/ Single row cylindrical roller bearings

NU type cylindrical roller bearing

1.Product Introduction: With separable inner ring, able to bear radial loads, suitable for shaft systems that require frequent disassembly, and having excellent high-speed performance.
2.Structure Type: The outer ring has double ribs, the inner ring is separable, with a single row of rollers + cage, and it is open - type (dust cover is optional).
3.Size Range: Inner diameter 20 - 500mm, outer diameter 47 - 1000mm, width 14 - 200mm.
4.Material: Inner ring / outer ring / rollers: GCr15/GCR15SIMN/20Cr2Ni4A, cage: stamped steel / brass.
5.Precision: P0/P6 level, high-speed version is P5 level.
6.Application Fields: Electric motors, machine tool spindles, reducers, automobile gearboxes.
7.Key Inspection Items: Radial clearance, roller parallelism, dimensional accuracy.

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Product Description

Data Sheet

NU Type Cylindrical Roller Bearings | High-Load Capacity, Customizable Solutions, Fast Global Delivery

When your heavy-duty machinery demands unmatched radial load handling and durability, NU type cylindrical roller bearings stand as the proven solution. At LUOYANG INNO BEARING CO., LTD, we combine 30+ years of precision engineering with industry-specific customization to deliver bearings that thrive in extreme conditions—from scorching steel mills to high-impact port cranes. With 1,000+ standard models ready to ship in 48 hours and tailored designs for unique dimensions (up to φ5000mm), we ensure your equipment runs smoother, longer, and with minimal downtime.

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Why Choose Our NU Type Cylindrical Roller Bearings?

30+ Years of Precision Engineering

Specializing in cylindrical roller bearings since 1993, we master both standard and custom NU type cylindrical roller bearings. Our in-house production and global supply chain let us deliver bearings with outer diameters up to φ5000mm, backed by ISO-certified quality control.

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Built for Extreme Conditions

High-Temperature Resilience: Graphite-lubricated designs withstand 500°C in metallurgy mills.
Heavy-Load Mastery: Reinforced cages handle 30% higher axial loads in mining crushers.
Contamination Resistance: Zinc-nickel coatings protect port machinery in salty, humid environments.

Industry-Optimized Performance

Metallurgy: 20,000+ hour lifespan under 150°C and extreme radial loads.
Port Machinery: 10,000+ hours in high-frequency crane trolleys (15kN+ radial load capacity).
Medical Imaging: Ultra-low noise (<35dB) designs for MRI gearboxes.

Technical Specifications

Parameter	Details
Inner Diameter	20mm – 500mm (standard), up to φ3000mm (custom)
Outer Diameter	47mm – 1000mm (standard), up to φ5000mm (custom)
Materials	GCr15/SAE 52100 steel, brass/stamped steel cages, ceramic hybrids (optional)
Precision	P0/P6 (standard), P4/P5 for high-speed applications
Load Capacity	Dynamic: Up to 500kN+; Static: Customized for axial/radial combos
Temperature	Standard: -30°C to 120°C; Custom: Up to 150°C

Quality Assured, Every Time

Every NU type cylindrical roller bearing undergoes rigorous checks:

1. Material Screening: Traceable high-purity steel with ≥58 HRC hardness.

2. 3-Stage Inspections: Dimensional accuracy, radial clearance (≤5μm), and roller parallelism.

3. 12+ Performance Tests: Vibration analysis, lifespan simulations, and ISO 9001/TS 16925 compliance.

Our 99.9% qualification rate ensures reliability in critical setups like rolling mill gearboxes or mining conveyors.

Flexible Ordering & Fast Global Delivery

Standard Bearings: 1,000+ models in stock, shipped within 48 hours.
Custom Designs: Submit drawings for a quote; 20-30 days lead time (30% faster via modular production).
Global Reach: DDP/DAP shipping via FedEx/DHL, with regional warehouses in EU, Asia, and MENA.

Lifetime Support, From Installation to Optimization

Pre-Sales: Free CAD models and bearing selection guidance.
Post-Sales: 24/7 engineering support, IoT-driven predictive maintenance plans, and 5-year optional warranty.
Retrofitting: On-site adaptation for legacy equipment with non-standard dimensions.

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FAQ

1. How quickly can you customize NU bearings for φ2000mm+ applications?

Our modular production system cuts lead times by 30%, delivering φ3000mm bearings in 15-20 days without quality compromises.

2. What material grades enhance load capacity in heavy machinery?

We use SAE 52100 steel with vacuum degassing for 30% higher axial load ratings, ideal for crane systems.

