ABEC-5 Bearings | McMaster-Carr

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Shaft Diameter

Width

Ball Bearing Profile

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Cage Material

400 Series Stainless Steel

For Housing ID

Bearing Type

ABEC Rating

Bearing Trade Number

For Load Direction

Combined Radial and Thrust

Material

Bearing Construction

Ball Material

Shaft Mount Type

Shaft Type

Dynamic Radial Load Capacity

REACH

RoHS

DFARS Specialty Metals

Exempt

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Export Control Classification Number (ECCN)

1C999

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137 Products

Ball Bearing Profile

Standard

The most common profile for reducing friction between rotating parts

81 products

Flanged

Stay put in their housing when rocked by sudden thrust loads

56 products

Ball Bearing Type

Angular Contact

Support radial and thrust loads at the same time

6 products

Performance

Corrosion Resistant

Won't degrade from water or mild chemicals, such as ammonia

131 products

Ball 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.

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.

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.

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







				Corrosion-Resistant 440C Stainless Steel

				0.04"	1/8"	3/64"	5	20	140,000	-40	240	Standard	R09	57155K339	000000


				3/64"	5/32"	1/16"	5	30	120,000	-40	240	Standard	R0	57155K341	0000
				0.055"	3/16"	5/64"	5	50	110,000	-40	240	Standard	R1	57155K342	0000
				5/64"	1/4"	3/32"	5	70	80,000	-40	240	Standard	R1-4	57155K343	0000
				3/32"	3/16"	1/16"	5	40	95,000	-40	240	Standard	R133	57155K344	0000
				3/32"	5/16"	7/64"	5	120	71,000	-40	240	Standard	R1-5	57155K345	0000
				1/8"	1/4"	3/32"	5	60	80,000	-40	240	Standard	R144	57155K346	0000
				1/8"	5/16"	7/64"	5	120	71,000	-40	240	Standard	R2-5	57155K347	0000
				1/8"	3/8"	7/64"	5	140	63,000	-40	240	Standard	R2-6	57155K348	0000
				1/8"	3/8"	5/32"	5	140	67,000	-10	240	Standard	R2	57155K349	0000
				5/32"	5/16"	7/64"	5	80	63,000	-40	240	Standard	R155	57155K351	0000


				3/16"	5/16"	7/64"	5	80	63,000	-40	240	Standard	R156	57155K352	0000
				3/16"	3/8"	1/8"	5	160	60,000	-40	240	Standard	R166	57155K353	0000
				3/16"	1/2"	5/32"	5	290	50,000	-10	240	Standard	R3	57155K354	0000
				1/4"	3/8"	1/8"	5	80	56,000	-40	240	Standard	R168	57155K355	0000
				1/4"	1/2"	1/8"	5	240	50,000	-40	240	Standard	R188	57155K356	0000
				1/4"	5/8"	0.196"	5	330	45,000	-10	240	Standard	R4	57155K357	0000
				5/16"	1/2"	5/32"	5	120	48,000	-40	240	Standard	R1810	57155K358	0000


				Shielded







								Corrosion-Resistant 440C Stainless Steel

								3/64"	5/32"	3/32"	5	30	120,000	-40	240	Standard	R0-2Z	57155K359	0000


								0.055"	3/16"	7/64"	5	50	110,000	-40	240	Standard	R1-2Z	57155K361	0000
								0.055"	3/16"	7/64"	5	50	110,000	-40	240	Extended	R1-2Z	57155K12	00000
								5/64"	1/4"	9/64"	5	70	80,000	-40	240	Standard	R1-4-2Z	57155K362	0000
								5/64"	1/4"	9/64"	5	70	80,000	-40	240	Extended	R1-4-2Z	57155K379	0000
								3/32"	3/16"	3/32"	5	30	95,000	-40	240	Standard	R133-2Z	57155K363	0000
								3/32"	3/16"	3/32"	5	30	95,000	-40	240	Extended	R133-2Z	57155K13	00000
								3/32"	5/16"	9/64"	5	120	71,000	-40	240	Standard	R1-5-2Z	57155K364	0000
								3/32"	5/16"	9/64"	5	120	71,000	-40	240	Extended	R1-5-2Z	57155K381	0000
								1/8"	1/4"	7/64"	5	60	80,000	-40	240	Standard	R144-2Z	57155K365	0000
								1/8"	1/4"	7/64"	5	60	80,000	-40	240	Extended	R144-2Z	57155K382	0000


