Double-row cylindrical roller bearing (standard series) bore 25-850 mm

Double-row cylindrical roller bearing (standard series) bore 25-850 mm

Double-row cylindrical roller bearings

Double-row cylindrical roller bearing (standard series) bore 25-850 mm

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Overall dimensions（mm)						Rated load(KN)		Rated speed min^-1		Bearing code		Installation dimensions(mm)							Weight(kg)
d	D	B	γ(minimum)	F_W	E_W	C_r	C_or	Grease lubrication	Oil lubrication	Cylindrical hole	Conical hole	D_a (minimum）	d_a (maximum）	d_1a (minimum)	d_c (minimum)	d_a (maximum）	D_a (minimum）	γ_a (maximum)	(Reference)
300	460	118	4	—	418	1290	2460	1200	1400	NN 3060	NN 3060 K	316	—	319	—	444	422	3	70.7
300	420	118	3	336	—	1230	2870	1200	1500	NNU 4960	NNU 4960 K	313	335	318	343	407	—	2.5	51.9
300	420	118	3	—	388	1230	2870	—	—	NN 4960	NN 4960 K	313	—	318	—	407	398	2.5	51.6
300	380	80	2.1	324	—	690	1760	—	—	NNU 4860	—	318	—	—	331	—	—	2	21.7
280	460	146	5	—	413	1520	2790	—	—	NN 3156	NN 3156 K	306	—	319	—	—	431	4	95.7
280	420	106	4	320	—	1080	2080	—	—	NNU 3056	—	296	302	298	326	404	—	3	51.4
280	420	106	4	—	384	1080	2080	1300	1500	NN 3056	NN 3056 K	296	—	298	—	404	388	3	51.1
280	380	100	2.1	309	—	960	2230	1300	1700	NNU 4956	NNU 4956 K	291	308	295	315	369	—	2	33
280	380	100	2.1	—	355	960	2230	—	—	NN 4956	NN 4956 K	291	—	295	—	369	364	2	32.9
280	380	75	2.1	—	355	695	1460	—	—	NN 3956	NN 3956 K	297	—	304	—	—	361	2	22.7
280	350	69	1.1	—	329	445	1160	—	—	NN 4856	—	293	—	—	—	—	336	1	15.3
260	440	144	4	—	393	1480	2660	—	—	NN 3152	NN 3152 K	282	—	294	—	—	415	3	89.1
260	400	140	4	300	—	1550	3250	—	—	NNU 4052	—	282	—	—	306	—	—	3	65
260	400	140	4	—	364	1550	3250	—	—	NN 4052	NN 4052 K	282	—	294	—	—	376	3	59.7
260	400	104	4	300	—	1030	1920	—	—	NNU 3052	—	276	282	278	306	384	—	3	48.1
260	400	104	4	—	364	1030	1920	1400	1700	NN 3052	NN 3052 K	276	—	278	—	384	368	3	47.7
260	360	100	2.1	289	—	935	2100	1400	1800	NNU 4952	NNU 4952 K	271	288	275	295	349	—	2	31.1
260	360	100	2.1	—	335	935	2100	—	—	NN 4952	NN 4952 K	271	—	275	—	349	342	2	28.3
260	360	75	2.1	—	335	670	1380	—	—	NN 3952	NN 3952 K	277	—	283	—	—	342	2	21.4
240	400	128	4	—	358	1170	2040	—	—	NN 3148	NN 3148 K	262	—	272	—	—	376	3	64.2

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