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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Dimensions（mm)						Rated load(KN)		Rated speed (min)^-1		Bearing Designation		Install Dimensions(mm)							Weight(kg)
d	D	B	γ(Minimum)	F_W	E_W	C_r	C_or	Grease lubrication	Oil lubrication	Cylindrical hole	Tapered hole	D_a (Minimum）	d_a (Maximum）	d_1a (Minimum)	d_c (Minimum)	d_a (Maximum）	D_a (Minimum）	γ_a (Maximum)	(reference)
280	420	106	4	—	384	1080	2080	1300	1500	NN 3056	NN 3056 K	296	—	298	—	404	388	3	-
280	380	100	2.1	309	—	960	2230	1300	1700	NNU 4956	NNU 4956 K	291	308	295	315	369	—	2	-
280	380	100	2.1	—	355	960	2230	—	—	NN 4956	NN 4956 K	291	—	295	—	369	364	2	-
280	380	75	2.1	—	355	695	1460	—	—	NN 3956	NN 3956 K	297	—	304	—	—	361	2	-
260	440	144	4	—	393	1480	2660	—	—	NN 3152	NN 3152 K	282	—	294	—	—	415	3	-
260	400	140	4	—	364	1550	3250	—	—	NN 4052	NN 4052 K	282	—	294	—	—	376	3	-
260	400	104	4	—	364	1030	1920	1400	1700	NN 3052	NN 3052 K	276	—	278	—	384	368	3	-
260	360	100	2.1	289	—	935	2100	1400	1800	NNU 4952	NNU 4952 K	271	288	275	295	349	—	2	-
260	360	100	2.1	—	335	935	2100	—	—	NN 4952	NN 4952 K	271	—	275	—	349	342	2	-
260	360	75	2.1	—	335	670	1380	—	—	NN 3952	NN 3952 K	277	—	283	—	—	342	2	-
240	400	128	4	—	358	1170	2040	—	—	NN 3148	NN 3148 K	262	—	272	—	—	376	3	-
240	360	118	3	—	330	1240	2600	—	—	NN 4048	NN 4048 K	259	—	269	—	—	340	2.5	-
240	360	92	3	274	—	855	1600	—	—	NNU 3048	NNU 3048 K	253	259	256	280	347	—	2.5	-
240	360	92	3	—	330	855	1600	1500	1800	NN 3048	NN 3048 K	253	—	256	—	347	334	2.5	-
240	320	80	2.1	263	—	625	1450	1600	2000	NNU 4948	NNU 4948 K	251	262	254	269	309	—	2	-
240	320	80	2.1	—	300	625	1450	—	—	NN 4948	NN 4948 K	251	—	254	—	309	302	2	-
240	320	60	2.1	—	300	460	975	—	—	NN 3948	NN 3948 K	257	—	262	—	—	302	2	-
220	340	118	3	—	310	1190	2400	—	—	NN 4044	NN 4044 K	238	—	248	—	—	320	2.5	-
220	340	90	3	—	310	815	1480	1700	2000	NN 3044	NN 3044 K	233	—	236	—	327	313	2.5	-
220	300	80	2.1	243	—	600	1330	1700	2200	NNU 4944	NNU 4944 K	231	242	234	248	289	—	2	-

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