Ultra-thin Ball Bearings

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Combined Radial, Thrust, and Moment

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Maximum Rotation Speed

Material

Dynamic Radial Load Capacity

Less than 1,000 lb.

1,000 lb. to 1,999 lb.

2,000 lb. to 2,999 lb.

3,000 lb. to 3,999 lb.

4,000 lb. or greater

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DFARS Specialty Metals

Exempt

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

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Export Control Classification Number (ECCN)

1C999

ABEC Rating

Static Radial Load Capacity

Less than 1,000 lb.

1,000 lb. to 1,999 lb.

2,000 lb. to 2,999 lb.

3,000 lb. to 3,999 lb.

Lubrication

Maximum Temperature

Radial Clearance

0.0026 mm to 0.0177 mm

0.005 mm to 0.013 mm

0.0051 mm to 0.0203 mm

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137 Products

Ball Bearing Profile

Standard

The most common profile for reducing friction between rotating parts

87 products

Flanged

Stay put in their housing when rocked by sudden thrust loads

50 products

Ball Bearing Type

Four-Point Contact

Support complex movement in multiple directions

15 products

Performance

Corrosion Resistant

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

38 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.

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

				10	15	3	1	190	15,000	-50	130	Standard	6700	6656K68	000000


				10	19	7	1	380	43,000	-50	130	Standard	63800	6656K72	00000
				12	18	4	1	205	15,000	-50	130	Standard	6701	6656K76	00000
				15	21	4	1	210	13,000	-50	130	Standard	6702	6656K84	00000
				17	23	4	1	220	11,000	-50	130	Standard	6703	6656K92	00000
				20	27	4	1	310	10,000	-50	130	Standard	6704	6656K101	00000
				20	32	10	1	900	25,000	-50	130	Standard	63804	6656K105	00000
				25	32	4	1	245	8,000	-50	130	Standard	6705	6656K108	00000
				30	37	4	1	250	7,000	-50	130	Standard	6706	6656K116	00000
				35	44	5	1	410	6,000	-50	130	Standard	6707	6656K123	00000
				40	50	6	1	560	5,000	-50	130	Standard	6708	6656K129	00000


				40	52	7	1	1,100	14,000	-50	130	Standard	6808	6656K132	00000
				45	55	6	1	580	4,600	-50	130	Standard	6709	6656K136	000000
				45	58	7	1	1,350	13,000	-50	130	Standard	6809	6656K137	00000
				50	65	7	1	1,450	11,000	-50	130	Standard	6810	6656K142	00000
				50	72	12	1	3,250	11,000	-50	130	Standard	6910	6656K144	00000
				55	72	9	1	1,950	10,000	-50	130	Standard	6811	6656K146	00000
				55	80	13	1	3,700	10,000	-50	130	Standard	6911	6656K147	00000
				60	78	10	1	2,550	9,400	-50	130	Standard	6812	6656K148	00000
				60	85	13	1	4,500	8,900	-50	130	Standard	6912	6656K149	00000
				65	85	10	1	2,650	8,600	-50	130	Standard	6813	6656K151	00000


				70	90	10	1	2,700	8,100	-50	130	Standard	6814	6656K153	00000
				85	120	18	1	7,150	6,300	-50	130	Standard	6917	6656K161	000000
				90	115	13	1	4,250	6,300	-50	130	Standard	6818	6656K162	000000




						Corrosion-Resistant 440C Stainless Steel

						10	15	3	1	190	15,000	-50	130	Standard	6700	6656K69	00000


						10	19	5	1	380	43,000	-50	130	Standard	6800	6656K71	00000
						10	22	6	1	600	41,000	-50	130	Standard	6900	6656K75	00000
						12	18	4	1	205	15,000	-50	130	Standard	6701	6656K77	00000
						12	24	6	1	640	36,000	-50	130	Standard	6901	6656K83	00000
						15	24	7	1	460	33,000	-50	130	Standard	63802	6656K89	00000
						15	28	7	1	970	30,000	-50	130	Standard	6902	6656K91	00000
						17	23	4	1	220	11,000	-50	130	Standard	6703	6656K93	00000
						20	27	4	1	310	10,000	-50	130	Standard	6704	6656K102	00000
						30	37	4	1	250	7,000	-50	130	Standard	6706	6656K117	00000
						35	44	5	1	410	6,000	-50	130	Standard	6707	6656K124	00000


