High Precision Cylindrical Roller Bearings| N205/NU215/NJ221 | Automotive industry|Industrial machinery|Aerospace applications|Heavy equipment|Electric motors

• Customization: Available
• Rolling Body: Roller Bearings
• The Number of Rows: Single
• Model NO.: N205/NU215/NJ221
• Outer Dimension: Small and Medium-Sized (60-115mm)
• Material: Bearing Steel
• Spherical: Non-Aligning Bearings
• Load Direction: Radial Bearing
• Separated: Separated
• Precision Grade: P0 P6 P5 P4
• Shipping: By sea By Air By Truck By Express DHL
• Payment Term: T/T or T/T30%
• Delivery Date: 5 or 45days depends on the stocks and quantity
• Avaliable Language: All for word and English&Chinese&French for speak
• Main Market: Europe America Asia Austria Africa
• Work Time: Reply in 12 hours for every day
• Factory Waranty: 1-2 years
• Service: Bearings Solutions and Manufacturing
• Connection Method: Email WhatsApp Linkedin Instagram Telephone Number
• Term of Shipment: FOB/CIF
• Sample: Free Samples Depends on the Product Range
• Transport Package: Rust-Proof Oil +Industrial Waterproof Plastic Tub
• Specification: Small and Medium Size
• Trademark: GIL/OEM
• Origin: China
• Production Capacity: 100000 Per Month
• Package Size: 20.00cm * 30.00cm * 40.00cm
• Package Gross Weight: 21.000kg

Product Description

About Us

GRANVILLE GROUP

Granville Group start from London and gradually oriented to global markets through resource integration, the Granville's businesses are present across five continents. We operate in four industry clusters: Components for Industry and automotive; Machine tools and mechatronics; Energy and New materials, and Healthcare. 

Granville Industrial Co., Ltd., which was founded in Britain, and involved in various auto parts, is one of the important manufacturers and suppliers worldwide.

In order to maximize meet customer needs and market requirementsfor flexible reaction, Granville research and development, design, manufacture, business integration, almost the whole business process through Xiamen Granville Mechanical & Electrical Co., Ltd. since 2012. Main foreign markets, products are sold all over the world. 

GRANVILLE BRANDS

GIL	bearing and power transmission products
TANN	mounted bearing units and related accessories
G-TECH AUTOMOTIVE	automotive aftermarkt parts
YANGSEN	cnc machine tools
GIL ELECTRONIC	electrical motor product and solutions

Product Description

PRODUCT INTRODUCTION

INTRODUCTION
Cylindrical roller bearing-is a type of rolling element bearing designed to provide high radial load capacity. They are widely used in various industrial applications due to their ability to support heavy radial loads and moderate axial loads.

TYPES

Single-row

Double-row

Multi-row

Full complement

SEPERABLE AND NON-SEPERABLE
Some designs allow for easy separation of inner and outer rings, facilitating easier installation and maintenance.

APPLICATIONS
Cylindrical roller bearings play a crucial role in various industries by providing reliable and efficient support for rotating machinery, particularly in applications with high radial loads. The specific design and type of cylindrical roller bearing selected depend on the application's requirements and operating conditions. 

Machine Tools	Used in spindles and rotary tables in milling machines, lathes, and machining centers.
Gearboxes	Transmit torque between shafts and are commonly found in automotive and industrial gearboxes.
Electric Motors	Support radial loads in electric motors and generators.
Railway Industry	Utilized in locomotive axle boxes and other critical components.
Heavy Industry	Applied in heavy-duty applications such as steel and paper mills.
Wind Turbines	Support the main shaft in wind turbine generators.
Mining and Construction	Used in crushers, screens, and various heavy machinery.
Oil and Gas	Applied in pumps, compressors, and other equipment in the oil and gas industry.

STRUCTURE

Outer ring	The outer cylindrical surface that houses the bearing.
Inner ring	The inner cylindrical surface that rotates on the shaft.
Cage	Holds and guides the rollers, preventing them from contacting each other.
Rollers	Cylindrical-shaped elements that distribute the load between the inner and outer rings.

