80mm 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

				35	80	21	1	7,500	12,200	-20	230	Standard	6307	5972K503	000000


				40	80	18	1	5,550	8,300	-20	230	Standard	6208	5972K114	00000
				55	80	13	1	3,700	10,000	-50	130	Standard	6911	6656K147	00000




						Corrosion-Resistant 440C Stainless Steel

						50	80	16	1	3,000	9,900	-40	240	Standard	6010	6153K148	000000


						Shielded







										Steel

										35	80	21	1	7,950	8,500	-20	230	Standard	6307-2Z	5972K354	00000


										35	80	21	3	7,850	9,500	-20	230	Standard	6307-2Z	6661K68	00000
										40	80	18	1	6,500	8,500	-20	230	Standard	6208-2Z	5972K344	00000
										40	80	18	3	7,300	9,000	-20	230	Standard	6208-2Z	6661K49	00000
										50	80	16	1	4,900	10,000	-20	230	Standard	6010-2Z	5972K272	00000
										50	80	16	3	5,150	9,000	-20	230	Standard	6010-2Z	4481N19	000000
										55	80	13	1	3,700	8,700	-40	150	Standard	6911-2Z	6656K235	00000




												Corrosion-Resistant 440C Stainless Steel

												35	80	21	1	6,350	9,400	-40	240	Standard	6307-2Z	6153K168	000000


												40	80	18	1	4,000	9,100	-40	240	Standard	6208-2Z	6153K171	000000
												50	80	16	1	3,000	8,400	-40	240	Standard	6010-2Z	6153K174	000000


												Sealed







																Steel

35	80															21	1	7,500	5,400	-20	230	Standard	6307-2RS	5972K59	00000


35	80															21	3	7,850	6,000	-30	210	Standard	6307-2RS	6661K128	00000
40	80	18														1	6,500	5,000	-20	230	Standard	6208-2RS	5972K49	00000
40	80	18	3													7,300	5,600	-30	210	Standard	6208-2RS	6661K109	00000
50	80	16	1													4,900	4,400	-20	230	Standard	6010-2RS	5972K234	00000
50	80	16	3													5,150	5,600	-30	210	Standard	6010-2RS	4481N66	000000




		Corrosion-Resistant 440C Stainless Steel

		40	80													18	1	6,500	5,200	-20	210	Standard	6208-2RS	6138K111	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

				35	80	21	1	5,750	5,000	10	200	Standard	6307	2349K718	000000


				40	80	18	1	5,050	5,000	10	200	Standard	6208	2349K706	00000




						Corrosion-Resistant 440C Stainless Steel

						40	80	18	1	5,050	5,000	-10	200	Standard	6208	4668K202	000000


						Sealed







										Steel

										35	80	21	1	5,750	5,000	10	200	Standard	6307-2RS	2349K774	000000


										40	80	18	1	5,050	5,000	10	200	Standard	6208-2RS	2349K761	00000
										50	80	16	1	3,750	4,500	10	200	Standard	6010-2RS	2349K751	00000




												Corrosion-Resistant 440C Stainless Steel

												40	80	18	1	5,050	5,000	-10	200	Standard	6208-2RS	4668K309	000000


												50	80	16	1	3,750	4,000	-10	200	Standard	6010-2RS	4668K299	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

				35	80	21	3	Steel	8,750	10,000	Required	40°	-40	300	7307	6680K29	0000000


				40	80	18	3	Steel	8,450	11,000	Required	40°	-40	300	7208	6680K19	000000
				50	80	16	5	Steel	6,050	18,000	Required	15°	-40	250	7010	2385K106	000000




						Sealed

						40	80	18	1	Steel	7,600	5,000	Lubricated	40°	-20	230	7208-2RS	6680K43	000000


						Double Row







										Open

										40	80	30.2	3	Steel	10,600	8,000	Required	30°	-40	250	3208	8828T119	000000




												Shielded

												40	80	30.2	3	Steel	10,600	8,000	Lubricated	30°	-40	300	3208-2Z	8828T219	000000




														Sealed

														40	80	30.2	3	Steel	10,600	5,600	Lubricated	30°	-40	210	3208-2RS	8828T319	000000

Tapered-Roller Bearings

Found anywhere from machine tool spindles to conveyor rollers, these bearings have a two-piece design that allows for adjustment.

					Radial Load Cap., lb.		Thrust Load Cap., lb.
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Bearing Trade No.	Dynamic	Static	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	Temp. Range, ° F		Each
For Combined Radial and Thrust Load—Open with Steel Ring



		50	80	19	33010	4,650	25,200	2,500	23,300	2,200	Required	-60 to 200	6677K79	0000000

Self-Aligning Ball Bearings

Open

Sealed

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.

