Shielded	Double Row Sealed

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.

Double Row—Double-row bearings handle thrust loads from both directions.

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.

										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

				40	90	23	3	Steel	10,300	9,000	Required	40°	-40	300	7308	6680K31	0000000


				50	90	20	3	Steel	8,450	8,500	Required	40°	-40	300	7210	6680K22	000000




						Sealed

						40	90	23	1	Steel	11,900	4,500	Lubricated	40°	-20	230	7308-2RS	6680K49	000000


						Double Row







										Open

										50	90	30.2	3	Steel	11,400	7,000	Required	30°	-40	250	3210	8828T121	000000




												Shielded

												50	90	30.2	3	Steel	11,400	7,000	Lubricated	30°	-40	300	3210-2Z	8828T221	000000




														Sealed

														50	90	30.2	3	Steel	11,400	4,800	Lubricated	30°	-40	210	3210-2RS	8828T321	000000

Spherical-Roller Bearings

Two rows of rollers give these bearings higher dynamic radial load capacities than comparably sized tapered-roller bearings. Also known as rock crusher bearings, they handle heavy shock loads and are used for metal milling machinery, mining and oil field equipment, and in paper mills.

						Combined Load Cap., lbf
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Bearing Trade No.	Ring Material	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	Max. Temp., ° F		Each
Open Bearing



		40	90	33	22308	Steel	35,000	33,400	7,600	Required	212	2721T26	0000000


		50	90	23	22210	Steel	24,500	24,000	9,800	Required	212	2721T21	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







				Steel

				40	90	23	1	7,050	4,600	10	200	Standard	6308	2349K719	000000


				50	90	20	1	6,050	4,000	10	200	Standard	6210	2349K708	00000


				Sealed







								Steel

								40	90	23	1	7,050	4,600	10	200	Standard	6308-2RS	2349K775	00000


								50	90	20	1	6,050	4,000	10	200	Standard	6210-2RS	2349K763	00000
								55	90	18	1	4,900	4,000	10	200	Standard	6011-2RS	2349K752	000000




										Corrosion-Resistant 440C Stainless Steel

										50	90	20	1	6,050	4,000	-10	200	Standard	6210-2RS	4668K336	000000

Quick-Mount Ball Bearings

Set-Screw

Shaft Mount

Slip onto a shaft and secure with the turn of a screw. You don't need any special tools to mount these bearings.

Set-Screw Shaft Mount—Tighten the screws against the shaft to hold the bearing in place. For high-speed applications, consider clamp-on shaft mounts, which are less likely to slip.

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

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.

				Retaining Ring, mm						Temp. Range, ° F
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	OD	Thk.	Bearing Seal Type	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Bearing Trade No.		Each
Set-Screw Shaft Mount







				Black-Oxide Steel

				50	90	28.6	96	2.4	Sealed	1	7,850	3,550	-20	220	ER210	5629N17	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

				50	90	20	7	Steel	10,100	16,500	Required	15°	-40	245	7210	4487N31	0000000




						Sealed

						55	90	18	7	Steel	8,050	15,900	Lubricated	15°	0	230	7011	4487N16	00000000

Electrical Insulating Ball Bearings

Shielded

Protect bearings from stray currents. The ceramic balls insulate bearings from electrical charges in electric motors and power generators that can damage the inner ring over time. The balls also generate less heat than metal ones, so you don’t have to lubricate them as often to keep bearings running smoothly.

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.

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







				Steel

				40	90	23	1	11,400	11,000	-20	245	6308-2Z	1389N57	0000000


				50	90	20	1	9,600	10,800	-20	245	6210-2Z	1389N42	000000

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



		60	209	134	134	18	134	112	90	1,650	4,450	-4 to 176	Stainless Steel, Steel	4	11	6483K131	0000000


		Steel Bearings with Square Flange



				60	125	106	106	18	—	112	90	1,050	2,200	-4 to 176	Stainless Steel, Steel	4	11	6483K151	000000

Self-Aligning Ball Bearings

Open

Misalignments correct themselves on the fly in these bearings. Two rows of balls have separate raceways in the inner ring and a shared raceway in the outer ring, so the balls rock back and forth to compensate for misalignment. This construction also reduces noise and vibration.

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
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Misalignment Capability	Min.	Max., ° F	Inner Ring Type	Bearing Trade No.		Each
Open







				Steel

				40	90	23	1	6,650	6,700	4°	Not Rated	210	Standard	1308	6660K335	0000000

High-Load Crossed-Roller Bearings

The thicker inner and outer raceways on these bearings can handle heavier loads than the thin-profile crossed-roller bearings. The rollers face in alternating directions to allow for rigid, accurate motion under any combination of radial, thrust, and moment (twisting) loads. Use in applications where highly accurate motion is necessary, such as machine tools and industrial robots.

Open Bearing—Open bearings dissipate heat more efficiently than sealed bearings.

Sealed Bearing—Sealed bearings block out dust and other contaminants better than open bearings, but retain more heat.

				Combined Load Cap., lbf
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	Temp. Range, ° F	Features		Each
For Combined Radial, Thrust, and Moment Load—Open with Steel Ring



		60	90	13	4,200	5,450	1,000	Required	0 to 230	Lubrication Groove, Two Lubrication Holes	1378N12	0000000


		For Combined Radial, Thrust, and Moment Load—Sealed with Steel Ring



				60	90	13	4,200	5,400	800	Lubricated	0 to 210	Lubrication Groove, Two Lubrication Holes	1378N22	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.

