/ Double row cylindrical roller bearings

double row cylindrical roller bearing

1.Product Introduction: Double-row structure, with radial load capacity 1.8-2.2 times that of single-row bearings, suitable for medium-heavy load scenarios.
2.Structure Type: Outer ring with double ribs, separable inner ring, double-row rollers + cage, intermediate spacer ring, open type/sealed type.
3.Dimension Range: Inner diameter: 50-800mm, Outer diameter: 100-1200mm, Width: 40-200mm
4.Material: Inner ring/Outer ring/Spacer ring/Rollers: GCr15/GCr15SiMn/20Cr2Ni4A; Cage: Stamped steel/brass
5.Accuracy: Class P0/P6, Class P5 for precision heavy-load models
6.Application Fields: Heavy-duty motors, machine tool spindles (heavy-load end), mining machinery spindles, port cranes
7.Key Inspection Items: Clearance consistency of double-row rollers, radial load capacity, spacer ring parallelism

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Product Description

Data Sheet

Double Row Cylindrical Roller Bearings for Extreme Load & High-Temperature Applications

When your machinery faces relentless radial loads, extreme temperatures, or harsh industrial environments, double row cylindrical roller bearings deliver unmatched performance. Engineered with two parallel rows of cylindrical rollers, these bearings provide 1.8–2.2x higher radial load capacity than single-row designs, making them ideal for steel mills, mining crushers, and heavy-duty port cranes. At LUOYANG INNO BEARING, we specialize in custom solutions up to φ5000mm, combining 30+ years of expertise with fast-track delivery in 15–20 days.

product-564-541

Why Choose Us?

✅ Built for Demanding Conditions

Withstand 150°C+ temperatures (common in steel rolling mills) and radial loads up to 1,200kN through advanced heat treatment and high-purity steel materials.
Optional sand-resistant seals protect against contamination in mining and quarrying applications.

✅ Precision You Can Trust

Achieve P4-level accuracy (ISO 492) and noise levels below 35dB for medical equipment or high-speed machinery.
Rigorous quality checks ensure consistent roller spacing and spacer ring parallelism.

✅ Fast Customization & Delivery

Modify inner/outer diameters (50–2500mm), widths (40–200mm), or lubrication systems to fit legacy equipment.
1,000+ standard models ship within 48 hours; non-standard orders take 70% less time than industry averages.

Technical Specifications

Parameter	Specification
Inner Diameter	50mm – 2500mm
Outer Diameter	Up to 5000mm
Radial Load Capacity	Up to 1,200kN
Material	GCr15, GCr15SiMn, or custom alloy steels
Precision Grades	P0, P5, P6, P4 (upon request)
Operating Temp	-30°C to +150°C (higher with coatings)

Where Double Row Cylindrical Roller Bearings Excel?

Metallurgy: Reliable performance in hot rolling mills with 150°C+ heat resistance.
Mining: Impact-resistant designs for crushers and vibrating screens.
Port Machinery: Low-friction operation for crane slewing rings.
Energy: Extended lifespan in wind turbine gearboxes.

Quality Assurance

Every double row cylindrical roller bearing undergoes:

1. Material Testing: Spectrogram analysis to verify steel purity.

2. In-Process Checks: Laser measurements for dimensional accuracy.

3. Final Validation: 100% testing for vibration, noise, and load capacity.

Certified to ISO 9001, CE, and ATEX standards.

Global Delivery Network

Standard Bearings: Shipped within 48 hours from our stock.
Custom Sizes: φ3000mm bearings delivered in 15 days via modular production.

Customization Made Simple

1. Share your operational requirements (load, speed, environment).

2. Receive a 3D model and technical report in 72 hours.

3. Approve the prototype after performance testing.

4. Production starts with weekly updates.

Lifetime Support for Peak Performance

Free Installation Guidance: On-site engineers or video calls.
IoT Monitoring: Real-time bearing health tracking to prevent unplanned downtime.
24/7 Emergency Support: Replacement bearings shipped within 12 hours.

FAQs

1. How do your bearings handle 150°C+ temperatures in steel mills?

We use nitrided steel cages and high-purity alloys that resist thermal expansion, ensuring stability under extreme heat.

2. Can you make bearings larger than φ5000mm?

Yes! Our in-house R&D team designs mega-sized bearings for mining crushers, with impact-resistant rollers.

3. What ensures consistent quality in heavy-load scenarios?

Triple-stage inspections verify material integrity, dimensional accuracy, and performance under 150% overloads.

4. Do you offer IoT-enabled maintenance?

Absolutely. Our smart sensors monitor vibration and temperature, alerting you to potential issues before failure.

Contact Us

Need a Double Row Cylindrical Roller Bearing That Outperforms?

[Upload Your Requirements] or ✉️ Email sales@inno-bearing.com for a free solution review within 24 hours!

