Headset Bearings | McMaster-Carr

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For Housing ID

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Rotation Speed

10,000 rpm to 19,999 rpm

20,000 rpm to 29,999 rpm

30,000 rpm to 39,999 rpm

40,000 rpm or greater

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247 Products

Cycle Accessories and Replacement Parts

Keep cycles up and running with repair parts or add accessories like a horn or basket.

Also Available: Accessories and parts not listed. Please ask for 2701T888 and specify manufacturer part number.

Bearings

Model Number 49

For Cycle Style	Mfr.	Mfr. Model No.	For Use With		Pair
A, B, C, D	Worksman	49	Handlebars	2701T847	00000

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

Thin-Profile Crossed-Roller Bearings

For a more compact machine, these bearings have thinner inner and outer rings than high-load crossed-roller bearings. Route hydraulic lines, electrical wiring, and other components through the inside of the bearing. The rollers face in alternating directions to allow for rigid, accurate motion under any combination of radial, thrust, and moment (twisting) loads. Use in applications where highly accurate motion is necessary, such as machine tools and industrial robots.

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.

				Combined Load Cap., lbf
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	Temp. Range, ° F	Features		Each
For Combined Radial, Thrust, and Moment Load—Open with Steel Ring



		10	21	5	250	180	1,000	Required	0 to 175	Lubrication Hole	1378N61	0000000


		15	26	5	290	240	1,000	Required	0 to 175	Lubrication Hole	1378N62	000000
		20	31	5	310	290	2,900	Required	0 to 230	—	1378N31	000000
		30	41	5	390	440	2,100	Required	0 to 230	—	1378N32	000000
		40	51	5	440	560	1,600	Required	0 to 230	—	1378N33	000000
		50	61	5	510	710	1,300	Required	0 to 230	—	1378N34	000000
		60	71	5	590	910	1,200	Required	0 to 175	Two Lubrication Holes	1378N63	000000
		70	81	5	630	1,050	1,050	Required	0 to 175	Two Lubrication Holes	1378N64	000000
		80	91	5	680	1,200	900	Required	0 to 175	Lubrication Hole	1378N65	000000
		90	101	5	710	1,350	800	Required	0 to 175	Lubrication Hole	1378N66	000000
		100	111	5	750	1,450	750	Required	0 to 175	Lubrication Hole	1378N67	000000


		For Combined Radial, Thrust, and Moment Load—Sealed with Steel Ring



				50	66	8	1,100	1,600	700	Lubricated	0 to 175	Four Lubrication Holes	1378N68	000000


				60	76	8	1,250	1,950	500	Lubricated	0 to 175	Lubrication Groove, Lubrication Hole	1378N69	000000
				70	86	8	1,300	2,200	510	Lubricated	0 to 175	Four Lubrication Holes	1378N71	000000
				80	96	8	1,400	2,500	460	Lubricated	0 to 175	Four Lubrication Holes	1378N72	000000
				90	106	8	1,500	2,750	375	Lubricated	0 to 175	Lubrication Groove, Lubrication Hole	1378N73	000000
				100	116	8	1,600	3,100	350	Lubricated	0 to 175	Lubrication Groove, Lubrication Hole	1378N74	000000
				110	126	8	1,650	3,350	300	Lubricated	0 to 175	Lubrication Groove, Lubrication Hole	1378N75	000000
				120	136	8	1,750	3,700	275	Lubricated	0 to 175	Lubrication Groove, Lubrication Hole	1378N76	000000
				130	146	8	1,750	3,950	290	Lubricated	0 to 175	Four Lubrication Holes	1378N77	000000
				140	156	8	1,850	4,250	270	Lubricated	0 to 175	Four Lubrication Holes	1378N78	000000
				150	166	8	1,950	4,600	250	Lubricated	0 to 175	Four Lubrication Holes	1378N79	000000


				160	166	13	5,200	10,050	230	Lubricated	0 to 175	Four Lubrication Holes	1378N81	000000
				170	196	13	5,250	10,400	220	Lubricated	0 to 175	Four Lubrication Holes	1378N82	000000
				180	206	13	5,500	11,150	205	Lubricated	0 to 175	Four Lubrication Holes	1378N83	000000
				190	216	13	5,550	11,550	195	Lubricated	0 to 175	Four Lubrication Holes	1378N84	000000
				200	226	13	5,800	12,250	175	Lubricated	0 to 175	Lubrication Groove, Lubrication Hole	1378N85	00000000

High-Load Crossed-Roller Bearings

The thicker inner and outer raceways on these bearings can handle heavier loads than the thin-profile crossed-roller bearings. The rollers face in alternating directions to allow for rigid, accurate motion under any combination of radial, thrust, and moment (twisting) loads. Use in applications where highly accurate motion is necessary, such as machine tools and industrial robots.