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



	55	90	25	Steel	15,600	3,000	-40 to 250	Two Washers	7806K763	0000000


	65	90	18	Steel	9,300	3,500	-40 to 250	Two Washers	7806K723	000000

High-Load Cylindrical-Roller Thrust Bearings

Thick, pop-can-shaped rollers balance strength and speed. These bearings reduce friction and support heavier loads than ball or needle-roller thrust bearings.

They come as three separate pieces—one cage and two washers. The cage holds the rollers in place, while the washers create a surface for the rollers to run 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



	65	90	18	Nylon	24,050	3,700	-25 to 245	Two Washers	4300N23	0000000

Needle-Roller Thrust Bearings


Bearings	Washers

Small but mighty, our thinnest rolling thrust bearings slot into tight spaces and spin at whirring speeds. Their long, slender rollers support thrust loads and reduce friction in everything from machine tool spindles to gearboxes.

A cage holds the rollers in place. You can install these bearings without washers between hardened, ground surfaces for the thinnest profile. If you’re working with unhardened, unground surfaces, you’ll need two washers for the rollers to run on. This three-piece 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.

	Thrust Bearings										Thin Washers			Thick Washers
	For Shaft Dia., mm	OD, mm	Thk., mm	Cage Material	Dynamic Thrust Load Cap., lb.	Max. Rotation Speed, rpm	Temp. Range, ° F	Specs. Met		Each	Thk., mm		Each	Thk., mm		Each
Steel



		65	90	3	Steel	10,400	3,700	0 to 240	DIN 5405-2	5909K58	000000	1	5909K582	00000	5.25	5909K583	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



	60	90	5	9,500 lb. @ 30 rpm	Synthetic Oil	-35 to 300	2011N145	000000

Washers for Needle-Roller Thrust Bearings

These hardened steel washers protect softer shafts and housings from the rolling contact of needle rollers. Without them, needle rollers can indent and score unhardened surfaces, leading to premature wear and bearing failure. Positioned between the bearing and each mating surface, these washers distribute thrust loads evenly and extend service life. They adapt needle-roller thrust bearings for unhardened, unground surfaces.

For Shaft Dia., mm	OD, mm	Thk., mm	Washer Material	Specs. Met		Each
65	90	1	Steel	DIN 5405-3, ISO 303	5909K582	00000
65	90	5.25	Steel	—	5909K583	00000

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



	60	90	66	54,700	363	Clamping Screws	1070N19	0000000

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



	60	90	32	24,800	360	Clamping Screws	5515N18	0000000

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



	40	90	5	Not Rated	-350 to 500	2872T67	000000

High-Temperature Linear Ball Bearings

The choice for low-friction motion in high-temperature environments. Bearings are for use with round end-supported shafts and have a fixed-alignment design for applications where shaft misalignment is unlikely. To install, slide bearings into a housing (not included).

Fixed Alignment


With Retaining Ring Grooves

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

	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	Dynamic Load Cap. @ Temp.	Min.	Max.	For Shaft Material		Each	Pkg. Qty.		Pkg.
Steel Bearings with Steel Balls



		60	110	90	90.000 mm to 90.035 mm	Yes	85	No	1,050	2,200	1,050 lb. @ 230° F	-4	230	Stainless Steel, Steel	63255K93	0000000	1	98541A210	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







	70 mm ID × 90 mm OD

	0.1	-0.013 to 0.013	-0.3 to 0.3	-0.13 to -0.03	Rockwell B70	—	1	98089A513	00000


	0.2	-0.023 to 0.023	-0.3 to 0.3	-0.13 to -0.03	Rockwell B70	—	1	98089A634	0000
	0.3	-0.055 to 0.055	-0.3 to 0.3	-0.13 to -0.03	Rockwell B70	—	1	98089A746	0000
	0.5	-0.064 to 0.064	-0.3 to 0.3	-0.13 to -0.03	Rockwell B70	—	1	98089A858	0000
	1	-0.105 to 0.105	-0.3 to 0.3	-0.13 to -0.03	Rockwell B70	—	1	98089A970	0000


	Carbon Steel







					70 mm ID × 90 mm OD

					0.5	-0.064 to 0.064	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	10	3088A079	00000


					1	-0.105 to 0.105	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	5	3088A099	0000
					1.5	-0.14 to 0.14	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	1	3088A2	0000
					2	-0.21 to 0.21	-0.3 to 0.3	-0.5 to 0.5	Rockwell B40	—	1	3088A401	0000


					Stress-Resistant Spring Steel







									70 mm ID × 90 mm OD

									0.2	-0.04 to 0	0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	5	98055A513	0000


									0.3	-0.05 to 0	0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	5	98055A515	0000
									0.5	-0.05 to 0	0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	5	98055A517	0000
									1	-0.05 to 0	0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	5	98055A519	00000
									2	-0.05 to 0	0.03 to 0.4	-0.47 to -0.04	Rockwell B85	DIN 988	1	98055A590	0000

Bearing Nuts

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.

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.

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	For Lock Washer Specs. Met		Each
Carbon Steel







				Stepped Face

				M60 × 1.5 mm	Extra Fine	90	13	DIN 1804	DIN 462	3564N31	000000

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

				M60 × 1.5 mm	Extra Fine	90	13	DIN 1816	3549N32	000000