23mm Housing ID 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.

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

				17	23	4	1	220	15,000	-10	200	Standard	6703	00000000	000000


				Sealed







								Corrosion-Resistant 440C Stainless Steel

								17	23	4	1	220	15,000	-10	200	Standard	6703-2RS	00000000	00000

Ball Bearings

Open

Shielded

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.

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

				17	23	4	1	220	11,000	-50	130	Standard	6703	0000000	000000




						Corrosion-Resistant 440C Stainless Steel

						17	23	4	1	220	11,000	-50	130	Standard	6703	0000000	00000


						Shielded







										Steel

										17	23	4	1	220	9,500	-40	150	Standard	6703-2Z	00000000	00000




												Corrosion-Resistant 440C Stainless Steel

												17	23	4	1	220	9,500	-40	150	Standard	6703-2Z	00000000	00000

Needle-Roller Bearings

Also known as drawn-cup roller bearings, these are our thinnest roller bearings. The outer ring is drawn out to form a lip that holds the bearing together. Bearings take on the shape of their housing and may be oblong prior to installation.

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

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



		17	23	12	1,750	2,300	14,700	Required	8	-40 to 280	DIN 618, ISO 3245	00000000	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-Low-Friction Rulon J—These bearings glide effortlessly for applications with frequent starts and stops, such as conveyor systems.

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		Each
Ultra-Low-Friction Rulon J



	17	23	20	29	3	370 lb. @ 60 rpm	270 lb. @ 60 rpm	Gold	-400 to 500	00000000	000000


	Moisture-Resistant Ultra-Low-Friction Plastic Blend



			20	23	11.5	30	1.5	270 lb. @ 60 rpm	310 lb. @ 60 rpm	Yellow	-50 to 190	00000000	0000


			20	23	15.5	30	1.5	370 lb. @ 60 rpm	310 lb. @ 60 rpm	Yellow	-50 to 190	00000000	0000
			20	23	21.5	30	1.5	520 lb. @ 60 rpm	310 lb. @ 60 rpm	Yellow	-50 to 190	00000000	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

				17	23	4	24.5	0.8	1	220	11,000	-50	280	Standard	6703	00000000	000000


				Shielded







								Steel

								17	23	4	24.5	0.8	1	220	9,500	-50	300	Standard	6703-2Z	00000000	00000

Dry-Running Metal-Reinforced Plastic Sleeve Bearings

Combine slippery plastic with the strength of metal. The PTFE core is naturally slippery, so you’ll never have to add lubricant. These bearings also keep your workspace clean with no lubricant to drip or flake and attract dust. Compared to all-metal bearings, they are lighter.

With no moving parts, sleeve bearings are the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.

Bronze-Backed PTFE with Steel Shell—A good all-around, economical choice. Although these bearings are stronger than aluminum, they can only be used in dry environments where corrosion is not a concern.

	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Temp. Range, ° F		Each
Bronze-Backed PTFE with Steel Shell



	20	23	20	2,500 lb. @ 60 rpm	-320 to 530	0000000	00000

Precision Needle-Roller Bearings


	Bearing

Install these bearings directly onto hardened and ground shafts. They have higher load capacity, speed, and accuracy than standard needle-roller bearings.

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

Shaft Liners—Shaft liners allow you to use the bearing on unhardened and unground shafts.

	Roller Bearings												Shaft Liners
				Radial Load Cap., lb.
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	For Shaft Surface Smoothness, Ra, μin	Temp. Range, ° F	Features		Each	For Shaft Dia., mm		Each
For Radial Load—Open with Steel Ring



		15	23	16	2,700	2,850	23,500	Required	4	0 to 245	Lubrication Groove, Lubrication Hole	0000000	000000	12	0000000	00000

Dry-Running Flanged Sleeve Bearings for Food and Beverage

Made of plastics permitted by the US FDA for contact with food, these bearings won’t release harmful, smelly, and distasteful impurities into your food or beverage production line. These self-lubricating plastics eliminate the need for oil, resulting in less maintenance and improved hygiene. You’ll find them inside food-processing equipment such as mixers, conveyors, and fillers.

Moisture-Resistant Plastic Blend—Similar to UHMW, these bearings will keep their shape after washdowns but won’t hold up to steam cleaning. They're bright blue so they are easy to spot if they fall into your production line.

	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	Specs. Met		Each
Moisture-Resistant Plastic Blend



	20	23	11.5	30	1.5	50 lb. @ 60 rpm	85 lb. @ 60 rpm	Blue	-50 to 190	FDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 178.3297	000000000	00000


	20	23	16.5	30	1.5	70 lb. @ 60 rpm	85 lb. @ 60 rpm	Blue	-50 to 190	FDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 178.3297	000000000	0000
	20	23	21.5	30	1.5	95 lb. @ 60 rpm	85 lb. @ 60 rpm	Blue	-50 to 190	FDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 178.3297	000000000	0000

Dry-Running Sleeve Bearings for Food and Beverage

With no moving parts, sleeve bearings are the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.

	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Color	Temp. Range, ° F	Specs. Met		Each
Moisture-Resistant Plastic Blend



	20	23	10	215 lb. @ 60 rpm	Blue	-50 to 190	FDA Compliant 21 CFR 177.1550	00000000	00000


	20	23	20	430 lb. @ 60 rpm	Blue	-50 to 190	FDA Compliant 21 CFR 177.1550	00000000	0000
	20	23	25	540 lb. @ 60 rpm	Blue	-50 to 190	FDA Compliant 21 CFR 177.1550	00000000	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



	20	23	11.5	30	1.5	710 lb. @ 60 rpm	1,200 lb. @ 60 rpm	Synthetic Oil	-35 to 300	00000000	000000