160 mm 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.

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.

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







				Steel

				75	160	37	3	26,700	4,500	-20	230	Standard	6315-2Z	4481N55	0000000


				90	160	30	3	22,700	4,300	-20	230	Standard	6218-2Z	4481N45	000000


				Sealed







								Steel

								75	160	37	3	26,700	2,800	-30	210	Standard	6315-2RS	4481N95	000000


								90	160	30	3	22,700	2,600	-30	210	Standard	6218-2RS	4481N88	000000

Maintenance-Free Turntable Bearings


	Turntable Bearings with Gear Teeth

With low-friction internal sleeves made of PTFE, these bearings never need lubrication. Also known as slewing-ring bearings, they’re used for slow, controlled rotation. You’ll often see them rotating hoists, robotic arms, and other heavy machinery. They have holes on both the inner and outer ring, so they’re easy to align and mount.

Note: Listed capacities only apply when bearings are mounted parallel to the ground. These bearings can be mounted in other orientations, but their capacities will be reduced.

Turntable Bearings with Gear Teeth—Bearings with gear teeth can be driven by a spur gear. For components to mesh correctly, they must have the same pressure angle and module.

	Thrust Load Cap., lb.		Radial Load Cap., lb.									Bearing
	Dynamic	Static	Dynamic	Static	Static Moment Load Cap., ft·lbf	OD, mm	ID, mm	Overall Ht., mm	Gear Module	Pressure Angle	Material	Type	Material	Plain Bearing Type	Mounting Fasteners Included		Each
For Combined Radial, Thrust, and Moment Loads







				Turntable Bearings

				3,350	11,200	670	2,200	590	160	60	33	—	—	Anodized Aluminum	Plain	PTFE	Sleeve	No	8700K2	0000000




						Turntable Bearings with Gear Teeth

						2,200	8,950	560	1,750	440	160	50	33	2	20°	Anodized Aluminum	Plain	PTFE	Sleeve	No	8700K113	000000

Spherical-Roller Bearings

Two rows of rollers give these bearings dynamic radial load capacities over five times higher 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



		90	160	40	22218	Steel	80,750	88,750	3,200	Required	390	2721T15	0000000

Low-Profile Maintenance-Free Turntable Bearings

At 16 mm tall, these bearings are about the height of your typical plastic water bottle cap, so they won’t bulk up your builds. They handle radial, thrust, and moment loads. Often used to oscillate heavy equipment, find them rotating hoists or spinning components on robotic arms. The internal sleeve moves smoothly and will never require lubrication. For easy alignment and mounting, these bearings have holes on both the inner and outer ring. They’re also known as slewing-ring bearings.

Note: Listed capacities only apply when bearings are mounted parallel to the ground. Otherwise, they reduce when bearings are tilted.

	Thrust Load Cap., lb.		Radial Load Cap., lb.							Bearing
	Dynamic	Static	Dynamic	Static	Static Moment Load Cap., ft·lbf	OD, mm	ID, mm	Overall Ht., mm	Material	Type	Material	Plain Bearing Type	Mounting Fasteners Included		Each
For Combined Radial, Thrust, and Moment Loads



		1,100	4,450	330	330	330	160	100	16	Anodized Aluminum	Plain	PTFE	Sleeve	No	7738N13	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



		110	160	20	11,750	17,400	550	Required	0 to 245	—	4489N15	0000000


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



				110	160	20	11,750	17,400	440	Lubricated	0 to 245	Lubrication Groove, Two Lubrication Holes	4489N23	000000

Food and Beverage Maintenance-Free Turntable Bearings

Made of stainless steel and plastic, these bearings are FDA compliant for direct contact with food. Their low-friction internal sleeves never need to be lubricated. Often used to turn conveyors or spin mixers, these bearings are designed for slow, controlled rotation. They have holes on both the inner and outer ring, so they’re easy to align and mount. They’re also known as slewing-ring bearings.

Note: Listed capacities only apply when bearings are mounted parallel to the ground. These bearings can be mounted in other orientations, but their capacities will be reduced.

	Thrust Load Cap., lb.		Radial Load Cap., lb.							Bearing
	Dynamic	Static	Dynamic	Static	Static Moment Load Cap., ft·lbf	OD, mm	ID, mm	Overall Ht., mm	Material	Type	Material	Plain Bearing Type	Mounting Fasteners Included	Food Industry Std.		Each
For Combined Radial, Thrust, and Moment Loads



		3,350	11,200	670	2,200	590	160	60	33	Stainless Steel	Plain	Plastic	Sleeve	No	FDA Compliant 21 CFR 177.1550	7752N12	000000000

Static-Control Maintenance-Free Turntable Bearings

Image of Product. Front orientation. Turntable Bearings. Maintenance-Free, Static Control.

Safe enough to rotate equipment in microchip and semiconductor manufacturing, these bearings prevent harmful static buildup. They’re made from stainless steel and have specially formulated PTFE sleeves that work together to drain static. Make sure your set up provides a path to the ground.

Also known as slewing-ring bearings, these bearings are great for turning heavy equipment in a slow and controlled way. Their sleeves are also slippery, so they move smoothly and don't require lubrication. For alignment and mounting, they have holes on both the inner and outer ring.

Note: Listed capacities only apply when bearings are mounted parallel to the ground. These bearings can be mounted in other orientations, but their capacities will be reduced.

	Thrust Load Cap., lb.		Radial Load Cap., lb.							Bearing
	Dynamic	Static	Dynamic	Static	Static Moment Load Cap., ft·lbf	OD, mm	ID, mm	Overall Ht., mm	Material	Type	Material	Plain Bearing Type	Mounting Fasteners Included	Performance		Each
For Combined Radial, Thrust, and Moment Loads



		3,350	11,200	670	2,200	590	160	60	33	Stainless Steel	Plain	PTFE	Sleeve	No	Antistatic	7706N103	000000000

Bearing Nuts

Carbon Steel

Chamfered 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.

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

				M125 × 2 mm	Extra Fine	160	21	DIN 981, ISO 2982	DIN 5406	3554N38	000000	90391A138	000000