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	Misalignment Capability	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Open







				Steel

				35	80	21	1	5,650	7,500	4°	Not Rated	210	Standard	1307	6660K333	0000000


				35	80	31	1	8,900	12,000	3°	-30	210	Standard	2307	6660K56	000000
				40	80	18	1	4,300	7,500	4°	Not Rated	210	Standard	1208	6660K334	00000
				40	80	23	1	7,150	11,000	2.5°	-30	210	Standard	2208	6660K21	000000


				Sealed







								Steel

								35	80	31	1	5,950	5,600	1.5°	-30	210	Standard	2307-2RS	6660K76	000000


								40	80	23	1	4,450	5,600	1.5°	-30	210	Standard	2208-2RS	6660K69	000000

Square-Bore Ball Bearings

The inside corners of these bearings grip square shafts as they turn, so you don't need set screws to hold them in place. They're a good choice when your setup needs to come apart frequently, since there aren't extra mounting steps.

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.

Extended Inner Ring—Connect to mating parts without the need for a spacer. The inner ring juts out farther than the outer ring, so shaft collars and other objects won't touch the bearing's moving parts.

							Temp. Range, ° F
	For Shaft Wd., 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
Sealed







				Steel

				26	80	18	1	7,300	500	-20	200	Extended	W208PP6	4469N11	000000


				29.5	80	18	1	7,300	500	-20	200	Extended	W208PP5	4469N12	00000

Maintenance-Free Turntable Bearings

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.

	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



		890	3,350	130	500	70	80	20	24	Anodized Aluminum	Plain	PTFE	Sleeve	No	8700K41	0000000

Electrically Insulating Ball Bearings

Shielded

Sealed

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.

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			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

				35	80	21	1	9,100	12,600	-20	245	6307-2Z	1389N56	0000000


				40	80	18	1	6,500	12,000	-20	250	6208-2Z	1389N36	000000


				Sealed







								Steel

								40	80	18	1	7,300	11,000	-40	210	6208-2RZ	1389N25	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



		40	80	23	22208	Steel	25,400	22,300	6,700	Required	390	2721T4	0000000

Cylindrical Roller Bearings

With cylindrical rollers to distribute load over a large surface area, these bearings are often used to support heavy loads at high speeds in applications such as power generation and metal recycling. A cage prevents the rollers from touching each other, reducing friction for high-speed use. All of these bearings have an inner ring that's flanged on one side, so they only allow heat expansion in one direction. The bearings can be taken apart, so you can install them with precision and quickly dismantle them for maintenance or replacement.

				Radial Load Cap., lb.		Thrust Load Cap.
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Dynamic	Static	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	For Shaft Surface Smoothness, Ra, μm	Temp. Range, ° F	Specs. Met		Each
For Combined Radial and Thrust Load—Open with Steel Ring



		40	80	18	14,150	11,900	Not Rated	Not Rated	10,900	Required	0.8	-20 to 245	DIN 5412-1	3635N114	0000000

High-Load Face-Mount Crossed-Roller Bearings

With thicker inner and outer raceways, these bearings can handle heavier loads than thin-profile crossed roller bearings. Mounting holes on the inner and outer rings allow for fastening onto hollow joints and shafts. 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



		25	80	12	1,900	2,350	1,400	Required	0 to 230	Lubrication Groove, Two Lubrication Holes	2010N13	0000000


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



				25	80	12	1,900	2,350	1,100	Lubricated	0 to 210	Lubrication Groove, Two Lubrication Holes	2010N23	000000

Quick-Mount Ball Bearings

Set-Screw

Shaft Mount

Clamp-On 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.

Clamp-On Shaft Mount—The clamp tightens around the shaft for a strong 360° grip. These mounts attach more securely than set screws to reduce vibration. Plus, there aren't any screws pressing into the shaft, so it stays free from damage. Also known as a concentric lock.

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

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.

