Backing bearings

Cylindrical roller backing bearings are available with two or three rows of rollers, in full roller bearing (without cage) or cage bearing form, ei...

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Cylindrical roller backing bearings are available with two or three rows of rollers, in full roller bearing (without cage) or cage bearing form, either with or without integral retaining edges or retaining rings. The advantages of bearings without retaining edges are their particularly simple geometry and high radial load capacity. Cylindrical roller backing bearings without flanged edges or retaining rings cannot carry any axial loads. Therefore it is necessary to place bronze or plastic thrust washers between the outer ring and the side of the supporting saddle.Backing bearings with a retaining edge (or retaining ring) do not require thrust washers because the design of these bearings allows them to withstand the simultaneous action of radial and axial forces. Cylindrical roller bearings are commonly used as backing bearings.

Main parameters of backing bearing

Bearing NO.			BNPF102256/2RZ	BNUP112452	BNUPA112452
Boundary Dimensions（㎜）		d	50	55
		D	110	120	120
		B	56	52	52
		C	55	51.2	51.2
		H	30	32.5	32.5
		d1	65	70	70
		D1	89.5	98	84.2
		E	80.6	85.3	89.1
		F	60.6	63.3	65.1
		rmin	1	1	1
		K	4	4	3
		N*	3	3	3
Basic Load Rating（KN）	Bearings	Dynamic	194	155	171
	Bearings	Static	309	219	237
	roller	Dynamic	129	121	125
	roller	Static	209	170	170
Large radial load（KN）		Dynamic	96	140	86
Large radial load（KN）		Static	136	149	122
Mass（㎏）			2.9	3.1	3.5
Design			1.1	2	3

Click here to view more backing bearing parameters

Bearing NO.	Boundary Dimensions（㎜）												Basic Load Rating（KN）				Large radial load（KN）		Mass（㎏）	Design
	Boundary Dimensions（㎜）												Bearings		roller		Large radial load（KN）
	d	D	B	C	H	d1	D1	E	F	rmin	K	N*	Dynamic	Static	Dynamic	Static	Dynamic	Static
BNPF102256/2RZ	50	110	56	55	30	65	89.5	80.6	60.6	1	4	3	194	309	129	209	96	136	2.9	1.1

BNUP112452	55	120	52	51.2	32.5	70	98	85.3	63.3	1	4	3	155	219	121	170	104	149	3.4	2
BNUPA112452		120	52	51.2	32.5	70	84.2	89.1	65.1	1	3	3	171	237	125	170	86	122	3.5	3
BKBF112452		120	52.2	52	32.5	70		77	65	1	1.6	2	168	372	130	262	166	235	3.5	4
BNNB112460/BH1		120	60	60	32.5			84	68	1	4.5	4	208	356	162	255	159	227	3.8	6
BNUP112464		120	64	63.2	32.5	70	98	85.3	63.3	2	4	3	206	317	151	227	130	185	4.2	2

BNNB123374	60	165	74	74	32.5			108	76	1	5	4	357	530	280	417	306	437	10	6

BNBA133370	65	165	70	70	50			116.5	76.5	0.6	4	6	361	472	285	382	185	264	9.5	7

BNUP143275	70	160	75	74.2	45	88	130	116	86	2	5	3	190	360	136	246	160	230	9	2
BNUP143290/2RZ		160	90	89.2	45	88	130	116	86	2	5	3	347	550	262	405	220	320	10	1
BNPF143290/2RZ		160	90	89.2	45	88	130	116	86	2	5	3	425	720	300	485	240	340	10.5	1.1
BNTB143290/IS		160.02	90	90	45			108.8	82.8	1	5	2×4	393	695	289	500	330	480	10	8.2
BNTF143290/IS		160.02	90	90	45			108.8	82.8	1	5	2×4	453	846	326	580	350	510	10.5	8.3
BNTF143290		160.02	90	90	45			108.8	82.8	1	5	2×4	453	846	326	580	350	510	10.5	8.1
NNCF143290V		160	90	90	45			109	83	1	5	2×4	453	846	326	580	350	510	10.6	8.3

BNBA184494	90	220	94	94	65			160	108	1	7	6	690	1000	513	740	310	440	21.5	7
BNAF184494		220	94	94	65			160	108	1	7	6	762	1140	560	850	325	465	21	7.1
BNTBP1844120		220	120	120	65	130	150	159	121	1	5	2×3	625	1110	471	755	390	555	26.5	9
BNTPF1844120		220	120	120	65	130	150	159	121	1	5	2×3	732	1360	479	890	410	590	27	9.1
BNTF1844120		220.02	120	120	65			156.3	120.3	1	5	2×3	810	1600	563	1050	510	720	27.5	8.3