								1/8"	5/16"	9/64"	5	120	71,000	-40	240	Standard	R2-5-2Z	57155K366	0000
								1/8"	5/16"	9/64"	5	120	71,000	-40	240	Extended	R2-5-2Z	57155K383	0000
								1/8"	3/8"	9/64"	5	140	63,000	-40	240	Standard	R2-6-2Z	57155K367	0000
								1/8"	3/8"	9/64"	5	140	63,000	-40	240	Extended	R2-6-2Z	57155K14	0000
								1/8"	3/8"	5/32"	5	140	67,000	-10	240	Standard	R2-2Z	57155K368	0000
								1/8"	1/2"	11/64"	5	140	63,000	-40	240	Standard	R2A-2Z	57155K369	0000
5/32"								5/16"	1/8"	5	80	63,000	-40	240	Standard	R155-2Z	57155K371	0000
5/32"	5/16"							1/8"	5	80	63,000	-40	240	Extended	R155-2Z	57155K15	0000
3/16"	5/16"							1/8"	5	80	63,000	-40	240	Standard	R156-2Z	57155K372	0000
3/16"	5/16"							1/8"	5	80	63,000	-40	240	Extended	R156-2Z	57155K16	0000


3/16"	3/8"	1/8"	5					160	60,000	-40	240	Standard	R166-2Z	57155K373	0000
3/16"	3/8"	1/8"	5					160	60,000	-40	240	Extended	R166-2Z	57155K384	0000
3/16"	1/2"	0.196"	5					290	50,000	-40	240	Extended	R3-2Z	57155K385	0000
3/16"	1/2"	0.196"	5					290	50,000	-10	240	Standard	R3-2Z	57155K374	0000
1/4"	3/8"	1/8"	5					80	56,000	-40	240	Standard	R168-2Z	57155K375	0000
1/4"	3/8"	1/8"	5					80	56,000	-40	240	Extended	R168-2Z	57155K386	0000
1/4"	1/2"	3/16"	5					240	50,000	-40	240	Standard	R188-2Z	57155K376	0000
1/4"	1/2"	3/16"	5					240	50,000	-40	240	Extended	R188-2Z	57155K387	0000
1/4"	5/8"	0.196"	5					330	45,000	-40	240	Extended	R4-2Z	57155K388	0000
1/4"	5/8"	0.196"	5					330	45,000	-10	240	Standard	R4-2Z	57155K377	0000


5/16"	1/2"	5/32"	5					120	48,000	-40	240	Standard	R1810-2Z	57155K378	0000
5/16"	1/2"	5/32"	5					120	48,000	-40	240	Extended	R1810-2Z	57155K389	0000
2 mm	5 mm	2.5 mm	5					35	100,000	-40	240	Standard	52-2Z	7804K119	0000
2 mm	6 mm	3 mm	5					70	90,000	-40	240	Standard	692-2Z	7804K121	0000
3 mm	6 mm	2.5 mm	5					45	80,000	-40	240	Standard	63-2Z	7804K124	0000
3 mm	7 mm	3 mm	5					70	75,000	-40	240	Standard	683-2Z	7804K125	0000
3 mm	8 mm	4 mm	5					120	67,000	-40	240	Standard	693-2Z	7804K126	0000
3 mm	10 mm	4 mm	5					140	56,000	-40	240	Standard	623-2Z	7804K128	0000
4 mm	10 mm	4 mm	5					130	56,000	-40	240	Standard	104-2Z	7804K1	0000
4 mm	11 mm	4 mm	5					210	53,000	-40	240	Standard	694-2Z	7804K101	0000


4 mm	12 mm	4 mm	5					210	53,000	-40	240	Standard	604-2Z	7804K102	0000
4 mm	13 mm	5 mm	5					290	48,000	-40	240	Standard	624-2Z	7804K103	0000
5 mm	8 mm	2.5 mm	5					65	63,000	-40	240	Standard	85-2Z	7804K104	0000
5 mm	9 mm	3 mm	5					95	60,000	-40	240	Standard	95-2Z	7804K105	0000
5 mm	10 mm	4 mm	5	95				60,000	-40	240	Standard	105-2Z	7804K106	0000
5 mm	11 mm	4 mm	5	160	53,000			-40	240	Standard	115-2Z	7804K107	0000
5 mm	13 mm	4 mm	5	240	50,000			-40	240	Standard	695-2Z	7804K108	0000
5 mm	14 mm	5 mm	5	290	48,000			-40	240	Standard	605-2Z	7804K109	0000
6 mm	10 mm	3 mm	5	110	53,000			-40	240	Standard	106-2Z	7804K111	0000
6 mm	12 mm	4 mm	5	160	50,000	-40		240	Standard	126-2Z	7804K112	0000
6 mm	13 mm	5 mm	5	240	48,000	-40	240	Standard	686-2Z	7804K113	0000
7 mm	14 mm	5 mm	5	260	45,000	-40	240	Standard	687-2Z	7804K114	0000
8 mm	12 mm	3.5 mm	5	120	48,000	-40	240	Standard	128-2Z	7804K115	0000
8 mm	14 mm	4 mm	5	180	45,000	-40	240	Standard	148-2Z	7804K116	0000
8 mm	16 mm	5 mm	5	280	43,000	-40	240	Standard	688-2Z	7804K117	0000
9 mm	17 mm	5 mm	5	290	43,000	-40	240	Standard	689-2Z	7804K118	0000

Flanged Ball Bearings

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.