3. Do you offer noise-reduced NU bearings for medical devices?

Yes! Our precision-ground rollers and brass cages achieve <35dB operation, compliant with ISO 13485 for MRI equipment.

4. How do your bearings handle contaminated environments like cement plants?

Sealed NU designs with triple-lip contact seals block 99% of dust/particles, extending lifespan by 40%.

5. Can you provide IoT-enabled monitoring for NU bearings?

Absolutely. Our smart sensors track temperature, vibration, and load in real time, predicting failures 3-6 months in advance.

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Boost Your Machinery’s Performance Today!

📩 Email sales@inno-bearing.com for a quote, bulk discounts, or technical specs.

🔧 Need urgent support? Chat with our engineers 24/7.

d 17～30mm
Overall Dimensions					Rated Load		Limiting Rotational Speed		Bearing Designation		Shaft Diameter	Other Dimensions				Mounting Dimensions					Weight
d	D	B	rmin	r1min	Dynamic Load C	Static Load C₀	Grease	Oil	Current Model	Original Model	Shaft Diameter	d1	D1	E	F	damin	Damax	Dbmin	ramax	rbmax	Weight
mm					kN		r/min				mm	mm				mm					kg
17	47	14	1	0.6	19.2	16.9	14000	17000	NU 303M	32303H	17		36.8		27	21.2	41		1	0.6	0.15
18	52	15	0.6	0.6	30.8	25.4	10000	14000	NB3/18JR/YA4	822903	18				25	23	47		0.6	0.6	0.18
20	47	14	1	0.6	23.8	23.9	13000	16000	N 204	2204	20	30.4		40				43	1	0.6	0.11
	47	14	1	0.6	25.1	25.2	13000	16000	NU 204M	32204H	20		36.8		27	24	42		1	0.6	0.11
	47	14	1	0.6	25.1	25.2	13000	16000	NJ 204M	42204H	20	30	36.8		27	24	42		1	0.6	0.14
25	52	15	1	0.6	28.8	27.1	11000	14000	NU 205M	32205H	25		41.8		32	29	47		I	0.6	0.17
	52	15	1	0.6	30.6	29.3	10500	13500	NJ205EF¹		25	34.7	43.5		31.5	29	47		1	0.6	0.15
	52	15	1	0.6	30.6	29.3	11000	14000	NJ205ETNI	42205EA	25	34.7	43.5		31.5	29	47		1	0.6	0.14
	52	15	1	0.6	28.8	27.1	11000	14000	NJ 205EM		25	34.7	43.5		31.5	29	47		1	0.6	0.15
	52	15	1	0.6	28.8	27.1	11000	14000	NU 205EM		25		43.5		31.5	29	47		1	0.6	0.15
	52	18	1	0.6	37.8	40.2	2200	4500	NU 2205V/C9	3-258	25		41.1		31.1	29	47		1	0.6	0.18
	62	17	1.1	1.1	36.9	32	9500	12000	NJ305E	42305E	25	38.1	50.4		34	31	55		1	1	0.26
	62	17	1.1	1.1	36.6	26.6	9500	12000	NJ305		25	38.6	48.7		35	31	55		1	1	0.26
	62	17	1.1	1.1	38	37	9500	12000	NJ305ETN1	42305EA	25	38.1	56.4		34	31	55		1	1	0.25
	62	17	1.1	1.1	38.2	34.7	2500	5000	NCL305V	102305	25	39		53		31		55	1	1	0.25
	62	17	1.1	1.1	38	37	9500	12000	NU 305M		25		50.4		34	32	55		1	1	0.27
	62	24	1.1	1.1	50.5	49.5	9000	11000	NJ2305M	42605HY	25	39	48.7		35	32	55		1	1	0.45
	62	24	1.1	1.1	58.4	62.2	2200	4500	NCL2305V	102605	25	39		53		32		52	1	1	0.35
27	58	18	1.1	1.1	50	55	11000	14000	NU 6/27EV		27	47.6			35.53	33	53		1	1	0.231
30	62	16	1	0.6	34.3	21.7	9500	12000	N206E	2206E	30	41.3		55.5		35		56	1	0.6	0.21
