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Double row Cylindrical Roller Bearing

Double-row cylindrical roller bearing is a type of rolling bearing with two rows of cylindrical rollers, widely used in industrial equipment requiring high rigidity and load carrying capacity. The main structure includes an inner ring, an outer ring, two columns of cylindrical rollers and a cage. Due to the double-row design, the roller is in linear contact with the raceway, which can withstand greater radial loads while providing higher rigidity and stability. Double-row cylindrical roller bearings are suitable for high-precision and high-speed operation conditions, and are often used in machine tool spindles, rolling mills, heavy machinery and other fields. Although it mainly bears radial loads, it can also bear certain axial loads. Regular lubrication and maintenance can extend its service life and ensure reliable operation of the equipment.

Search for the bearing model you need

Standard

GB,ASTM/AISI,ГОСТ,BS,JIS,NF,DIN / VDEh

Material

52100、100Cr6、SUJ2

Inner diameter (d)

25-440mm

Outer diameter (D)

40-1100mm

Mass

0.1-600kg

Brand

QIBR/OEM/Neutral

Package

QIBR/Standard Industrial Package/OEM

Applications

Spinspindle of large motors,Machine tool spindle

QIBR Model Selection

Filters

Inner diameter (d)

Outer diameter (D)

Radial dynamic load

Static load rating,radial

Weight

Width (B)

