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)
240	360	118	3	274	—	1240	2600	—	—	NNU 4048	—	259	—	—	281	—	—	2.5	42.7
240	360	118	3	—	330	1240	2600	—	—	NN 4048	NN 4048 K	259	—	269	—	—	340	2.5	39.3
240	360	92	3	274	—	855	1600	—	—	NNU 3048	NNU 3048 K	253	259	256	280	347	—	2.5	30.8
240	360	92	3	—	330	855	1600	1500	1800	NN 3048	NN 3048 K	253	—	256	—	347	334	2.5	32.7
240	320	80	2.1	263	—	625	1450	1600	2000	NNU 4948	NNU 4948 K	251	262	254	269	309	—	2	18
240	320	80	2.1	—	300	625	1450	—	—	NN 4948	NN 4948 K	251	—	254	—	309	302	2	17.9
240	320	60	2.1	—	300	460	975	—	—	NN 3948	NN 3948 K	257	—	262	—	—	302	2	12.2
240	300	60	1.1	—	283	405	1030	—	—	NN 4848	—	252	—	—	—	—	287	1	9.77
220	370	120	4	263	—	1050	1810	—	—	NNU 3144	—	241	—	—	268	—	—	3	52.3
220	370	120	4	—	331	1050	1810	—	—	NN 3144	—	241	—	—	—	—	346	3	51.9
220	340	118	3	—	310	1190	2400	—	—	NN 4044	NN 4044 K	238	—	248	—	—	320	2.5	39.8
220	340	90	3	254	—	815	1480	—	—	NNU 3044	—	233	238	236	259	327	—	2.5	30
220	340	90	3	—	310	815	1480	1700	2000	NN 3044	NN 3044 K	233	—	236	—	327	313	2.5	29.6
220	300	80	2.1	243	—	600	1330	1700	2200	NNU 4944	NNU 4944 K	231	242	234	248	289	—	2	16.6
220	300	80	2.1	—	279	600	1330	—	—	NN 4944	NN 4944 K	231	—	234	—	289	283	2	16.6
220	300	60	2.1	—	279	440	895	—	—	NN 3944	NN 3944 K	236	—	241	—	—	283	2	11.4
200	310	109	2.1	—	282	890	1730	—	—	NN 4040	NN 4040 K	216	—	225	—	—	293	2	30.4
200	310	82	2.1	232	—	655	1170	—	—	NNU 3040	NNU 3040 K	211	216	214	237	299	—	2	22.9
200	310	82	2.1	—	282	655	1170	1800	2200	NN 3040	NN 3040 K	211	—	214	—	299	285	2	22.7
200	280	80	2.1	223	—	570	1220	1900	2400	NNU 4940	NNU 4940 K	211	222	214	228	269	—	2	15.3

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