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.

				Combined Load Cap., lbf
	For Shaft Dia., mm	For Housing ID, mm	Wd., mm	Dynamic	Static	Max. Rotation Speed, rpm	Lubrication	Temp. Range, ° F	Features		Each
For Combined Radial, Thrust, and Moment Load—Open with Steel Ring



		30	55	10	1,700	1,850	1,750	Required	0 to 245	—	4489N11	0000000


		40	65	10	1,900	2,350	1,400	Required	0 to 245	—	4489N12	000000
		50	80	13	3,850	4,650	1,150	Required	0 to 230	Lubrication Groove, Two Lubrication Holes	1378N11	000000
		60	90	13	4,200	5,450	1,000	Required	0 to 230	Lubrication Groove, Two Lubrication Holes	1378N12	000000
		70	100	13	4,500	6,200	880	Required	0 to 230	Lubrication Groove, Two Lubrication Holes	1378N13	000000
		80	120	16	7,200	9,700	750	Required	0 to 230	Lubrication Groove, Two Lubrication Holes	1378N14	000000
		90	130	16	7,400	10,500	680	Required	0 to 245	—	4489N13	000000
		100	150	20	11,400	16,200	600	Required	0 to 245	—	4489N14	000000
		110	160	20	11,750	17,400	550	Required	0 to 245	—	4489N15	000000
		120	180	25	16,500	24,250	500	Required	0 to 245	—	4489N16	00000000


		For Combined Radial, Thrust, and Moment Load—Sealed with Steel Ring



				20	36	8	650	540	2,100	Lubricated	0 to 245	Lubrication Groove, Two Lubrication Holes	4489N17	000000


				30	55	10	1,700	1,850	1,400	Lubricated	0 to 245	Lubrication Groove, Two Lubrication Holes	4489N18	000000
				40	65	10	1,900	2,350	1,100	Lubricated	0 to 245	Lubrication Groove, Two Lubrication Holes	4489N19	000000
				50	80	13	3,850	4,600	900	Lubricated	0 to 210	Lubrication Groove, Two Lubrication Holes	1378N21	000000
				60	90	13	4,200	5,400	800	Lubricated	0 to 210	Lubrication Groove, Two Lubrication Holes	1378N22	000000
				70	100	13	4,500	6,200	700	Lubricated	0 to 210	Lubrication Groove, Two Lubrication Holes	1378N23	000000
				80	120	16	7,200	9,700	600	Lubricated	0 to 210	Lubrication Groove, Two Lubrication Holes	1378N24	000000
				90	130	16	7,400	10,500	540	Lubricated	0 to 245	Lubrication Groove, Two Lubrication Holes	4489N21	000000
				100	150	20	11,400	16,200	480	Lubricated	0 to 245	Lubrication Groove, Two Lubrication Holes	4489N22	000000
				110	160	20	11,750	17,400	440	Lubricated	0 to 245	Lubrication Groove, Two Lubrication Holes	4489N23	000000
				120	180	25	16,500	24,250	400	Lubricated	0 to 245	Lubrication Groove, Two Lubrication Holes	4489N24	00000000


				200	260	25	20,700	37,950	260	Lubricated	0 to 245	Lubrication Groove, Two Lubrication Holes	4489N25	00000000

High-Precision Angular Contact Ball Bearings

Open

Sealed

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.