NO.	Product Number	Inner diameter (d)	Outer diameter (D)	Radial dynamic load	Static load rating,radial	Weight	Width (B)
1	NN3005MBKR	25 mm	47 mm	25.8 KN	30.0 KN	0.121 kg	16 mm
2	NN3005MB	25 mm	47 mm	25.8 KN	30.0 KN	0.121 kg	16 mm
3	NN3006MBKR	30 mm	55 mm	31.0 KN	37.0 KN	0.186 kg	19 mm
4	NN3006MB	30 mm	55 mm	31.0 KN	37.0 KN	0.186 kg	19 mm
5	NNU4924-S-K-M-SP	120 mm	165 mm	45 mm
6	NN3024-AS-K-M-SP	120 mm	180 mm	46 mm
7	NNU4926-S-K-M-SP	130 mm	180 mm	50 mm
8	NN3026-AS-K-M-SP	130 mm	200 mm	52 mm
9	NNU4928-S-K-M-SP	140 mm	190 mm	50 mm
10	NN3028-AS-K-M-SP	140 mm	210 mm	53 mm
11	NNU4930-S-K-M-SP	150 mm	210 mm	60 mm
12	NN3030-AS-K-M-SP	150 mm	225 mm	56 mm
13	NNU4932-S-K-M-SP	160 mm	220 mm	60 mm
14	NN3017-AS-K-M-SP	85 mm	130 mm	34 mm
15	NNU4918-S-K-M-SP	90 mm	125 mm	35 mm
16	NN3018-AS-K-M-SP	90 mm	140 mm	37 mm
17	NNU4919-S-K-M-SP	95 mm	130 mm	35 mm
18	NN3019-AS-K-M-SP	95 mm	145 mm	37 mm
19	NNU4920-S-K-M-SP	100 mm	140 mm	40 mm
20	NN3020-AS-K-M-SP	100 mm	150 mm	37 mm
21	NNU4921-S-K-M-SP	105 mm	145 mm	40 mm
22	NN3021-AS-K-M-SP	105 mm	160 mm	41 mm
23	NNU4922-S-K-M-SP	110 mm	150 mm	40 mm
24	NN3022-AS-K-M-SP	110 mm	170 mm	45 mm
25	NN3007-AS-K-M-SP	35 mm	62 mm	20 mm
26	NN3008-AS-K-M-SP	40 mm	68 mm	21 mm
27	NN3009-AS-K-M-SP	45 mm	75 mm	23 mm
28	NN3010-AS-K-M-SP	50 mm	80 mm	23 mm
29	NN3011-AS-K-M-SP	55 mm	90 mm	26 mm
30	NN3012-AS-K-M-SP	60 mm	95 mm	26 mm
31	NN3013-AS-K-M-SP	65 mm	100 mm	26 mm
32	NN3014-AS-K-M-SP	70 mm	110 mm	30 mm
33	NNU4914-S-K-M-SP	70 mm	110 mm	30 mm
34	NNU4915-S-K-M-SP	75 mm	105 mm	30 mm
35	NN3015-AS-K-M-SP	75 mm	115 mm	30 mm
36	NNU4916-S-K-M-SP	80 mm	110 mm	30 mm
37	NN3016-AS-K-M-SP	80 mm	125 mm	34 mm
38	NNU4917-S-K-M-SP	85 mm	120 mm	35 mm
39	NN3006-AS-K-M-SP	30 mm	55 mm	19 mm
40	NN3044-AS-K-M-SP	220 mm	340 mm	90 mm
41	NNU4948-S-K-M-SP	240 mm	320 mm	80 mm
42	NN3048-AS-K-M-SP	240 mm	360 mm	92 mm
43	NNU4952-S-K-M-SP	260 mm	360 mm	100 mm
44	NN3052-AS-K-M-SP	260 mm	400 mm	104 mm
45	NNU4956-S-K-M-SP	280 mm	380 mm	100 mm
46	NN3056-AS-K-M-SP	280 mm	420 mm	106 mm
47	NNU4960-S-K-M-SP	300 mm	420 mm	118 mm
48	NN3060-AS-K-M-SP	300 mm	460 mm	118 mm
49	NNU4964-S-K-M-SP	320 mm	440 mm	118 mm
50	NN3064-AS-K-M-SP	320 mm	480 mm	121 mm
51	NN3036-AS-K-M-SP	180 mm	280 mm	74 mm
52	NNU4938-S-K-M-SP	190 mm	260 mm	69 mm
53	NN3038-AS-K-M-SP	190 mm	290 mm	75 mm
54	NNU4940-S-K-M-SP	200 mm	280 mm	80 mm
55	NN3040-AS-K-M-SP	200 mm	310 mm	82 mm
56	NNU4944-S-K-M-SP	220 mm	300 mm	80 mm
57	NNU4988-S-K-M-SP	440 mm	600 mm	160 mm
58	NN3088-AS-K-M-SP	440 mm	650 mm	157 mm
59	NNU4992-S-K-M-SP	460 mm	620 mm	160 mm
60	NN3092-AS-K-M-SP	460 mm	680 mm	163 mm
61	NNU4996-S-K-M-SP	480 mm	650 mm	170 mm
62	NNU4968-S-K-M-SP	340 mm	460 mm	118 mm
63	NN3068-AS-K-M-SP	340 mm	520 mm	133 mm
64	NNU4972-S-K-M-SP	360 mm	480 mm	118 mm
65	NN3072-AS-K-M-SP	360 mm	540 mm	134 mm
66	NNU4976-S-K-M-SP	380 mm	520 mm	140 mm
67	NN3076-AS-K-M-SP	380 mm	560 mm	135 mm
68	NNU4980-S-K-M-SP	400 mm	540 mm	140 mm
69	NN3080-AS-K-M-SP	400 mm	600 mm	148 mm
70	NNU4984-S-K-M-SP	420 mm	560 mm	140 mm
71	NN3084-AS-K-M-SP	420 mm	620 mm	150 mm
72	NN3032-AS-K-M-SP	160 mm	240 mm	60 mm
73	NNU4934-S-K-M-SP	170 mm	230 mm	60 mm
74	NN3034-AS-K-M-SP	170 mm	260 mm	67 mm
75	NNU4936-S-K-M-SP	180 mm	250 mm	69 mm
76	NN3096-AS-K-M-SP	480 mm	700 mm	165 mm
77	NNU49/500-S-K-M-SP	500 mm	670 mm