Backing Bearings – EGI Bearings – Backing Bearings and Crusher Bearings

Designation	d	D	C	B	r	r1	Cr	Cor	Pattern	T	Weight
BNUP102480	50	120	80	80	1.5	1.5	268	379	3	34.976	5.15
BNUP102485	50	120	85	85	1.5	1.5	303	427	3	34.984	5.40
BNUP112426-2LS	54.999	120	25.999	25.999	1.6	1.6	77.7	138	13	32.4672	1.69
BNUP112452	55	120	52.197	52	1.6	1.6	203	341	9	32.483	3.27
BNUP123295	60	160	95	95	1.5	2	398	589	3	46.484	11.5
BNUP123190	62	155	90	90	1	2	356	529	3	46.484	9.97
BNUP1231110	62	155	110	110	1	2	404	622	2	46.484	12.2
BNTB133370	65	165	70	70	1.5	2	424	586	10	49.982	8.83
BNUP1334100	65	170	100	100	2	2	398	597	3	52.480	13.5
BNUP143275	70	160	75	75	1.5	1.5	305	416	12	44.977	10.1
BNTB143290	70	160	90	90	1.5	1.5	379	667	1	45.000	10.5
BNTB184494	90	220	94	94	2	1.5	687	997	10	64.976	21.2
BNUP1844120	90	220	120	120	3	3	650	115	12	65.000	26.0
BNUP184495	90	220	95	95	2	2	532	795	3	64.982	20.9
BNTBP1844130	90	220	130	130	2	2	699	1130	2	64.982	28.7
BNUP1846100	90	230	100	100	2	3	643	982	3	69.980	24.2
BNUP1852125	90	260	125	125	2	2	923	1520	3	84.970	41.3
BNTB1636100	80	180	100	100	2	2	478	871	1	50.000	14
BNTB1836100	90	180	100	100	2	2	460	840	12	45.000	13
BNTB1840134	90	200	134	134	2	2	650	1150	1	55.000	18.9
BNTB1945125	90	225	125	125	3	3	830	1300	1	62.474	27.2
BNUB2045120-2LS	99.995	225	120	120	1.5	1.5	625	995	13	62.474	26
BNUB2052130	100	260	130	130	2	2	846	1290	5	79.97	41
BNUP2052130	100	260	130	130	2	2	952	1580	3	79.97	41.5
BNUP205295	100	260	95	95	2	2	698	1060	3	79.97	30.2
BNUP2052105	100	260	105	105	2	2	710	787	3	79.97	33.5
BNTB2045120	100	225.021	120	120	3	3	714	1350	1	62.474	27.5
BNUP2045120	100	225	120	120	3	1.5	676	1100	12	62.4775	26.3
BNTB2045130	100	225	130	130	3	1.5	740	1420	1	62.48	26.2
BNTB204895	100	240	95	95	3	1.5	750	1150	11	62.48	21.7
BNTB204580	100	225.021	80	80	15	15	607	991	8	62.474	18.2
BNTB2256115	110	280	115	115	3	2	879	1420	2	72.47	41.9
BNUP2256165	110	280	165	165	2	2	1120	1880	2	84.965	60.2
BNUP2470165	120	350	165	165	2	3	1370	2220	12	114.965	98.3
BNUP2460160	120	300	160	160	2	3	1240	2100	2	89.966	66.8
BNUP2456165	120	280	165	165	2	3	1100	1940	3	79.965	57.7
BNUP2670175	130	350	175	175	2	3	1400	2300	12	109.965	101
BNUB2660172-2LS	130	300	172.644	172.644	4	3.5	1240	2150	4	84.955	68.5
BNUBP2660172	130	300	172.644	172.644	4	3	1360	2410	12	84.955	69.6
BNUB2660172	130	300	172.644	172.644	4	3.5	1320	2330	11	84.955	69.2
BNTB2660172	130	300	172.644	172.644	4	3.5	1560	2900	1	84.955	72.6
BNUP2660160	130	300	160	159.5	5	3.5	1210	2070	12	84.955	64.2
BNTB2660160	130	300	160	159.5	4	3.5	1330	2340	1	84.9617	64.8
BNUP2660132	130	300.02	132	129	2	3	1050	1740	3	85.01	53
BNUP2660130	130	300.02	130	129	2	3	1050	1740	3	85.01	52.2
BNUB3681224-2LS	179.984	406.43	224.25	220	4	3	1870	3340	4	113.181	150
BNTB3681224	179.984	406.43	223.96	217	4	0.5	2350	4500	1	113.155	161
BNUP3681224	180	406.42	224.25	224	4	1	2360	4390	12	113.155	164
BNTB3681217	180	406.4	217	217	4	3.5	2450	4760	1	113.16	160
BNUP3681171-2LS	180	406.42	171.04	171.04	4	3	1550	2700	4	113.155	121
BNUP3681171	180	406.42	171.04	171.04	4	1	1910	3340	12	113.155	124
BNTB3681171	180	406.42	171.04	171.04	4	4	2060	3810	1	113.155	130