						35	47	7	1	1,050	16,000	-50	130	Standard	6807	6656K126	00000


						Shielded







						Steel

						10	15	4	1	190	15,000	-40	150	Standard	6700-2Z	6656K163	00000


						10	19	7	1	380	37,000	-40	150	Standard	63800-2Z	6656K167	00000
						12	18	4	1	205	13,000	-40	150	Standard	6701-2Z	6656K172	00000
						15	21	4	1	210	11,000	-40	150	Standard	6702-2Z	6656K181	00000
						15	24	7	1	460	28,000	-40	150	Standard	63802-2Z	6656K185	00000
						17	23	4	1	220	9,500	-40	150	Standard	6703-2Z	6656K189	00000
						20	27	4	1	310	8,500	-40	150	Standard	6704-2Z	6656K198	00000
						20	32	10	1	900	21,000	-40	150	Standard	63804-2Z	6656K203	00000
						35	47	7	1	1,050	13,000	-40	150	Standard	6807-2Z	6656K216	00000
						40	52	7	1	1,100	12,000	-40	150	Standard	6808-2Z	6656K221	00000
						45	58	7	1	1,350	11,000	-40	150	Standard	6809-2Z	6656K225	00000


						45	68	12	1	3,150	9,700	-40	150	Standard	6909-2Z	6656K227	00000
						50	65	7	1	1,450	9,600	-40	150	Standard	6810-2Z	6656K229	00000
						50	72	12	1	3,250	9,000	-40	150	Standard	6910-2Z	6656K232	00000
						55	72	9	1	1,950	8,700	-40	150	Standard	6811-2Z	6656K234	00000
						55	80	13	1	3,700	8,700	-40	150	Standard	6911-2Z	6656K235	00000
						60	78	10	1	2,550	8,000	-40	150	Standard	6812-2Z	6656K236	00000
						60	85	13	1	4,500	7,500	-40	150	Standard	6912-2Z	6656K237	00000
						65	85	10	1	2,650	7,300	-40	150	Standard	6813-2Z	6656K238	00000
						70	90	10	1	2,700	6,800	-40	150	Standard	6814-2Z	6656K241	00000
						75	95	10	1	2,800	12,500	-40	150	Standard	6815-2Z	6656K243	000000


						80	100	10	1	2,850	12,700	-40	150	Standard	6816-2Z	6656K245	000000
						90	115	13	1	4,250	5,300	-40	150	Standard	6818-2Z	6656K249	000000




					Corrosion-Resistant 440C Stainless Steel

					10		15	4	1	190	15,000	-40	150	Standard	6700-2Z	6656K164	00000


					10		19	5	1	380	37,000	-40	150	Standard	6800-2Z	6656K166	00000
					10		19	7	1	380	37,000	-40	150	Standard	63800-2Z	6656K168	00000
					10		22	6	1	600	34,000	-40	150	Standard	6900-2Z	6656K171	00000
					12		18	4	1	205	13,000	-40	150	Standard	6701-2Z	6656K173	00000
					12		24	6	1	640	31,000	-40	150	Standard	6901-2Z	6656K179	00000
					15		21	4	1	210	11,000	-40	150	Standard	6702-2Z	6656K182	00000
					17		23	4	1	220	9,500	-40	150	Standard	6703-2Z	6656K191	00000
					17		30	7	1	1,000	23,000	-40	150	Standard	6903-2Z	6656K197	00000
					25		37	7	1	960	18,000	-40	150	Standard	6805-2Z	6656K207	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
					35		47	7	1	1,050	13,000	-40	150	Standard	6807-2Z	6656K217	00000

Four-Point Angular Contact Ball Bearings

Support complex movement in multiple directions with a single compact bearing. The balls distribute weight at four points, so these bearings handle radial, thrust, and moment loads all at once. For example, you’ll often find them in robot arms, which rotate, extend, and twist while supporting an object’s weight. Thinner than two standard angular contact ball bearings paired together, these bearings squeeze into tight spaces. They’re commonly paired with large hollow shafts to run electrical wire and other lines.

