2 1/8" Housing ID Bearings

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.

Highly-Corrosion-Resistant 316 Stainless Steel—The most corrosion-resistant metal bearings we offer. They won't pit or weaken from salt water or harsh chemicals, such as bleach and chlorine found in cleaning solutions.

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.	For Housing ID	Wd.	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Open







				Steel

				1 1/8"	2 1/8"	3/8"	1	2,150	15,000	-20	230	Standard	R18	000000000	000000




						Highly-Corrosion-Resistant 316 Stainless Steel

						1 1/8"	2 1/8"	1/2"	Not Rated	270	720	-40	140	Standard	R18	00000000	00000


						Shielded







										Steel

										1 1/8"	2 1/8"	1/2"	1	2,150	15,000	-20	230	Standard	R18-2Z	000000000	00000


										Sealed







														Corrosion-Resistant 440C Stainless Steel

														1 1/8"	2 1/8"	1/2"	1	1,900	8,000	-20	210	Standard	R18-2RS	00000000	00000

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.

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.	For Housing ID	Wd.	ABEC Rating	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	Inner Ring Type	Bearing Trade No.		Each
Open







				Steel

				1 1/8"	2 1/8"	3/8"	1	2,250	7,000	10	200	Standard	R18	0000000	000000

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



		1 3/4"	2 1/8"	1"	9,300	17,000	5,800	Required	8	-40 to 280	00000000	000000

Oil-Embedded 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.

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.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

Mineral Oil Base—Mineral oil consistently lubricates at most temperatures but doesn’t last as long as synthetic oil.

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	Lg.	Dynamic Radial Load Cap. @ Speed	Base Oil	Temp. Range, ° F		Each
841 Bearing Bronze



	1 3/4"	2 1/8"	1/2"	1,750 lb. @ 30 rpm	Synthetic Oil	-35 to 300	00000000	00000


	1 3/4"	2 1/8"	1 1/2"	5,250 lb. @ 30 rpm	Synthetic Oil	-35 to 300	00000000	00000
	1 3/4"	2 1/8"	2"	7,000 lb. @ 30 rpm	Synthetic Oil	-35 to 300	00000000	00000
	1 3/4"	2 1/8"	2 1/2"	8,750 lb. @ 30 rpm	Synthetic Oil	-35 to 300	00000000	00000
	1 15/16"	2 1/8"	2"	7,750 lb. @ 30 rpm	Synthetic Oil	-35 to 300	00000000	00000
	1 15/16"	2 1/8"	2 1/2"	9,650 lb. @ 30 rpm	Mineral Oil	10 to 220	00000000	00000