42mm 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., 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

				15	42	13	1	2,650	25,000	-20	230	Standard	6302	5972K117	000000


				20	42	8	1	1,650	26,000	-20	230	Standard	16004	5972K218	00000
				25	42	9	1	1,550	16,000	-20	230	Standard	6905	5972K246	00000
				30	42	7	1	1,000	15,000	-20	230	Standard	6806	5972K217	00000




						Corrosion-Resistant 440C Stainless Steel

						20	42	12	1	1,750	20,000	-40	240	Standard	6004	6153K134	00000




								Highly Corrosion-Resistant 316 Stainless Steel

								20	42	12	Not Rated	230	800	-40	140	Standard	6004	5908K56	00000


								Shielded







												Steel

												15	42	13	1	2,550	18,000	-20	230	Standard	6302-2Z	5972K348	00000


												15	42	13	3	2,650	19,000	-20	230	Standard	6302-2Z	6661K63	00000
												20	42	8	1	1,550	14,000	-20	230	Standard	16004-2Z	5972K266	00000
												20	42	12	3	2,200	19,000	-20	230	Standard	6004-2Z	6661K17	00000
												25	42	9	1	1,550	16,000	-20	230	Standard	6905-2Z	5972K169	00000
												30	42	7	1	1,000	15,000	-20	230	Standard	6806-2Z	5972K159	00000




														Corrosion-Resistant 440C Stainless Steel

														15	42	13	1	2,150	18,000	-40	240	Standard	6302-2Z	6153K156	00000


														20	42	12	1	1,750	17,000	-40	240	Standard	6004-2Z	6153K159	00000
														25	42	9	1	1,550	16,000	-40	150	Standard	6905-2Z	6656K211	00000
														30	42	7	1	1,000	15,000	-40	150	Standard	6806-2Z	6656K213	00000


														Sealed







														Steel

														15	42	13	1	2,980	17,700	-4	230	Standard	6302-2RS	5972K987	00000


														15	42	13	3	2,650	12,000	-30	210	Standard	6302-2RS	6661K123	00000
														15	42	17	1	2,650	12,000	-20	230	Standard	62302-2RS	5972K233	00000
														20	42	12	3	2,200	11,000	-20	210	Standard	6004-2RS	6661K87	00000
														25	42	9	1	1,550	16,000	-20	230	Standard	6905-2RS	5972K292	00000
														30	42	7	1	1,000	15,000	-20	230	Standard	6806-2RS	5972K282	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.

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

				15	42	13	1	1,950	10,500	10	200	Standard	6302	2349K713	000000


				20	42	12	1	1,750	9,600	10	200	Standard	6004	2349K216	00000
				25	42	9	1	1,550	8,500	10	200	Standard	6905	2349K738	00000
				30	42	7	1	360	8,300	10	200	Standard	6806	2349K732	00000




						Corrosion-Resistant 440C Stainless Steel

						15	42	13	1	1,950	10,000	-10	200	Standard	6302	4668K207	00000


						20	42	12	1	1,600	9,000	-10	200	Standard	6004	4668K185	00000
						25	42	9	1	1,550	9,000	-10	200	Standard	6905	4668K169	00000
						30	42	7	1	1,000	8,000	-10	200	Standard	6806	4668K158	00000


						Sealed







										Steel

										15	42	13	1	1,950	10,500	10	200	Standard	6302-2RS	2349K768	00000


										20	42	12	1	1,750	9,600	10	200	Standard	6004-2RS	2349K416	00000
										25	42	9	1	1,570	8,900	10	200	Standard	6905-2RS	2349K794	00000
										30	42	7	1	790	8,300	10	200	Standard	6806-2RS	2349K787	00000




												Corrosion-Resistant 440C Stainless Steel

												15	42	13	1	1,950	10,000	-10	200	Standard	6302-2RS	4668K315	00000


												20	42	12	1	1,600	9,000	-10	200	Standard	6004-2RS	4668K293	00000
												25	42	9	1	1,550	9,000	-10	200	Standard	6905-2RS	4668K279	00000
												30	42	7	1	1,000	8,000	-10	200	Standard	6806-2RS	4668K268	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

				15	42	13	1	2,150	10,000	-40	200	Standard	FDA Compliant 21 CFR 178.3570	6302-2RS	4648K221	000000


				20	42	12	1	1,750	9,000	-40	200	Standard	FDA Compliant 21 CFR 178.3570	6004-2RS	4648K205	00000
				25	42	9	1	1,300	9,000	-40	200	Standard	FDA Compliant 21 CFR 178.3570	6905-2RS	4648K242	000000
				30	42	7	1	850	8,000	-40	200	Standard	FDA Compliant 21 CFR 178.3570	6806-2RS	4648K233	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.
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Bearing Trade No.	Dynamic	Static	Dynamic, lb.	Static	Max. Rotation Speed, rpm	Lubrication	Temp. Range, ° F		Each
For Combined Radial and Thrust Load—Open with Steel Ring



		15	42	11	30302	1,400	4,950	680	4,100 lb.	5,700	Required	-60 to 200	6677K51	000000


		15	42	11	30302	5,350	4,850	2,500	Not Rated	9,000	Required	-50 to 300	6677K84	00000

High-Precision Angular Contact Ball Bearings

Open

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.