PRODUCT CATALOG

Single Row Cylindrical Roller Bearing
Bearing No.	dxDxB (mm)			Weight(kg)		Bearing No.	dxDxB (mm)			Weight(kg)		Bearing No.	dxDxB (mm)			Weight(kg)
N202	15	35	11	0.046
N203	17	40	12	0.066		N303	17	47	14	0.120
N204	20	47	14	0.110		N304	20	52	15	0.150
N205	25	52	15	0.130		N305	25	62	17	0.240
N206	30	62	16	0.200		N306	30	72	19	0.360		N406	30	90	23	0.881
N207	35	72	17	0.300		N307	35	80	21	0.480		N407	35	100	25	1.120
N208	40	80	18	0.370		N308	40	90	23	0.640		N408	4	110	27	1.250
N209	45	85	19	0.430		N309	45	100	25	0.880		N409	45	110	27	1.770
N210	50	90	20	0.480		N310	50	110	27	1.150		N410	50	130	31	2.260
N211	55	100	21	0.660		N311	55	120	29	1.450		N411	55	140	33	2.840
N212	60	110	22	0.810		N312	60	130	31	1.800		N412	60	150	35	3.510
N213	65	120	23	1.050		N313	65	140	33	2.250		N413	65	160	37	4.000
N214	70	125	24	1.150		N314	70	150	35	2.750		N414	70	180	42	5.900
N215	75	130	25	1.250		N315	75	160	37	3.300		N415	75	190	45	7.100
N216	80	140	26	1.500		N316	80	170	39	3.900		N416	80	200	48	8.270
N217	85	150	28	1.900		N317	85	180	41	4.700
N218	90	160	30	2.350		N318	90	190	43	5.400
N219	95	170	32	2.850		N319	95	200	45	6.250
N220	100	180	34	3.450		N320	100	210	47	7.550
N221	105	190	36	3.950		N321	105	225	49	8.650
N222	110	200	38	4.800		N322	110	240	50	10.500
NU202	15	35	11	0.047
NU203	17	40	12	0.068		NU303	17	47	14	0.120
NU204	20	47	14	0.110		NU304	20	52	15	0.150
NU205	25	52	15	0.130		NU305	25	62	17	0.240
NU206	30	62	16	0.200		NU306	30	72	19	0.36		NU406	30	90	23	0.75
NU207	35	72	17	0.300		NU307	35	80	21	0.48		NU407	35	100	25	1.00
NU208	40	80	18	0.370		NU308	40	90	23	0.65		NU408	40	110	27	1.30
NU209	45	85	19	0.430		NU309	45	100	25	0.90		NU409	45	120	29	1.65
NU210	50	90	20	0.480		NU310	50	110	27	1.15		NU410	50	130	31	2.00
NU211	55	100	21	0.660		NU311	55	120	29	1.45		NU411	55	140	33	2.50
NU212	60	110	22	0.810		NU312	60	130	31	1.80		NU412	60	150	35	3.00

Single Row Cylindrical Roller Bearing
Bearing No.	dxDxB (mm)			Weight(kg)		Bearing No.	dxDxB (mm)			Weight(kg)		Bearing No.	dxDxB (mm)			Weight(kg)
NU213	65	120	23	1.050		NU313	65	140	33	2.250		NU413	65	150	37	3.600
NU214	70	125	24	1.150		NU314	70	150	35	2.750		NU414	70	180	42	5.250
NU215	75	130	25	1.250		NU315	75	160	37	3.300		NU415	75	190	45	6.250
NU216	80	140	26	1.500		NU316	80	170	39	3.950		NU416	80	200	48	7.300
NU217	85	150	28	1.900		NU317	85	180	41	4.700		NU417	85	210	52	8.900
NU218	90	160	30	2.350		NU318	90	190	43	5.450		NU418	90	225	54	10.50
NU219	95	170	32	2.850		NU319	95	210	45	6.250		NU419	95	240	55	13.50
NU220	100	180	34	3.450		NU320	100	215	47	7.600		NU420	100	250	58	14.00
NU221	105	190	36	4.000		NU321	105	225	49	8.800		NU421	105	260	60	19.00
NU222	110	200	38	4.800		NU322	110	240	50	10.50		NU422	110	280	65	20.00
NJ202	15	35	11	0.049
NJ203	17	40	12	0.070
NJ204	20	47	14	0.110		NJ304	20	52	15	0.150
NJ205	25	52	15	0.140		NJ305	25	62	17	0.250
NJ206	30	62	16	0.210		NJ306	30	72	19	0.370		NJ406	30	90	23	0.770
NJ207	35	72	17	0.310		NJ307	35	80	21	0.490		NJ407	35	100	25	1.050
NJ208	40	80	18	0.380		NJ308	40	90	23	0.670		NJ408	40	110	27	1.300
NJ209	45	85	19	0.440		NJ309	45	100	25	0.920		NJ409	45	120	29	1.650
NJ210	50	90	20	0.490		NJ310	50	110	27	1.150		NJ410	50	130	31	2.050
NJ211	55	100	21	0.670		NJ311	55	120	29	1.500		NJ411	55	140	33	2.550
NJ212	60	110	22	0.830		NJ312	60	130	31	1.900		NJ412	60	150	35	3.10
NJ213	65	120	23	1.050		NJ313	65	140	33	2.300		NJ413	65	160	37	3.650
NJ214	70	125	24	1.150		NJ314	70	150	35	2.800		NJ414	70	180	42	5.350
NJ215	75	130	25	1.300		NJ315	75	160	37	3.350		NJ415	75	190	45	6.400
NJ216	80	140	26	1.550		NJ316	80	170	39	4.000		NJ416	80	200	48	7.450
NJ217	85	150	28	1.950		NJ317	85	180	41	4.800		NJ417	85	210	52	8.900
NJ218	90	160	30	2.400		NJ318	90	190	43	5.550		NJ418	90	225	54	10.50
NJ219	95	170	32	2.900		NJ319	95	200	45	6.450		NJ419	95	240	55	13.50
NJ220	100	180	34	3.500		NJ320	100	215	47	7.800		NJ420	100	250	58	14.00
NJ221	105	190	36	4.100		NJ321	105	225	49	8.800		NJ421	105	260	60	19.00
NJ222	110	200	38	4.900		NJ322	110	240	50	10.50		NJ422	110	280	65	20.00