Designation	d	D	C	B	r	r1	Cr	Cor	Pattern	T	Weight
NNCF3682235	180	410	–	235	–	–	–	–	1	–	170.2
NNCF41104152	205	520	–	152	–	–	–	–	11	–	198
NNCF368292	180	410	–	92.5	–	–	–	–	1	–	59.8
BNUP3681224	180	406.42	224.25	224	4	1	2360	4390	12	113.155	164
BNUB3681224-2LS	179.984	406.43	224.25	220	4	3	1870	3340	4	113.181	150
BNTB3681224	179.984	406.43	223.96	217	4	0.5	2350	4500	1	113.155	161
NNCF3680179HC	180	406.02	–	181	–	–	–	–	2	–	129
NNCF3680224Y	180	406.42	–	224	–	–	–	–	1	–	170
NNCF3680224	180	406.42	–	224	–	–	–	–	1	–	170
BNTB3681217	180	406.4	217	217	4	3.5	2450	4760	1	113.16	160
BNUP3681171-2LS	180	406.42	171.04	171.04	4	3	1550	2700	4	113.155	121
BNUP3681171	180	406.42	171.04	171.04	4	1	1910	3340	12	113.155	124
BNTB3681171	180	406.42	171.04	171.04	4	4	2060	3810	1	113.155	130
NNCF3680170X	180	406.42	–	171	–	–	–	–	2	–	128.2
NNCF3680171	180	406.4	–	170	–	–	–	–	12	–	126.5
NNCF3680170P4	180	406.42	–	170	–	–	–	–	1	–	131
NNCF3680170P4Y	180	406.42	–	170	–	–	–	–	1	–	131
NNCF3680170HC	180	406.42	–	167	–	–	–	–	1	–	126.8
NNCF298034	145	400	–	168	–	–	–	–	1	–	130.5
NNCF3272140	160	360.02	–	140	–	–	–	–	1	–	80
BNUP2670175	130	350	175	175	2	3	1400	2300	12	109.965	101
NNCF2664130Y	130	320	–	130	–	–	–	–	12	–	60.7
C792726EK	130	300.02	–	172.64	–	–	–	–	1	–	72.5
549722P4X	130	300.02	–	172.65	–	–	–	–	12	–	69.02
NNCF2660160	130	300.02	–	160	–	–	–	–	1	–	66
BNUB2660172-2LS	130	300	172.644	172.644	4	3.5	1240	2150	4	84.955	68.5
NNCF2660150	130	300.02	–	150	–	–	–	–	1	–	62
BNUBP2660172	130	300	172.644	172.644	4	3	1360	2410	12	84.955	69.6
BNUB2660172	130	300	172.644	172.644	4	3.5	1320	2330	11	84.955	69.2
NNCF2660170	130	300	–	172.64	–	–	–	–	1	–	71.42
BNTB2660172	130	300	172.644	172.644	4	3.5	1560	2900	1	84.955	72.6
NNCF2660172SKP4	130	300	–	172.6	–	–	–	–	12	–	69.8
NNCF2660171	130	300	–	171.6	–	–	–	–	13	–	69.8
BNUP2660160	130	300	160	159.5	5	3.5	1210	2070	12	84.955	64.2
BNTB2660160	130	300	160	159.5	4	3.5	1330	2340	1	84.9617	64.8
BNUP2660132	130	300.02	132	129	2	3	1050	1740	3	85.01	53
NNCF2660159P4	130	300	–	160	–	–	–	–	1	–	65.5
BNUP2660130	130	300.02	130	129	2	3	1050	1740	3	85.01	52.2
NNCF2658100	130	290	–	100	–	–	–	–	11	–	38.42
NNCF2656100	130	280	–	100	–	–	–	–	11	–	35.13
BNUP2470165	120	350	165	165	2	3	1370	2220	12	114.965	98.3
BNUP2460160	120	300	160	160	2	3	1240	2100	2	89.966	66.8
BNUP2456165	120	280	165	165	2	3	1100	1940	3	79.965	57.7
NNCF245231	120	260	–	154	–	–	–	–	1	–	46.56
549724P4	120	260	–	160	–	–	–	–	12	–	–
BNTB2256115	110	280	115	115	3	2	879	1420	2	72.47	41.9
BNUP2256165	110	280	165	165	2	2	1120	1880	2	84.965	60.2
NNCF2256120	110	280.2	–	120	–	–	–	–	11	–	44.9
NNCF2803110	110	280	–	115	–	–	–	–	1	–	41
NNCF2252140	110	260	–	140	–	–	–	–	11	–	45
NNCF2252125	110	260	–	125	–	–	–	–	2.1	–	40
NNCF2252111HY	110	260	–	110	–	–	–	–	11	–	–
NNCF2252110HC	110	260	–	110	–	–	–	–	12	–	35.7
NNCF2252110H	110	260	–	110	–	–	–	–	13	–	35.3
BNUB2052130	100	260	130	130	2	2	846	1290	5	79.97	41
260110P4	110	260	–	110	–	–	–	–	12	–	35
BNUP2052130	100	260	130	130	2	2	952	1580	3	79.97	41.5
BNUP205295	100	260	95	95	2	2	698	1060	3	79.97	30.2
BNUP2052105	100	260	105	105	2	2	710	787	3	79.97	33.5
BNTB1845125	90	225	125	125	3	3	830	1300	1	62.474	27.2
NNCF2045120P4	100	225	–	120	–	–	–	–	1	–	26.8
BNTB2045120	100	225.021	120	120	3	3	714	1350	1	62.474	27.5
BNUP2045120	100	225	120	120	3	1.5	676	1100	12	62.4775	26.3
BNTB2045130	100	225	130	130	3	1.5	740	1420	1	62.48	26.2
20DC23120	100	225	–	120	–	–	–	–	11	–	28
BNUB2045120-2LS	99.995	225	120	120	1.5	1.5	625	995	13	62.474	26
NNCF204596	100	225	–	96	–	–	–	–	11	–	22
BNTB204895	100	240	95	95	3	1.5	750	1150	11	62.48	21.7
BNTB204580	100	225.021	80	80	15	15	607	991	8	62.474	18.2
NNCF41104160	205	520	–	160	–	–	–	–	11	–	200.2
NNCF41104167	205	520	–	167	–	–	–	–	12	–	217.8
NNCF41104240HC	205	520	–	240	–	–	–	–	1	–	275.7