BNUP204596	100	225	96	95.2	62.5	124	183	163.5	119.5	2	6	6	543	830	413	525	350	500	22.5	2
BNUP2045120/2RZ		225	120	119	62.5	124	183	163.5	119.5	2	6	6	672	1090	505	810	370	520	28	1
BNPF2045120/2RZ		225	120	119	62.5	124	183	163.5	119.5	2	6	6	795	1370	580	960	390	550	28	1.1
BNUP2045120/BH1		225	120	119	62.5	124	183	163.5	119.5	2	6	6	672	1090	505	810	370	520	28	2
BNPF2045120/BH1		225	120	119	62.5	124	183	163.5	119.5	2	6	6	795	1370	580	960	390	550	28	2.1
BNTB2045120/IS		225	120	120	62.5			165.3	120.3	1	5	2×3	740	1410	540	990	600	860	24.5	8.2
BNTF2045120		225	120	120	62.5			166.3	120.3	1	5	2×3	850	1700	605	1150	630	890	28	8.3
BNFP2045120		225	120	120	62.5			166.3	120.3	1	6	2×6	850	1700	605	1150	630	890	28	5.1
BNUP2045126		225	126	119	62.5			163.5	119.5	2	6	6	672	1090	505	810	370	520	28	3
NNCF2045130		225	130	130	62.5			156	120	1	6	2×6	750	1440	540	1000	600	850	32	8

NNCF224690	110	230	90	90	60			172	132	1	6	6	663	1174	500	860	490	640	22	6
NNCF2246110		230	110	110	60			172	132	1	6	6	794	1480	570	1050	580	860	30	6
NNCF2246120		230	120	120	60			172	132	1	6	6	857	1632	605	1150	630	890	32	6
BNBA225298		260	98	98	75			190	134	1	6	6	782	1180	565	840	310	440	31	7
BNPBF2252110		260	110	110	75	129	210	184.2	132.2	1	6	6	849	1370	627	990	470	670	35	5
BNBA2252125		260	125	125	75			190	134	1	6	6	1010	1630	690	1080	390	560	40	7
NNCF2260108		300	108	108	95			214	146	1	6	6	1480	1620	1010	1080	530	560	48	6

NNCF2452125	120	260	125	125	70			193	141	1	6	6	1030	1780	700	1250	420	900	40	6
BNTB2452125		260	125	125	70			193	141	1	6	2×6	992	1695	680	1200	410	850	40	8
BNUP2452160		260	160	160	70			193	141	1	8	6	1540	1990	1140	1450	1000	1200	50	5.1

BNUP2660150	130	300.02	150	149	85.01	165	243	219.3	151.3	4	8	6	1150	2150	850	1560	890	1280	61.5	2
BNUPA2660160		300.02	160	159.5	85.01	174	213	222.5	162.5	1	6	6	1250	2170	870	1430	610	870	64.5	3
BNTF2660160		300.02	160	160	85.01			218.4	159.4	1	6.5	2×6	1510	2770	1040	1810	795	1130	65.5	8.1
NNCF2660168-2RS		300.02	170	168	85.01			218.4	159.4	1	6.5	2×6	1510	2770	1040	1810	795	1130	70	5.2
BNUP2660172		300.02	172.6	171.6	85.01	165	243	219.3	151.3	4	8	6	1480	2690	995	1720	830	1180	68	2
BNTB2660172		300.02	172.6	172.6	85.01			218.4	159.4	2.7	6.5	2×6	1570	2910	1070	1880	790	1120	72.5	8
BNTF2660172		300.02	172.6	172.6	85.01			218.4	159.4	2.7	6.5	2×6	1670	3230	1140	2050	820	1160	71.5	8.1
BNUP2660172/2RZ		300.02	172.6	171.6	85.01	165	243	219.3	151.3	3	8	6	1320	2100	940	1490	620	890	70	1
BNUP2660172		300.02	172.6	171.6	85.01	165	243	219.3	151.3	3	8	6	1320	2100	940	1490	620	890	70	2

BNUP3681171	180	406.40	171.0	170	113.2	230	331	298.5	214.5	3	8	6	1860	3120	1350	2210	890	1270	130	2
BNUP3681224/2RZ		406.40	224	223	113.2	230	331	298.5	214.5	3	8	6	2360	4250	1710	2990	1150	1620	170	1
BNUP3681224/BH1		406.40	224	223	113.2	230	331	298.5	214.5	3	8	6	2360	4250	1710	2990	1150	1620	170	2
BNTPA3681171		406.42	171	170	113.2	240		293.3	217.3	1	8	2×6	1760	3270	1250	2230	1070	1530	130	10
BNTB3681171/IS		406.42	171	171	113.2			287.4	217.4	1	8	2×6	1910	3640	1330	2400	1290	1840	130	8.2
BNTF3681171/BH1		406.42	171	171	113.2			293.4	217.4	1	8	2×6	2020	3700	1330	2470	920	1310	130	8.3
NNCF3681182-2RS		406.42	182	179	113.2			227	299	1.5	8	2×6	2080	3600	1350	2500	920	1310	135	5.2
BNTB3681217		406.42	217	217	113.2			293.4	217.4	1	8	2×6	2440	4730	1720	3170	1490	2110	165	8
BNTB3681224		406.42	224	224	113.2			293.4	217.4	1	8	2×6	2440	4730	1730	3200	1530	2170	170	8
BNTB3681224/BH2		406.42	224	224	113.2			293.4	217.4	1	8	2×6	2440	4730	1730	3200	1530	2170	170	8

BNTB4092171	200	460	171	170	130	249	373	321.7	241.7	4	6	10	1880	3340	1440	2530	1310	1860	166	2
BNUP4092241		460	241	240	130	249	373	321.7	241.7	4	6	10	2660	5250	2010	3890	1790	2540	239	2

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