Electrically Insulated cylindrical roller bearings

Electrically Insulated cylindrical roller bearings have outer ring coating, inner ring coating and ceramic material rolling elements. Because of the higher cost of using ceramic material rolling elements, in most cases, the inner ring or outer ring 50-200 μm is used. Thick ceramic coating. The first two coatings are plasma spraying method to coat ceramic material on the bearing surface. This coating still maintains its insulation performance in a humid environment. The ceramic material rolling element insulated bearing is the rolling element. Using ceramic materials, it has excellent current resistance capability.

These three methods can make the cylindrical roller bearing achieve the effect of insulation, so that the bearing will not be damaged by current during operation, and it can resist the electric flashover generated under 1000V voltage. The thicker coating can resist the high voltage above 1000V. Discharge.

Electrically insulated bearings can avoid damage caused by electrical corrosion, so compared with ordinary bearings, they can be used in motors to ensure more reliable operation. Compared with other insulation methods, such as shaft or housing insulation, it is more cost-effective and reliable. The outer dimensions and basic technical characteristics of insulated bearings are the same as those of non-insulated bearings, so they can be 100% interchanged.

 

 

Normally Cylindrical roller bearings are available in a wide range of designs, series, variants and sizes. The main design differences are the number of roller rows and the inner/outer ring flanges as well as cage designs and materials.

Cylindrical Roller Bearings And insulated Cylindrical roller bearings also have many different design as follows

–Single Row Cylindrical Roller Bearings

–Double Row Cylindrical Roller Bearings

–High Capacity Cylindrical Roller Bearings

–Single Row Full Complement Cylindrical Roller Bearings

–Double Row Full Complement Cylindrical Roller Bearings

 