	62	16	1	0.6	34.3	21.7	9500	12000	NJ 206E	42206E	30	41.3	52.3		37.5	35	57		1	0.6	0.21
	62	16	1	0.6	34.3	21.7	9500	12000	NU 206E	32206E	30		52.3		37.5	35	57		1	0.6	0.21
	62	16	1	0.6	26.5	25.3	9500	12000	N206	2206	30	42.1		53.5				56	1	0.6	0.22
d 30～40mm
Overall Dimensions					Rated Load		Limiting Rotational Speed		Bearing Designation		Shaft Diameter	Other Dimensions				Mounting Dimensions					Weight
d	D	B	rmin	r1min	Dynamic Load C	Static Load C₀	Grease	Oil	Current Model	Original Model	Shaft Diameter	d1	D1	E	F	damin	Damax	Dbmin	ramax	rbmax	Weight
mm					kN		r/min				mm	mm				mm					kg
30	62	16	1	0.6	26.5	25.3	9500	12000	NU 206M	32206H1	30		49.9		38.5	34	57		1	0.6	0.24
	62	16	1	0.6	32.9	29.7	9500	12000	NU206EM		30		52.3		37.5	34	57		1	0.6	0.22
	62	16	1	0.6	26.5	25.3	9500	12000	NU 206Q1PS	32206Q1	30		49.9		38.5	34	57		1	0.6	0.24
	62	16	1	0.6	26.5	25.3	9500	12000	NJ 206M	42206H1	30	418	49.9		38.5	34	57		1	0.6	0.25
	62	16	1	0.6	36.1	34.7	10810	13620	N206ETN1	2206EA	30	41.3		55.5				57	1	0.6	0.21
	62	16	1	0.6	36.1	34.7	10810	13620	NU 206ETN1	32206EA	30		52.3		37.5	34	57		1	0.6	0.21
	62	16	1	0.6	36.1	34.7	10810	13620	NJ 206ETN1	42206EA	30	41.3	52.3		37.5	34	57		1	0.6	0.21
	62	16	1	1	36.1	34.7	9000	11500	NJ 206EF1		30	41.3	52.3		37.5	34	57		1	0.6	0.31
	72	19	1.1	1.1	51.2	48	9000	11000	NF306E	12306E	30	44.9	589	62.5		37	65		1	1	0.38
	72	19	1.1	1.1	51.2	48	9000	11000	NU 306EM		30		58		40.5	37	65		1	1	0.4
35	72	17	1.1	0.6	45.3	43.8	8500	10000	NJ 207EM		35	48	60		44	39	65		1	0.6	0.34
	72	17	1.1	0.6	45.3	43.8	8500	10000	NU 207EM		35		60		44	39	65		1	0.6	0.33
	72	17	1.1	0.6	49.2	51.9	9340	11770	N207ETN1	2207EA	35	48.3		64		42		67.8	1.1	0.6	0.3
	80	21	1.5	1.1	50.9	48.5	7000	8500	NU 307M	32307H	35		63.5		46.2	43	72		1.5	1	0.55
	80	21	1.5	1.1	50.9	48.5	7000	8500	NF307	12307	35	51.5	64	68.2		43		72	1.5	1	0.51
	80	21	15	1.1	50.9	48.5	7000	8500	NJ307	42307	35	56.8	63.5		46.2	43	72		1.5	1	0.51
	80	21	1.5	1.1	59.1	39.2	8000	9500	NJ307E	42307E	35	51.	66.3		46.2	43	72		1.5	1	0.48
	80	21	1.5	1.1	70.6	66.2	7000	8500	NJ307ETN1	42307EA	35	51.1	66.3		46.2	43	72		1.5	1	0.48
	80	21	1.5	1.1	70.6	66.2	7000	8500	NJ307EF1		35	51.1	66.3		46.2	43	72		1.5	1	0.68
	80	21	1.5	11	80.2	83.3	2500	3050	NJ307ENV/C9		35	52.2	64.4		46.2	44	72		1.5	1	0.53
	80	21	1.5	1.1	80.2	83.3	2500	3050	NJ307EV		35	52.2	64.4		46.2	44	72		1.5	1	0.54
	80	31	1.5	1.1	64.8	66.1	7000	8500	NJ 2307	42607H	35	50.8	63.5		46.2	42	72		1.5	1	0.88
	80	31	1.5	1.1	92.2	99.3	7000	8500	NJ2307EF1		35	55.1	66.3		46.2	42	72		1.5	1	0.94
	80	31	1.5	1.1	92.2	99.3	7000	8500	NU2307EF1		35		66.3		46.2	42	72		1.1	1	0.92
	100	25	1.5	1.5	77.5	72.5	6700	8000	NJ407M		35	59	78.1		53	44	92		1.5	1.5	1.14
40	80	18	1.1	1.1	49.1	31.9	7500	9000	NJ208E	42208E	40	54.2	67.6		49.5	47	73		1	1	0.4
40	80	18	1.1	1.1	49.1	31.9	7500	9000	NF208E	12208E	40	54.2	676	71.5		47		72	1	1	0.39