				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

				40	80	27.8	86.5	1.6	Sealed	1	7,300	4,150	-20	220	ER208	5629N15	0000000


				Clamp-On Shaft Mount







								Black-Oxide Steel

								40	80	28	88	1.6	Shielded	1	7,300	4,150	-20	220	ER208	6821N55	000000

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

				40	80	18	7	Steel	8,500	19,200	Required	15°	-40	245	7208	4487N28	0000000


				50	80	16	7	Steel	6,650	17,000	Required	15°	-30	140	7010	2385K51	000000




						Sealed

						50	80	16	7	Steel	6,100	17,700	Lubricated	15°	0	230	7010	4487N15	000000

One-Way-Locking Ball Bearings

Shielded

Sealed

Prevent shafts from reversing direction. These bearings have internal components (sprags) that lock against the outer ring to transmit torque one way but spin freely in the other. They're often found in backstopping, indexing, and overrunning applications. For example, they're used to prevent conveyors from reversing.

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	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Max. Torque, ft·lbf	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Shielded







				Steel

				40	80	22	1	2,010	3,000	305	-40	170	Standard	FZ 6208	4752N92	0000000


				Sealed







								Steel

								40	80	27	1	2,010	3,000	305	-40	170	Standard	FZ 6208 2RS	4752N33	000000

High-Temperature Graphite-Lubricated Ball Bearings

Keep parts spinning in industrial ovens and other places as hot as 660° F. Greased with graphite lubricant, these bearings stay slippery where oil would burn off or solidify. You can install and forget them since the lubricant lasts forever.

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
	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

				40	80	18	1	7,300	150	-70	660	Standard	6208-2Z	1258N35	0000000

Tapered-Bore Ball Bearings

Mount these bearings on tapered shafts. Or, pair with an adapter sleeve to install them on round shafts without needing to press fit. The 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.

	Bearings														Adapter Sleeves
									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	Rate of Taper	Min.	Max., ° F	Inner Ring Type	Bearing Trade No.		Each	For Shaft Dia., mm		Each
Open







				Steel

				40	80	18	1	4,300	7,500	4°	1:12	Not Rated	240	Standard	1208K	7755N28	000000	35	4449N21	000000


				40	80	23	1	5,000	7,500	4°	1:12	Not Rated	240	Standard	2208K	7755N29	000000	35	4449N23	00000

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

				35	80	21	1	6,350	5,000	-40	200	Standard	FDA Compliant 21 CFR 178.3570	6307-2RS	4648K226	0000000

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



		890	3,350	130	500	70	80	20	24	Stainless Steel	Plain	Plastic	Sleeve	No	FDA Compliant 21 CFR 177.1550	7752N11	000000000

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



		50	80	13	3,850	4,650	1,150	Required	0 to 230	Lubrication Groove, Two Lubrication Holes	1378N11	0000000


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



				50	80	13	3,850	4,600	900	Lubricated	0 to 210	Lubrication Groove, Two Lubrication Holes	1378N21	000000

Quick-Mount Ball Bearings for Food and Beverage

Clamp-On Shaft

Mount

You don't need any special tools to install these bearings in food production areas. Slip them onto a shaft and secure with the turn of a screw for easy mounting. Greased with NSF-registered H1 lubricant, these bearings are safe to install on food-processing equipment, such as conveyor belts, so long as they don’t directly touch the food. They're IP69K rated, so they'll stand up to the hot water from a pressure washer when cleaning your facility at the end of the day.

Corrosion-Resistant Nickel-Plated Steel—These bearings resist mild chemicals, such as the ammonia in cleaning solutions, while maintaining the strength of steel. The nickel coating can wear or chip over time, though. If it does, the steel beneath will rust quickly.

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.	Enclosure Rating	Food Industry Std.		Each
Clamp-On Shaft Mount







				Corrosion-Resistant Nickel-Plated Steel

				40	80	27.8	86.5	1.6	Sealed	1	7,300	1,750	-20	220	IP69K	NSF Registered H1	7177N29	0000000

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



		M60 × 2 mm	Extra Fine	80	13.5	210	—	———	0	3552N48	0000000	———	0	———	0


		M60 × 2 mm	Extra Fine	80	15	160	ISO 2982-2	5197N117	000000	———	0	5197N138	000000	5510N161	0000000

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







				Chamfered Face

				M60 × 2 mm	Extra Fine	80	11	DIN 981, ISO 2982	DIN 5406	3554N24	000000	90391A124	00000	5510N188	0000000




						Stepped Face

						M55 × 1.5 mm	Extra Fine	80	13	DIN 1804	DIN 462	3564N29	00000	———	0	———	0

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



	50	80	66	36,400	363	Clamping Screws	1070N17	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



	50	80	32	17,700	360	Clamping Screws	5515N16	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

				M52 × 1.5 mm	Extra Fine	80	13	DIN 1816	3549N29	000000


				M55 × 1.5 mm	Extra Fine	80	13	DIN 1816	3549N31	00000