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.

					Dynamic Load Cap.					Temp. Range, ° F
	For Shaft Dia.	For Housing ID	Wd.	ABEC Rating	Radial, lb.	Thrust, lb.	Moment, ft·lbf	Max. Rotation Speed, rpm	Contact Angle	Min.	Max.	Inner Ring Type		Each
Open







				Steel

				2"	2 1/2"	1/4"	1F	510	790	35	1,500	30°	-60	250	Standard	6656K11	0000000


				2"	2 5/8"	5/16"	1F	750	1,100	50	1,500	30°	-60	250	Standard	6656K19	000000
				2 1/2"	3"	1/4"	1F	580	910	50	1,200	30°	-60	250	Standard	6656K12	000000
				2 1/2"	3 1/8"	5/16"	1F	840	1,250	70	1,200	30°	-60	250	Standard	6656K21	000000
				3"	3 1/2"	1/4"	1F	640	1,000	65	800	30°	-60	250	Standard	6656K13	000000
				3"	3 5/8"	5/16"	1F	930	1,400	95	1,000	30°	-60	250	Standard	6656K22	000000
				3 1/2"	4"	1/4"	1F	700	1,100	80	700	30°	-60	250	Standard	6656K14	000000
				3 1/2"	4 1/8"	5/16"	1F	1,000	1,550	120	700	30°	-60	250	Standard	6656K23	000000
				4"	4 1/2"	1/4"	1F	750	1,200	100	600	30°	-60	250	Standard	6656K15	000000
				4"	4 5/8"	5/16"	1F	1,050	1,700	140	600	30°	-60	250	Standard	6656K24	000000
				5"	5 1/2"	1/4"	1F	850	1,400	130	500	30°	-60	250	Standard	6656K16	000000


				5"	5 5/8"	5/16"	1F	1,200	1,950	200	500	30°	-60	250	Standard	6656K25	00000000
				6"	6 1/2"	1/4"	1F	950	1,550	180	300	30°	-60	250	Standard	6656K17	00000000
				6"	6 5/8"	5/16"	1F	1,350	2,200	260	400	30°	-60	250	Standard	6656K26	00000000
				7"	7 1/2"	1/4"	1F	1,000	1,700	230	200	30°	-60	250	Standard	6656K18	00000000

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.

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

				10	15	3	16.5	0.8	1	190	17,000	-50	280	Standard	6700	4390N111	000000


				10	19	5	21	1	1	380	40,000	-50	280	Standard	6800	4390N113	00000
				10	19	7	21	1.5	1	380	40,000	-50	280	Standard	63800	4390N115	00000
				10	22	6	25	1.5	1	600	37,000	-50	280	Standard	6900	4390N117	00000
				12	18	4	19.5	0.8	1	205	15,000	-50	280	Standard	6701	4390N119	00000
				12	21	5	23	1.1	1	430	36,000	-50	280	Standard	6801	4390N122	00000
				12	21	7	23	1.5	1	430	36,000	-50	280	Standard	63801	4390N124	00000
				12	24	6	26.5	1.5	1	640	33,000	-50	280	Standard	6901	4390N125	00000
				15	21	4	22.5	0.8	1	210	13,000	-50	280	Standard	6702	4390N127	00000
				15	24	5	26	1.1	1	460	31,000	-50	280	Standard	6802	4390N129	00000
				17	23	4	24.5	0.8	1	220	11,000	-50	280	Standard	6703	4390N135	00000


				17	30	7	32.5	1.5	1	1,000	26,000	-50	280	Standard	6903	4390N137	00000
				20	27	4	28.5	0.8	1	225	10,000	-50	280	Standard	6704	4390N138	00000
				20	32	7	35	1.5	1	900	25,000	-50	280	Standard	6804	4390N139	00000
				25	32	4	34	1	1	245	8,000	-50	280	Standard	6705	4390N142	00000
				30	37	4	39	1	1	250	7,000	-50	280	Standard	6706	4390N145	00000