What are Backing Bearings?

Backing bearings are an essential component in various mechanical systems, primarily serving as support structures for rotating shafts. These bearings are designed to handle radial loads and ensure smooth motion while minimizing friction. Their role is crucial in applications ranging from small machinery to large industrial equipment. The design of backing bearings often involves materials that can withstand high stresses and wear. Commonly used materials include steel, bronze, and composite materials, which provide durability and longevity. Depending on the application, backing bearings can be customized in terms of size and load capacity to meet specific operational requirements. Backing bearings can also come in different configurations, such as plain bearings or rolling-element bearings. The choice of bearing type significantly impacts the efficiency and performance of the machinery it supports. Understanding these differences is vital for selecting the appropriate backing bearing for a given application.

Applications of Backing Bearings

Backing bearings find their applications across various industries, including automotive, aerospace, and manufacturing. In the automotive sector, they are commonly used in engines, transmissions, and wheel hubs to support rotating components and facilitate smooth operation. The reliability of these bearings is critical, as any failure can lead to significant downtime and costly repairs. In aerospace applications, backing bearings are utilized in systems where precision and weight savings are paramount. They support moving parts in engines and landing gear, ensuring that components can operate under high-stress conditions without failure. The selection of high-quality materials and precise engineering in these bearings is essential for safety and performance in flight. Manufacturing processes, particularly in conveyor systems and robotics, also rely heavily on backing bearings. These bearings help reduce friction and wear on moving parts, enhancing productivity and extending the lifespan of equipment. The efficient operation of machinery in production lines often hinges on the quality and performance of the backing bearings used.

Maintenance of Backing Bearings

Proper maintenance of backing bearings is crucial to ensure their longevity and optimal performance. Regular inspection for signs of wear, such as scoring or pitting, can help identify potential issues before they lead to failure. Lubrication is another essential aspect of maintenance, as it reduces friction and protects against corrosion. Different types of backing bearings may require specific lubrication methods. For example, plain bearings often benefit from oil or grease, while rolling-element bearings may need periodic relubrication depending on operating conditions. Establishing a maintenance schedule based on manufacturer recommendations can help extend the life of these bearings. Monitoring operating temperatures and vibration levels is also important in maintaining backing bearings. Excessive heat can indicate inadequate lubrication or misalignment, while unusual vibration patterns may signal wear or damage. Implementing a proactive maintenance program can significantly reduce downtime and enhance the reliability of machinery utilizing backing bearings.