				Flange					Temp. Range, ° F
	For Shaft Dia.	For Housing ID	Wd.	OD	Thk.	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

				3/64"	5/32"	1/16"	0.203"	0.01"	5	30	120,000	-20	250	Standard	R0	57155K201	00000


				5/64"	1/4"	3/32"	0.296"	0.02"	5	70	80,000	-20	250	Standard	R1-4	57155K202	0000
				3/32"	3/16"	1/16"	0.234"	0.02"	5	40	95,000	-20	250	Standard	R133	57155K203	0000
				3/32"	5/16"	7/64"	0.359"	0.02"	5	120	71,000	-20	250	Standard	R1-5	57155K204	0000
				1/8"	1/4"	3/32"	0.296"	0.02"	5	60	80,000	-20	250	Standard	R144	57155K205	0000
				1/8"	5/16"	7/64"	0.359"	0.02"	5	120	71,000	-20	250	Standard	R2-5	57155K206	0000
				1/8"	3/8"	5/32"	0.44"	0.03"	5	140	67,000	-20	250	Standard	R2	57155K207	0000
				5/32"	5/16"	7/64"	0.359"	0.02"	5	80	63,000	-20	250	Standard	R155	57155K208	0000
				3/16"	5/16"	7/64"	0.359"	0.02"	5	80	63,000	-20	250	Standard	R156	57155K209	0000
				3/16"	3/8"	1/8"	0.422"	0.02"	5	160	60,000	-20	250	Standard	R166	57155K301	0000
				3/16"	1/2"	5/32"	0.565"	0.04"	5	290	50,000	-20	250	Standard	R3	57155K302	0000


				1/4"	3/8"	1/8"	0.422"	0.02"	5	80	56,000	-20	250	Standard	R168	57155K303	0000
				1/4"	1/2"	1/8"	0.547"	0.02"	5	240	50,000	-20	250	Standard	R188	57155K304	0000
				1/4"	5/8"	0.196"	0.69"	0.04"	5	330	45,000	-20	250	Standard	R4	57155K305	0000
				5/16"	1/2"	5/32"	0.547"	0.03"	5	120	48,000	-20	250	Standard	R1810	57155K306	0000


				Shielded







								Corrosion-Resistant 440C Stainless Steel

								3/64"	5/32"	3/32"	0.203"	0.03"	5	30	120,000	-20	250	Standard	R0-2Z	57155K307	00000


								3/64"	5/32"	3/32"	0.203"	0.03"	5	30	120,000	-20	250	Extended	R0-2Z	57155K18	00000
								5/64"	1/4"	9/64"	0.296"	0.03"	5	70	80,000	-20	250	Standard	R1-4-2Z	57155K309	00000
								5/64"	1/4"	9/64"	0.296"	0.03"	5	70	80,000	-20	250	Extended	R1-4-2Z	57155K326	0000
								3/32"	3/16"	3/32"	0.234"	0.03"	5	30	95,000	-20	250	Standard	R133-2Z	57155K311	0000
								3/32"	3/16"	3/32"	0.234"	0.03"	5	30	95,000	-20	250	Extended	R133-2Z	57155K327	00000
								3/32"	5/16"	9/64"	0.359"	0.03"	5	120	71,000	-20	250	Standard	R1-5-2Z	57155K312	00000
								3/32"	5/16"	9/64"	0.359"	0.03"	5	120	71,000	-20	250	Extended	R1-5-2Z	57155K328	00000
								1/8"	1/4"	7/64"	0.296"	0.03"	5	60	80,000	-20	250	Standard	R144-2Z	57155K313	0000
								1/8"	1/4"	7/64"	0.296"	0.03"	5	60	80,000	-20	250	Extended	R144-2Z	57155K329	0000
								1/8"	5/16"	9/64"	0.359"	0.03"	5	120	71,000	-20	250	Standard	R2-5-2Z	57155K314	0000