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

				10	30	9	7	Steel	1,250	57,500	Required	15°	-40	245	7200	4487N19	0000000


				12	28	8	7	Steel	1,000	67,000	Required	15°	-30	140	7001	2385K41	000000
				12	32	10	7	Steel	1,850	52,300	Required	15°	-40	245	7201	4487N21	000000
				15	32	9	7	Steel	1,150	56,000	Required	15°	-30	140	7002	2385K42	000000
				15	35	11	7	Steel	2,000	46,000	Required	15°	-40	245	7202	4487N22	000000
				17	35	10	7	Steel	1,500	50,000	Required	15°	-30	140	7003	2385K43	000000
				17	40	12	7	Steel	2,550	40,400	Required	15°	-40	245	7203	4487N23	000000
				20	42	12	7	Steel	1,950	43,000	Required	15°	-30	140	7004	2385K44	000000
				20	47	14	7	Steel	3,400	34,400	Required	15°	-40	245	7204	4487N24	000000
				25	47	12	7	Steel	2,150	36,000	Required	15°	-30	140	7005	2385K45	000000
				25	52	15	7	Steel	3,900	29,900	Required	15°	-40	245	7205	4487N25	000000


				30	55	13	7	Steel	3,200	32,000	Required	15°	-30	140	7006	2385K46	000000
				30	62	16	7	Steel	5,400	25,000	Required	15°	-40	245	7206	4487N26	000000
				35	62	14	7	Steel	3,500	24,000	Required	15°	-30	140	7007	2385K47	000000
				35	72	17	7	Steel	7,150	21,500	Required	15°	-40	245	7207	4487N27	000000
				40	68	15	7	Steel	3,750	20,000	Required	15°	-30	140	7008	2385K48	000000
				40	80	18	7	Steel	8,500	19,200	Required	15°	-40	245	7208	4487N28	000000
				45	75	16	7	Steel	6,400	19,000	Required	15°	-30	140	7009	2385K49	000000
				45	85	19	7	Steel	9,650	17,700	Required	15°	-40	245	7209	4487N29	000000
				50	80	16	7	Steel	6,650	17,000	Required	15°	-30	140	7010	2385K51	000000
				50	90	20	7	Steel	10,100	16,500	Required	15°	-40	245	7210	4487N31	000000




						Sealed

						30	55	13	7	Steel	3,550	27,100	Lubricated	15°	0	230	7006	4487N11	000000


						35	62	14	7	Steel	4,500	23,800	Lubricated	15°	0	230	7007	4487N12	000000
						40	68	15	7	Steel	4,850	21,300	Lubricated	15°	0	230	7008	4487N13	000000
						45	75	16	7	Steel	5,750	19,200	Lubricated	15°	0	230	7009	4487N14	000000
						50	80	16	7	Steel	6,100	17,700	Lubricated	15°	0	230	7010	4487N15	000000
						55	90	18	7	Steel	8,050	15,900	Lubricated	15°	0	230	7011	4487N16	00000000
						60	95	18	7	Steel	8,300	14,900	Lubricated	15°	0	230	7012	4487N17	00000000
						65	100	18	7	Steel	8,750	14,000	Lubricated	15°	0	230	7013	4487N18	00000000

Angular Contact Ball Bearings

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.

Double Row—Double-row bearings handle thrust loads from both directions.

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.

										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

				10	30	9	3	Steel	1,550	30,000	Required	40°	-40	300	7200	6680K11	000000


				12	28	8	5	Steel	1,200	31,000	Required	15°	-40	250	7001	2385K101	000000
				12	32	10	3	Steel	1,700	26,000	Required	40°	-40	300	7201	6680K12	00000
				12	37	12	3	Steel	2,350	24,000	Required	40°	-40	300	7301	6680K23	00000
				15	35	11	3	Steel	1,850	24,000	Required	40°	-40	300	7202	6680K13	00000
				15	42	13	3	Steel	2,900	20,000	Required	40°	-40	300	7302	6680K24	00000
				17	40	12	3	Steel	2,300	20,000	Required	40°	-40	300	7203	6680K14	00000
				17	47	14	3	Steel	3,550	19,000	Required	40°	-40	300	7303	6680K25	00000
				20	47	14	3	Steel	2,950	18,000	Required	40°	-40	300	7204	6680K15	00000
				20	52	15	3	Steel	3,900	16,000	Required	40°	-40	300	7304	6680K26	000000
				25	47	12	5	Steel	2,750	32,500	Required	15°	-40	250	7005	2385K102	000000