Designation	Principal dimensions			Basic load ratings		Fatique load limit	Speed ratings		Weight
Cylindrical roller bearings	mm	mm	mm	dynamic	static		Reference speed	Limiting speed	kg
	d	D	B	C[kN]	C0[kN]		[r/min]	[r/min]
NU 1010 ECP/C3VL0241	50	80	16	46.8	56	6.7	9500	9500	0.27
NU 210 ECM/C3VL0241	50	90	20	73.5	69.5	8.8	8500	9000	0.48
NU 310 ECM/C3VL0241	50	110	27	127	112	15	6700	8000	1.36
NU 1011 ECP/C3VL0241	55	90	18	57.2	69.5	8.3	8500	8500	0.4
NU 1011 ECML/C3VL0241	55	90	18	57.2	69.5	8.3	8500	13000	0.4
NU 211 ECM/C3VL0241	55	100	21	96.5	95	12.2	7500	8000	0.78
NU 311 ECM/C3VL0241	55	120	29	156	143	18.6	6000	7000	1.75
NU 1012 ML/C3VL0241	60	95	18	37.4	44	5.3	8000	13000	0.48
NU 1012 ECP/C3VL0241	60	95	18	58.3	73.5	8.8	8000	8000	0.48
NU 212 ECM/C3VL0241	60	110	22	108	102	13.4	6700	7500	0.1
NU 312 ECM/C3VL0241	60	130	31	173	160	21.2	5600	6700	2.2
NU 1013 ECP/C3VL0241	65	100	18	62.7	81.5	9.8	7500	7500	0.45
NU 213 ECM/C3VL0241	65	120	23	122	118	15.6	6300	6700	1.3
NU 313 ECM/C3VL0241	65	140	33	212	196	25.5	5300	6000	2.63
NU 1014 ECM/C3VL0241	70	110	20	76.5	93	12	7000	7000	0.7
NU 1014 ECP/C3VL0241	70	110	20	76.5	93	12	7000	7000	0.7
NU 214 ECM/C3VL0241	70	125	24	137	137	18	6000	6300	1.4
NU 314 ECM/C3VL0241	70	150	35	236	228	29	4800	5600	3.2
NU 1015 M/C3VL0241	75	115	20	58.3	71	8.5	6700	6700	0.75
NU 215 ECM/C3VL0241	75	130	25	150	156	20.4	5600	6000	1.5
NU 315 ECM/C3VL0241	75	160	37	280	265	33.5	4500	5300	4
NU 315 ECP/VL0241	75	160	37	280	265	33.5	4500	5300	4
NU 1016 ECM/C3VL0241	80	125	22	99	127	16.3	6000	6000	1.05
NU 216 ECM/C3VL0241	80	140	26	160	166	21.2	5300	5600	1.9
NU 316 ECM/C3VL0241	80	170	39	300	290	36	4300	5000	4.6
NU 1017 M/C3VL0241	85	130	22	68.2	86.5	10.8	6000	6000	1.1
NU 217 ECM/C3VL0241	85	150	28	190	200	25	4800	5300	2.3
NU 317 ECM/C3VL0241	85	180	41	340	335	41.5	4000	4800	5.4
NU 1018 M/C3VL0241	90	140	24	80.9	104	12.7	5600	5600	1.4
NU 218 ECM/C3VL0241	90	160	30	208	220	27	4500	5000	2.8
NU 318 ECM/C3VL0241	90	190	43	365	360	43	3800	4500	6.3
NU 1019 ML/C3VL0241	95	145	24	84.2	110	13.2	5300	5300	1.4
NU 219 ECM/C3VL0241	95	170	32	255	265	32.5	4300	4800	2.9
NU 319 ECM/C3VL0241	95	200	45	390	390	46.5	3600	4300	7.3
NU 1020 M/C3VL0241	100	150	24	85.8	114	13.7	5000	5000	1.5
NU 220 ECM/C3VL0241	100	180	34	285	305	36.5	4000	4500	4.05
NU 320 ECM/C3VL0241	100	215	47	450	440	51	3200	3800	8.7
NU 1022 M/C3VL0241	110	170	28	128	166	19.3	4500	4500	2.3
NU 222 ECM/C3VL0241	110	200	38	335	365	42.5	3600	4000	5.7
NU 322 ECM/C3VL0241	110	240	50	530	540	61	3000	3400	12
NU 1024 M/C3VL2071	120	180	28	134	183	20.8	4000	4000	2.7
NU 224 ECM/C3VL0241	120	215	40	390	430	49	3400	3600	6.7
NU 324 ECM/C3VL0241	120	260	55	610	620	69.5	2800	3200	14.9
NU 1026 M/C3VL2071	130	200	33	165	224	25	3800	3800	3.9
NU 226 ECM/C3VL2071	130	230	40	415	455	51	3200	3400	7.7
NU 326 ECM/C3VL2071	130	280	58	720	750	81.5	2400	3000	18.5
NU 1028 M/C3VL2071	140	210	33	172	245	27	3600	3600	4.1
NU 228 ECM/C3VL2071	140	250	42	450	510	57	2800	3200	9
NU 328 ECM/C3VL2071	140	300	62	780	830	88	2400	2800	25.5
NU 1030 M/C3VL2071	150	225	35	194	275	30	3200	3200	5
NU 230 ECM/C3VL2071	150	270	45	510	600	64	2600	2800	12
NU 330 ECM/C3VL2071	150	320	65	900	965	100	2200	2600	31.5

 

Single row cylindrical roller bearings have NU, NJ, NUP, N, RNU type, as well as the complete single row cylindrical roller bearings, cylindrical roller bearing without outer ring etc. Cylindrical roller bearings are also available in sealed or split designs. In sealed bearings, the rollers are protected from contaminants, water and dust, while providing lubricant retention and contaminant exclusion. This provides lower friction and longer service life. Split bearings are intended primarily for bearing arrangements which are difficult to access, such as crank shafts, where they simplify maintenance and replacements. 

And different types of cylindrical roller bearings also have their different design according to their feather, and also many kinds of cages, just like Brass cage, Pressed Steel cage, nylon cage etc.

So insulated cylindrical roller bearings also have above mentioned characteristic with normal cylindrical roller bearings.The bearings can meet the challenges of applications faced with heavy radial loads and high speeds. Accommodating axial displacement (except for bearings with flanges on both the inner and outer rings), they offer high stiffness, low friction and long service life. 

Cylindrical roller bearings with up to three times longer service life than the previous CoatMaster (China Bearing manufacturer, Top Quality standard), which is superior to all other conventional cylindrical roller bearings. The performance improvements of CoatMaster (China cylindrical roller bearings) over the past 15 years have permitted downsizing, whilst still maintaining the required performance.