								1/8"	5/16"	9/64"	0.359"	0.03"	5	120	71,000	-20	250	Extended	R2-5-2Z	57155K331	0000
								1/8"	3/8"	9/64"	0.422"	0.03"	5	140	63,000	-20	250	Standard	R2-6-2Z	57155K315	0000
								1/8"	3/8"	9/64"	0.422"	0.03"	5	140	63,000	-20	250	Extended	R2-6-2Z	57155K332	0000
								1/8"	3/8"	5/32"	0.44"	0.03"	5	140	67,000	-20	250	Standard	R2-2Z	57155K316	0000
								5/32"	5/16"	1/8"	0.359"	0.04"	5	80	63,000	-20	250	Standard	R155-2Z	57155K317	0000
								5/32"	5/16"	1/8"	0.359"	0.04"	5	80	63,000	-20	250	Extended	R155-2Z	57155K2	00000
								3/16"	5/16"	1/8"	0.359"	0.04"	5	80	63,000	-20	250	Standard	R156-2Z	57155K318	0000
								3/16"	5/16"	1/8"	0.359"	0.04"	5	80	63,000	-20	250	Extended	R156-2Z	57155K334	0000
								3/16"	3/8"	1/8"	0.422"	0.03"	5	160	60,000	-20	250	Standard	R166-2Z	57155K319	0000
3/16"								3/8"	1/8"	0.422"	0.03"	5	160	60,000	-20	250	Extended	R166-2Z	57155K335	0000


3/16"	1/2"							0.196"	0.565"	0.04"	5	290	50,000	-20	250	Standard	R3-2Z	57155K321	0000
1/4"	3/8"							1/8"	0.422"	0.04"	5	80	56,000	-20	250	Standard	R168-2Z	57155K322	0000
1/4"	3/8"	1/8"						0.422"	0.04"	5	80	56,000	-20	250	Extended	R168-2Z	57155K336	0000
1/4"	1/2"	3/16"	0.547"					0.05"	5	240	50,000	-20	250	Standard	R188-2Z	57155K323	0000
1/4"	1/2"	3/16"	0.547"					0.05"	5	240	50,000	-20	250	Extended	R188-2Z	57155K337	0000
1/4"	5/8"	0.196"	0.69"					0.04"	5	330	45,000	-20	250	Standard	R4-2Z	57155K324	0000
5/16"	1/2"	5/32"	0.547"					0.03"	5	120	48,000	-20	250	Standard	R1810-2Z	57155K325	0000
5/16"	1/2"	5/32"	0.547"					0.03"	5	120	48,000	-20	250	Extended	R1810-2Z	57155K338	0000
4 mm	10 mm	4 mm	11.6 mm					0.8 mm	5	130	56,000	-20	250	Standard	104-2Z	7804K129	0000
5 mm	9 mm	3 mm	10.2 mm					0.6 mm	5	95	60,000	-20	250	Standard	95-2Z	7804K135	0000


5 mm	10 mm	4 mm	11.6 mm					0.8 mm	5	95	60,000	-20	250	Standard	105-2Z	7804K136	0000
5 mm	13 mm	4 mm	15 mm					1 mm	5	240	50,000	-20	250	Standard	695-2Z	7804K138	0000
6 mm	10 mm	3 mm	11.2 mm					0.6 mm	5	110	53,000	-20	250	Standard	106-2Z	7804K141	00000
6 mm	12 mm	4 mm	13.6 mm					0.8 mm	5	160	50,000	-20	250	Standard	126-2Z	7804K142	0000
6 mm	13 mm	5 mm	15 mm					1.1 mm	5	240	48,000	-20	250	Standard	686-2Z	7804K143	0000
7 mm	11 mm	3 mm	12.2 mm					0.6 mm	5	100	50,000	-20	250	Standard	117-2Z	7804K157	00000
8 mm	12 mm	3.5 mm	13.6 mm					0.8 mm	5	120	48,000	-20	250	Standard	128-2Z	7804K145	0000
8 mm	14 mm	4 mm	15.6 mm					0.8 mm	5	180	45,000	-20	250	Standard	148-2Z	7804K146	0000
8 mm	16 mm	5 mm	18 mm					1.1 mm	5	280	43,000	-20	250	Standard	688-2Z	7804K147	0000
9 mm	17 mm	5 mm	19 mm					1.1 mm	5	290	43,000	-20	250	Standard	689-2Z	7804K148	00000

Angular Contact Ball Bearings

Single Row

Open

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.

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

				12	28	8	5	Steel	1,200	31,000	Required	15°	-40	250	7001	2385K101	0000000


				25	47	12	5	Steel	2,750	32,500	Required	15°	-40	250	7005	2385K102	000000
				35	62	14	5	Steel	4,500	24,200	Required	15°	-40	250	7007	2385K103	000000
				40	68	15	5	Steel	4,800	21,700	Required	15°	-40	250	7008	2385K104	000000
				45	75	16	5	Steel	5,700	19,500	Required	15°	-40	250	7009	2385K105	000000
				50	80	16	5	Steel	6,050	18,000	Required	15°	-40	250	7010	2385K106	000000