						Corrosion-Resistant 440C Stainless Steel

						10	15	3	16.5	0.8	1	150	17,000	-50	280	Standard	6700	4390N112	00000


						10	19	5	21	1	1	300	40,000	-50	280	Standard	6800	4390N114	00000
						15	21	4	22.5	0.8	1	165	13,000	-50	280	Standard	6702	4390N128	00000
						15	28	7	30.5	1.5	1	770	29,000	-50	280	Standard	6902	4390N134	00000


						Shielded







										Steel

										10	15	4	16.5	0.8	1	190	15,000	-50	300	Standard	6700-2Z	4390N148	00000


										10	19	5	21	1	1	380	34,000	-50	300	Standard	6800-2Z	4390N151	00000
										10	22	6	25	1.5	1	600	31,000	-50	300	Standard	6900-2Z	4390N155	00000
										12	18	4	19.5	0.8	1	200	13,000	-50	300	Standard	6701-2Z	4390N157	00000
										12	21	5	23	1.1	1	430	30,000	-50	300	Standard	6801-2Z	4390N159	00000
										12	21	7	23	1.5	1	430	30,000	-50	300	Standard	63801-2Z	4390N162	00000
										12	24	6	26.5	1.5	1	640	28,000	-50	300	Standard	6901-2Z	4390N163	00000
										15	21	4	22.5	0.8	1	210	11,000	-50	300	Standard	6702-2Z	4390N165	00000
										15	24	5	26	1.1	1	460	26,000	-50	300	Standard	6802-2Z	4390N166	00000
15										24	7	26	1.5	1	460	26,000	-50	300	Standard	63802-2Z	4390N168	00000
15	28									7	30.5	1.5	1	970	24,000	-50	300	Standard	6902-2Z	4390N169	00000


17	23									4	24.5	0.8	1	220	9,500	-50	300	Standard	6703-2Z	4390N172	00000
17	26	5								28	1.1	1	500	24,000	-50	300	Standard	6803-2Z	4390N173	00000
17	30	7	32.5							1.5	1	1,000	22,000	-50	300	Standard	6903-2Z	4390N174	00000
20	27	4	28.5							0.8	1	225	8,500	-50	300	Standard	6704-2Z	4390N175	00000
20	32	7	35							1.5	1	900	21,000	-50	300	Standard	6804-2Z	4390N176	00000
20	37	9	40							2	1	1,400	19,000	-50	300	Standard	6904-2Z	4390N177	00000
25	37	7	40							1.5	1	960	18,000	-50	300	Standard	6805-2Z	4390N178	00000
25	42	9	45							2	1	1,550	16,000	-50	300	Standard	6905-2Z	4390N179	00000
30	42	7	45							1.5	1	1,000	15,000	-50	300	Standard	6806-2Z	4390N181	00000
30	47	9	50							2	1	1,600	14,000	-50	300	Standard	6906-2Z	4390N182	00000




		Corrosion-Resistant 440C Stainless Steel

		10	15							4	16.5	0.8	1	150	15,000	-50	300	Standard	6700-2Z	4390N149	00000


		10	19							5	21	1	1	300	34,000	-50	300	Standard	6800-2Z	4390N152	00000
		10	19							7	21	1.5	1	300	34,000	-50	300	Standard	63800-2Z	4390N154	00000
		10	22							6	25	1.5	1	480	31,000	-50	300	Standard	6900-2Z	4390N156	00000
		12	18							4	19.5	0.8	1	165	13,000	-50	300	Standard	6701-2Z	4390N158	00000
		12	21							5	23	1.1	1	340	30,000	-50	300	Standard	6801-2Z	4390N161	00000
		12	24							6	26.5	1.5	1	510	28,000	-50	300	Standard	6901-2Z	4390N164	00000
		15	24							5	26	1.1	1	370	26,000	-50	300	Standard	6802-2Z	4390N167	00000
		15	28							7	30.5	1.5	1	770	24,000	-50	300	Standard	6902-2Z	4390N171	00000