				25	52	15	3	Steel	3,300	15,000	Required	40°	-40	300	7205	6680K16	000000
				25	62	17	3	Steel	5,400	14,000	Required	40°	-40	300	7305	6680K27	000000
				30	62	16	3	Steel	5,050	13,000	Required	40°	-40	300	7206	6680K17	000000
				30	72	19	3	Steel	7,300	12,000	Required	40°	-40	300	7306	6680K28	000000
				35	62	14	5	Steel	4,500	24,200	Required	15°	-40	250	7007	2385K103	000000
				35	72	17	3	Steel	6,500	11,000	Required	40°	-40	300	7207	6680K18	000000
				35	80	21	3	Steel	8,750	10,000	Required	40°	-40	300	7307	6680K29	000000
				40	68	15	5	Steel	4,800	21,700	Required	15°	-40	250	7008	2385K104	000000
				40	80	18	3	Steel	8,450	11,000	Required	40°	-40	300	7208	6680K19	000000
				40	90	23	3	Steel	10,300	9,000	Required	40°	-40	300	7308	6680K31	000000


				45	75	16	5	Steel	5,700	19,500	Required	15°	-40	250	7009	2385K105	000000
				45	85	19	3	Steel	8,000	9,000	Required	40°	-40	300	7209	6680K21	000000
				45	100	25	3	Steel	12,500	8,000	Required	40°	-40	300	7309	6680K32	000000
				50	80	16	5	Steel	6,050	18,000	Required	15°	-40	250	7010	2385K106	000000
				50	90	20	3	Steel	8,450	8,500	Required	40°	-40	300	7210	6680K22	000000
				50	110	27	3	Steel	15,400	7,500	Required	40°	-40	300	7310	6680K33	000000




						Sealed

						10	30	9	1	Steel	1,150	15,000	Lubricated	40°	-20	230	7200-2RS	6680K34	00000


						12	32	10	1	Steel	1,650	14,000	Lubricated	40°	-20	230	7201-2RS	6680K35	000000
						15	35	11	1	Steel	1,850	24,000	Lubricated	40°	-20	230	7202-2RS	6680K36	000000
						15	42	13	1	Steel	3,150	11,000	Lubricated	40°	-20	230	7302-2RS	6680K44	000000
						17	40	12	1	Steel	2,350	11,000	Lubricated	40°	-20	230	7203-2RS	6680K37	000000
						17	47	14	1	Steel	3,950	13,000	Lubricated	40°	-20	230	7303-2RS	6680K45	000000
						20	47	14	1	Steel	3,100	9,000	Lubricated	40°	-20	230	7204-2RS	6680K38	000000
						20	52	15	1	Steel	4,550	8,500	Lubricated	40°	-20	230	7304-2RS	6680K46	000000
						25	52	15	1	Steel	3,400	8,000	Lubricated	40°	-20	230	7205-2RS	6680K39	000000
						25	62	17	1	Steel	6,250	7,000	Lubricated	40°	-20	230	7305-2RS	6680K47	000000
						30	62	16	1	Steel	4,850	6,300	Lubricated	40°	-20	230	7206-2RS	6680K41	000000


						30	72	19	1	Steel	7,650	6,000	Lubricated	40°	-20	230	7306-2RS	6680K48	000000
35						72	17	1	Steel	6,250	5,600	Lubricated	40°	-20	230	7207-2RS	6680K42	000000
40	80					18	1	Steel	7,600	5,000	Lubricated	40°	-20	230	7208-2RS	6680K43	000000
40	90					23	1	Steel	11,900	4,500	Lubricated	40°	-20	230	7308-2RS	6680K49	000000


Double Row







						Open

						10	30	14	1	Steel	1,700	22,000	Required	30°	-40	250	3200	8828T111	00000


						12	32	15.9	1	Steel	2,250	20,000	Required	30°	-40	250	3201	8828T112	00000
						15	35	15.9	1	Steel	2,500	17,000	Required	30°	-40	250	3202	8828T113	00000
						17	40	17.5	1	Steel	3,200	15,000	Required	30°	-40	250	3203	8828T114	00000
						17	47	22.2	1	Steel	4,850	14,000	Required	30°	-40	250	3303	8828T122	00000
						20	47	20.6	3	Steel	4,450	14,000	Required	30°	-40	250	3204	8828T115	00000
						20	52	22.2	3	Steel	5,300	13,000	Required	30°	-40	250	3304	8828T123	000000
						25	52	20.6	3	Steel	4,850	12,000	Required	30°	-40	250	3205	8828T116	00000
						25	62	25.4	3	Steel	7,150	11,000	Required	30°	-40	250	3305	8828T124	000000
						30	62	23.8	3	Steel	6,700	10,000	Required	30°	-40	250	3206	8828T117	000000
						35	72	27	3	Steel	8,950	9,000	Required	30°	-40	250	3207	8828T118	000000