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

				20	42	12	7	Steel	1,950	43,000	Required	15°	-30	140	7004	2385K44	0000000

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

				15	42	13	1	2,150	16,000	4°	Not Rated	210	Standard	1302	6660K322	000000


				15	42	17	1	2,750	14,000	4°	Not Rated	210	Standard	2302	6660K323	000000

Flanged Ball Bearings

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.

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
Shielded







				Steel

				25	42	9	45	2	1	1,550	16,000	-50	300	Standard	6905-2Z	4390N179	000000


				30	42	7	45	1.5	1	1,000	15,000	-50	300	Standard	6806-2Z	4390N181	00000

Angular Contact Ball Bearings

Single Row

Open

Single 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.

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

				15	42	13	3	Steel	2,900	20,000	Required	40°	-40	300	7302	6680K24	000000




						Sealed

						15	42	13	1	Steel	3,150	11,000	Lubricated	40°	-20	230	7302-2RS	6680K44	000000

Electrical Insulating Ball Bearings

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.

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
Sealed







				Steel

				20	42	12	1	2,200	19,000	-40	210	6004-2RS	1389N15	0000000

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.

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

				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



		35	42	12	2,900	4,750	7,500	Required	8	-20 to 280	DIN 618, ISO 3245	5905K556	000000


		35	42	20	5,400	10,300	7,500	Required	8	-40 to 280	DIN 618, ISO 3245	5905K363	00000


		For Radial Load—Sealed on Both Sides with Steel Ring



				35	42	20	5,400	10,300	4,450	Lubricated	8	-20 to 210	DIN 618, ISO 3245	5905K364	00000

Dry-Running Ball Bearings

Made of naturally slippery plastic so there's no lubricant to maintain or make a mess. These bearings are ideal for spic-and-span spaces since oil won't drip off, wash out, or collect dust over time. They won't rust or warp from moisture, so they stand up to thorough cleanings.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, reducing wear and extending the life of the bearing.

Acetal—The most common choice for plastic bearings, acetal is economical yet still stands up to daily wear and tear.

316 Stainless Steel Balls—Won't corrode from salt water or harsh chemicals, such as bleach and chlorine found in cleaning solutions.

Glass Balls—Nonmagnetic, so they won't interfere with sensors and other sensitive electronics.

						Temp. Range, ° F				316 Stainless Steel Balls		Glass Balls
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Dynamic Radial Load Cap., lb.	Max. Rotation Speed, rpm	Min.	Max.	ABEC Rating	Bearing Trade No.		Each		Each
Open







				Acetal

				20	42	8	75	800	-40	180	Not Rated	16004	———	0	6455K194	000000


				20	42	12	75	800	-40	180	Not Rated	6004	6455K142	000000	6455K151	00000

Combination Ball/Needle-Roller Bearings

A built-in thrust ball bearing reduces wear from adjacent shaft components, while the needle rollers support high radial loads. Install anywhere you would use separate bearings for radial and thrust loads.

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



		30	42	30	48	11	4,550	7,750	4,200	7,550	5,600	Required	8	-20 to 230	Lubrication Groove, Lubrication Hole	1418N106	0000000

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.

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



	36	42	22	2,450 lb. @ 30 rpm	Synthetic Oil	-35 to 300	6658K285	000000

One-Way Locking Needle-Roller Bearing Clutches

Single-Row

Bearing

The needles in these bearings roll freely in one direction, but lock to transmit torque when the rotation of the shaft is reversed. Also known as drawn-cup roller clutches. An arrow on the lip indicates the rotational direction that locks the bearings.

Single-Row Bearing—Single-row bearings do not support loads from any direction. To support radial loads, use with our Needle-Roller Bearings.

	Ring Material	Max. Rotation Speed, rpm	Max. Torque, ft·lbf	Lubrication	For Shaft Surface Smoothness, Ra, μin	Temp. Range, ° F		Each
Single-Row Bearing







	Steel Springs

	35	42	20	Steel	3,900	85	Required	16	10 to 150	6392K52	000000