ER-Type Bearings

ER-type ball bearings feature an extended inner ring that provides extra shaft support because these versatile bearings are locked to the shaft with setscrews. ER bearings are available in both inch and metric sizes from 12 to 60 mm and 1/2 to 2-7/16 inches. Features include a set-screw lock for fast, secure mounting, OD mounted snap ring for axial location and a wide inner ring with a steel retainer.

For pricing and availability, please click a part number.

Part Number	Shaft Size d		Dimensions (mm) (in)									Load Ratings		Max RPM	Wt. kg
Part Number	mm	in	A	B	C	D	E	F	G	J	W	Dynamic C N lbf	Static Co N lbf	Max RPM	Wt. kg
SER201-12MM	12		19.50	11.50	28.30	47.00	12.06	15.08	52.70	31.00	15.90	12800	6600	8800	0.3
SER202-15MM	15		19.50	11.50	28.30	47.00	12.06	15.08	52.70	31.00	15.90	12800	6600
SER203-17MM	17		19.50	11.50	28.30	47.00	12.06	15.08	52.70	31.00	15.90	12800	6600
SER201-8		0.500	0.77	0.45	1.11	1.85	0.47	0.59	2.07	1.22	0.63	2900	2500
SER202-10		0.625	0.77	0.45	1.11	1.85	0.47	0.59	2.07	1.22	0.63	2900	2500
SER204-20MM	20		19.50	11.50	28.30	47.00	12.06	15.08	52.70	31.00	15.90	12800	6600	7450	0.3
SER204-12		0.750	0.77	0.45	1.11	1.85	0.47	0.59	2.07	1.22	0.63	2900	2500	7450	0.3
SER205-25MM	25		21.80	13.10	34.00	52.00	15.29	15.78	57.90	34.90	19.10	13810	7700	6250	0.3
SER205-14		0.875	0.86	0.52	1.34	2.05	0.60	0.62	2.28	1.37	0.75	3140	1750
SER205-15		15/16	0.86	0.52	1.34	2.05	0.60	0.62	2.28	1.37	0.75	3140	1750
SER205-16		1.000	0.86	0.52	1.34	2.05	0.60	0.62	2.28	1.37	0.75	3140	1750
SER206-30MM	30		22.20	15.90	40.30	62.00	17.02	15.93	67.70	38.10	22.20	18920	11000	5300	0.4
SER206-18		1.125	0.87	0.63	1.59	2.44	0.67	0.63	2.67	1.50	0.87	4300	2500
SER206-19		1.188	0.87	0.63	1.59	2.44	0.67	0.63	2.67	1.50	0.87	4300	2500
SER206-20		1.250	0.87	0.63	1.59	2.44	0.67	0.63	2.67	1.50	0.87	4300	2500
SER207-35MM	35		25.40	17.50	46.90	72.00	18.62	18.32	78.60	42.90	23.80	25430	15130	4500	0.5
SER207-20		1.125	1.00	0.69	1.85	2.84	0.73	0.72	3.09	1.69	0.94	5780	3440
SER207-22		1.375	1.00	0.69	1.85	2.84	0.73	0.72	3.09	1.69	0.94	5780	3440
SER207-23		1.438	1.00	0.69	1.85	2.84	0.73	0.72	3.09	1.69	0.94	5780	3440
SER208-40MM	40		30.20	19.00	52.40	80.00	22.62	21.10	86.60	49.20	27.80	32030	19580	4000	0.7
SER208-24		1.500	1.19	0.75	2.06	3.15	0.89	0.83	3.41	1.94	1.09	7820	4450	4000	0.7
SER209-45MM	45		30.20	19.00	57.40	85.00	22.62	21.10	91.60	49.20	27.80	32500	20280	3700	0.8
SER209-26		1.625	1.19	0.75	2.26	3.35	0.89	0.83	3.61	1.94	1.09	7390	4610
SER209-27		1.688	1.19	0.75	2.26	3.35	0.89	0.83	3.61	1.94	1.09	7390	4610
SER209-28		1.750	1.19	0.75	2.26	3.35	0.89	0.83	3.61	1.94	1.09	7390	4610
SER210-50MM	50		32.60	19.00	61.80	90.00	22.62	23.84	96.50	51.60	28.60	35000	22830	3400	0.9
SER210-30		1.875	1.28	0.75	2.43	3.54	0.89	0.94	3.80	2.03	1.13	7900	5190
SER210-31		1.938	1.28	0.75	2.43	3.54	0.89	0.94	3.80	2.03	1.13	7900	5190
SER210-32		2.000	1.28	0.75	2.43	3.54	0.89	0.94	3.80	2.03	1.13	7900	5190
SER211-55MM	55		33.40	22.20	68.70	100.00	24.22	23.84	106.50	55.60	30.20	43030	28950	3100	1.2
SER211-32		2.000	1.31	0.87	2.70	3.94	0.95	0.94	4.19	2.19	1.19	9780	6580
SER211-34		2.125	1.31	0.87	2.70	3.94	0.95	0.94	4.19	2.19	1.19	9780	6580
SER211-35		2.188	1.31	0.87	2.70	3.94	0.95	0.94	4.19	2.19	1.19	9780	6580
SER212-60MM	60		39.70	25.40	75.70	110.00	25.82	29.40	116.60	65.10	31.80	52000	35590	2800	1.6
SER212-36		2.250	1.56	1.00	2.98	4.34	1.02	1.16	4.59	2.56	1.25	11800	8090
SER212-38		2.375	1.56	1.00	2.98	4.34	1.02	1.16	4.59	2.56	1.25	11800	8090
SER212-39		2.438	1.56	1.00	2.98	4.34	1.02	1.16	4.59	2.56	1.25	11800	8090