Optimize your machinery with bearings engineered for endurance. Trust LUOYANG INNO BEARING — where innovation meets reliability.

d 40～105mm
Overall Dimensions				Rated Load		Limiting Rotational Speed		Bearing Designation		Shaft Diameter	Other Dimensions		Mounting Dimensions					Weight
d	D	B	rmin	Dynamic Load C	Static Load Co	Grease	Oil	Current Model	Original Model	Shaft Diameter	F	E	damin	damax	Damax	Damin	ramax	Weight
mm				kN		r/min				mm	mm		mm					kg
40	68	37	0.6	82.1	121	2000		NNF5008-2LSNV		40	47	61	44	50	65	63	0.6	0.535
40	68	38	0.6	100	142	2000		NNF5008DA.V.C4.S3		40	46	62	44	50	65	63	0.6	0.524
50	80	23	1	53	73.2	8000	9400	NN 3010K	3182110	50		72.5	57		75	74	1	0.421
55	90	45	0.6	144	228	1500		NNF5011-2LS		55	635	81.5	60	67	85	83	0.6	1.16
60	95	26	1.1	70.2	105	8500	10000	NN3012K		60		85.5	66.5		88.5	87	1	0.707
60	95	26	1.1	70.2	105	8500	10000	NN3012		60		85.5	66.5		88.5	87	1	0.708
70	110	30	1.1	95.8	145	7000	8500	NN3014K		70		100	76.5		104	101		0.963
70	110	30	1.1	95.8	145	7000	8500	NN 3014 K/P4W33		70		100	76.5		104	101	1	1.04
75	115	30	1.1	101	158	6700	8000	NN3015K		75		105	81.5		109	106	1	1.12
75	115	30	1.1	101	158	6700	8000	NN3015		75		105	81.5		109	106	1	1.13
80	125	34	1.1	123	194	6300	7500	NN3016K		80		113	86.5		119	114	1	154
	125	34	1.1	123	194	6300	7500	NN3016		80		113	86.5		119	114	1	1.6
	125	34	1.1	123	194	6300	7500	NN 3016 K/P4W33		80		113	86.5		119	114	1	1.5
85	130	34	1.1	122	195	6000	7000	NN3017K		85		118	91.5		124	119	1	1.59
90	140	37	1.5	142	226	5600	6700	NN3018K		90		127	98		132	129	1.5	2.12
90	140	66	0.6	297	560	900		NNF5018-2LSNV		90	104	128	96	106	135	130	0.6	3.24
100	150	37	1.5	161	274	5300	6000	NN 3020K		100		137	108		142	139	1.5	2.31
100	150	66	1.5	320	585	850		NNF5020-2LSV/YA1		100	113	139	105	117	146	141	1.5	3.98
105	160	41	2	201	328	4800	5600	NN 3021K		105		146	115		150	148	2	2.99
d 110～220mm
Overall Dimensions				Rated Load		Limiting Rotational Speed		Bearing Designation		Shaft Diameter	Other Dimensions		Mounting Dimensions					Weight
d	D	B	rmin	Dynamic Load C	Static Load Co	Grease	Oil	Current Model	Original Model	Shaft Diameter	F	E	damin	damax	Damax	Damin	ramax	Weight
mm				kN		r/min				mm	mm		mm					kg
110	200	69.8	2.1	372	592	3100	3900	NN 3222	3282222	110	179		139		182	180	2	9.52
120	180	46	2	235	397	4300	5000	NN3024K		120	165		130		170	167	2	3.99
130	200	52	2	294	498	4000	4500	NN3026K		130	182		140		190	183	2	5.76
130	200	52	2	294	498	4000	4500	NN3026K/W33		130	182		140		190	183	2	5.76
140	210	53	2	308	539	3800	4300	NN 3028K		140	192		150		200	194	2	6.43
140	210	53	2	308	539	3800	4300	NN 3028		140	192		150		200	194	2	6.56
150	225	56	2.1	335	587	3600	4000	NN3030K		150	206		161		214	208	2	7.87
160	240	60	2.1	446	776	3400	3800	NN3032K		160	223		171		229	221	2	9.25
160	240	60	2.1	446	776	3400	3800	NN3032K/W33		160	223		171		229	221	2	9.18
170	260	67	2.1	450	805	3000	3400	NN3034K		170	236		180		249	238	2	12.8
180	260	84	2.1	567	1130	2000	2600	NNU4936X3/W33		180	202		190		249	238	2	15
180	270	120	2.1	815	1570	2000	2600	NNU4136X3		180	202		190	199	259	248	2	24
190	260	69	2	485	1060	1900	2400	NNU4938K	4382938	190	211		200	209	250	246	2	10.96
200	280	80	2.1	480	1040	1900	2400	NN4940K	4182940	200	259		211	222	269	264	2	14.1
	280	80	2.1	480	1040	1900	2400	NN4940K/W33	4182940Y	200	259		211	222	269	264	2	14.1
	310	82	2.1	653	1170	2400	2800	NN3040K		200	282		211		299	285	2	22.6
	310	82	2.1	653	1170	2400	2800	NN3040K/W33		200	282		211		299	285	2	22.6
220	340	90	3	815	1480	2200	2600	NN3044		220	310		230		327	313	2	30.1
	340	90	3	815	1480	2200	2600	NN3044K/W33		220	310		230		327	313	2	29.1
	340	90	3	815	1480	2200	2600	NNU3044K/W33		220	254		230		327	313	2	29.2