圆柱滚子轴承 Cylindrical Roller Bearings N…EN, NJ…EN, NUP…EN 系列

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轴径	型号	重量	尺寸					基本额定载荷		极限转速	原有型号
Shaft	Designation	Mass	Dimensions					Basic Load Ratings		Limiting	Original
Diameter			d	D	B	r1	r	动  Cr	静  Cor	Speed	Designation
								Dynamic	Static
mm		g				min.	min.	kN	kN	rpm
20	N  204EN	140	20	47	14	1.0	0.6	14.7	7.4	15000	202204E
	NJ 204EN	140	20	47	14	1.0	0.6	14.7	7.4	15000	262204E
	NUP204EN	140	20	47	14	1.0	0.6	14.7	7.4	15000	192204E
	N  304EN	201	20	52	15	1.1	0.6	20.5	10.4	12000	202304E
	NJ 304EN	201	20	52	15	1.1	0.6	20.5	10.5	12000	262304E
	NUP304EN	201	20	52	15	1.1	0.6	20.5	10.4	12000	192304E
25	N  205EN	148	25	52	15	1.0	0.6	16.8	8.8	12000	202205E
	NJ 205EN	148	25	52	15	1.0	0.6	16.8	8.8	12000	262205E
	NUP205EN	134	25	52	15	1.0	0.6	16.8	8.8	12000	192205E
	N  305EN	298	25	62	17	1.1	0.6	28.6	15.0	9500	202305E
	NJ 305EN	298	25	62	17	1.1	0.6	28.6	15.0	9500	262305E
	NUP305EN	256	25	62	17	1.1	0.6	28.6	15.0	9500	192305E
30	N  206EN	240	30	62	16	1.0	0.6	22.4	12.0	10000	202206E
	NJ 206EN	211	30	62	16	1.0	0.6	22.4	12.0	10000	262206E
	NUP206EN	214	30	62	16	1.0	0.6	22.4	12.0	10000	192206E
	N  306EN	410	30	72	19	1.1	1.1	36.9	20.0	8500	202306E
	NJ 306EN	410	30	72	19	1.1	1.1	36.9	20.0	8500	262306E
	NUP306EN	410	30	72	19	1.1	1.1	36.9	20.0	8500	192306E
35	N  207EN	298	35	72	17	1.1	0.6	31.9	17.6	9000	202207E
	NJ 207EN	297	35	72	17	1.1	0.6	31.9	17.6	9000	262207E
	NUP207EN	339	35	72	17	1.1	0.6	31.9	17.6	9000	192207E
	N  307EN	516	35	80	21	1.5	1.1	44.6	25.0	8000	202307E
	NJ 307EN	526	35	80	21	1.5	1.1	44.6	25.0	8000	262307E
	NUP307EN	562	35	80	21	1.5	1.1	44.6	25.0	8000	192307E
40	N  208EN	376	40	80	18	1.1	1.1	41.8	24.0	8500	202208E
	NJ 208EN	381	40	80	18	1.1	1.1	41.8	24.0	8500	262208E
	NUP208EN	392	40	80	18	1.1	1.1	41.8	24.0	8500	192208E
	N  308EN	650	40	90	23	1.5	1.1	56.1	32.5	6700	202308E
	NJ 308EN	640	40	90	23	1.5	1.1	56.1	32.5	6700	262308E
	NUP308EN	726	40	90	23	1.5	1.1	56.1	32.5	6700	192308E

说明：
1.表中所列基本额定载荷、极限转速和重量，仅供选择参考用。
2.轴承的保持架如由塑料制成，在型号后加TN，允许工作温度：120℃连续，150℃临时，180℃短期。
3.脂润滑时，极限转速为表列数值的60%。
Note:
1.These load, speed and mass is reference of choice only.
2.If the cages are made of plastics, suffix "TN" is added to the bearing No.,the maximum
allowable working themperrature is 120℃ in continuous working ,150℃ in temporary
working and 180℃ in short working.
3.With grease lubrication, 60% of these limiting speed will apply.