						40	80	30.2	3	Steel	10,600	8,000	Required	30°	-40	250	3208	8828T119	000000
						50	90	30.2	3	Steel	11,400	7,000	Required	30°	-40	250	3210	8828T121	000000




								Shielded

								10	30	14	1	Steel	1,700	24,000	Lubricated	30°	-40	250	3200-2Z	8828T211	000000


								12	32	15.9	1	Steel	2,250	22,000	Lubricated	30°	-40	250	3201-2Z	8828T212	000000
								15	35	15.9	1	Steel	2,500	18,000	Lubricated	30°	-40	250	3202-2Z	8828T213	000000
								17	40	17.5	1	Steel	3,200	16,000	Lubricated	30°	-40	250	3203-2Z	8828T214	00000
								17	47	22.2	1	Steel	4,850	14,000	Lubricated	30°	-40	250	3303-2Z	8828T222	000000
				20				47	20.6	3	Steel	4,450	14,000	Lubricated	30°	-40	300	3204-2Z	8828T215	000000
				20	52			22.2	3	Steel	5,300	13,000	Lubricated	30°	-40	300	3304-2Z	8828T223	000000
				25	52			20.6	3	Steel	4,850	12,000	Lubricated	30°	-40	300	3205-2Z	8828T216	000000
				25	62			25.4	3	Steel	7,150	11,000	Lubricated	30°	-40	300	3305-2Z	8828T224	000000
				30	62			23.8	3	Steel	6,700	10,000	Lubricated	30°	-40	250	3206-2Z	8828T217	000000
				35	72			27	3	Steel	8,950	9,000	Lubricated	30°	-40	300	3207-2Z	8828T218	000000


				40	80			30.2	3	Steel	10,600	8,000	Lubricated	30°	-40	300	3208-2Z	8828T219	000000
				50	90			30.2	3	Steel	11,400	7,000	Lubricated	30°	-40	300	3210-2Z	8828T221	000000




								Sealed

								10	30	14	1	Steel	1,700	17,000	Lubricated	30°	-40	210	3200-2RS	8828T311	000000


								12	32	15.9	1	Steel	2,250	15,000	Lubricated	30°	-40	210	3201-2RS	8828T312	000000
								15	35	15.9	1	Steel	2,500	14,000	Lubricated	30°	-40	210	3202-2RS	8828T313	000000
								17	40	17.5	1	Steel	3,200	12,000	Lubricated	30°	-40	210	3203-2RS	8828T314	00000
								17	47	22.2	1	Steel	4,850	11,000	Lubricated	30°	-40	210	3303-2RS	8828T322	000000
								20	47	20.6	3	Steel	4,450	10,000	Lubricated	30°	-40	210	3204-2RS	8828T315	000000
								20	52	22.2	3	Steel	5,300	9,000	Lubricated	30°	-40	210	3304-2RS	8828T323	000000
25								52	20.6	3	Steel	4,850	8,500	Lubricated	30°	-40	210	3205-2RS	8828T316	000000
25	62							25.4	3	Steel	7,150	7,500	Lubricated	30°	-40	210	3305-2RS	8828T324	000000
30	62							23.8	3	Steel	6,700	7,500	Lubricated	30°	-40	210	3206-2RS	8828T317	000000
35	72							27	3	Steel	8,950	6,300	Lubricated	30°	-40	210	3207-2RS	8828T318	000000


40	80	30.2	3					Steel	10,600	5,600	Lubricated	30°	-40	210	3208-2RS	8828T319	000000
50	90	30.2	3					Steel	11,400	4,800	Lubricated	30°	-40	210	3210-2RS	8828T321	000000

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