轴径Shaft diameter (mm)	轴承代号 Bearing Designation		外形尺寸 Boundary Dimensions (mm)				基本额定负荷 Basic Load Ratings (N)		极限转速 Limiting Speeds (rpm)		重量 Weight (Kg)
	现行代号 Current Designation	原代号 Original Designation	d	Ew	B	rsmin	动Cr Dynamic	静Cor Static	脂润滑Grease	油润滑Oil
20	RN204	502204	20	40	14	1	15800	13100	13800	16400	0.05580
	RN304	502304	20	44	15	1.1	21800	17700	11400	13800	0.07970
25	RN25X42.51X12V		25	42.51	12	0.3	20100	21500	11400	13800	0.06951
	RN205	502205	25	45	15	1	17000	14900	11400	13800	0.07180
30	RN30X50.74X14V		30	50.74	14	0.3	31000	32500	9400	11300	0.10503
	RN206	502206	30	53.5	16	1	23900	22200	9400	11300	0.11210
	RN306	502306	30	62	19	1.1	35900	31900	7800	9200	0.19770
	SZ-201		30	62	27	1.1	74500	77400	7000	8500	0.31600
35	RN207	502207	35	61.8	17	1.1	31400	28900	8300	9900	0.15640
	RN307	502307	35	68.2	21	1.5	46400	43000	7800	9200	0.24560
40	RNN40X57.81X34		40	57.81	34	0.3	75000	111000	6600	7900	0.27890
	RN308	502308	40	77.5	23	1.5	58600	56900	6600	7900	0.36050
45	RN309	502309	45	86.5	25	1.5	72900	69900	5900	7000	0.45890
50	RN210		50	80.4	20	1.1	48100	50900	5900	7000	0.28790
	RN310	502310	50	95	27	2	88900	88800	5400	6500	0.62270
55	RN211		55	88.5	21	1.5	57900	62200	6000	7100	0.35670
60	RN212	502212	60	97.5	22	1.5	71800	79800	5400	6500	0.49052
70	RN214		70	110.5	24	1.5	82100	93500	4800	5700	0.64570