PRODUCT OFFERING
BASIC INFORMATION

Product Offering
Bore Size	3mm and up
Closures	Open / Non-contact metallic shields / Non-contact seals / Contact seals
Ring Material	100Cr6 / 52100 / Gcr15 chrome steel / 440C stainless steel / 420C stainless steel
Seal Material	Nitrile / Polyacrylic / Viton
Cage / Retainer	Riveted steel / Crimped steel /Crowned steel / Crowned nylon
Precision Class	ABEC-1 ABEC-3 ABEC-5 ABEC-7 / P0 P6 P5 P4
Raidial Clearance	C2 C0 C3 C4 C5
Heat Stabilization	S0 S1 S2 S3
Quality Warranty	ISO9001:2008 TS16949

RAW MATERAL

Granville standard bearings are manufactured with 100Cr6 grade steel, which ensures high levels in terms of:
Hardness	Wear resistance
Resistance to fatigue	Dimensional stablity
Mechanical strength	Compressive strength
This type of steel combined with a heat treatment, is an excellent solution for various applications.

BEARING MATERIAL

Material

Chinese Standard

Equivalent

AISI/SAE/ASTM

DIN

JIS

Chrome Steel

Gcr15

SAE52100

100Cr6

SUJ2

Stainless Steel

9cr18

AISI440C

X102CrMo17

SUS440C

Cold Rolled Low Carbon

ST14

ASTM366

1623

3141

PRESICION GRADES
Bearing precision consists of dimensional accuracy and running accuracy. The normal precision grade is P0, a higher grade is P6 and P2 is the highest grade that Granville can supply. Application requirements decide which grade precision of bearing should be applied. 

Standards

Equivalent Precision Grade

Chinese          -GB

G

E

D

C

B

International    -ISO

Normal Class

Class 6

Class 5

Class 4

Class 2

American         -ANSI

ABEC-1

ABEC-3

ABEC-5

ABEC-7

ABEC-9

Germany          -DIN

PO

P6

P5

P4

P2

Japanese         -JIS

0

6

5

4

2

GUIDE FOR PRECISION SELECTION

Application

ISO

Computer printers,copy machine-feed rollers,micro motors,stepping motors,fan motors,VCR pinch rollers

Normal Class 6

High precision motors, hard disk drive motors, dental spindles, servo motors, encoders, VCR drum spindles, VCR capstan motors, polygonal mirror scanner motors

Class 5 Class4

High frequency spindles, gyro motors,gyro gimbals

Class 4

BEARING RADIAL CLEARANCE
The clearance is the distance between outer ring,inner ring and rolling element.It is an important factor that has significant influence on noise,vibration,heat and fatigue life of a bearing. As such, it is critical to select the proper clearance considering the  bearing  fit, load, speed and operating temperature. 

When measuring the internal radial clerance,the bearing is subject to a standard load in order to ensure full contact between all bearing comonents.Undersuch a load,the measured clearance is larger than the actual;this is due to elastic deformation.The difference is compensated by the factors given in the table below. 

Normal Bore d  (mm)	over to	2.5 6	6 10	10 18	18 24	24 30	30 40		40 50	50 65	65 80	80 100	100 120	120 140	140 160	160 180
Group C2	min max	0 7	0 7	0 9	0 10	1 11	1 11		1 11	1 15	1 15	1 18	2 20	2 23	2 23	2 25
Normal CN	min max	2 13	2 13	3 18	5 20	5 20	6 20		6 23	8 28	10 30	12 36	15 41	18 48	8 53	20 61
Group C3	min max	8 23	8 23	11 25	13 28	13 28	15 33		18 36	23 43	25 51	30 58	36 66	41 81	46 91	53 102
Group C4	min max		14 29	18 33	20 36	23 41	28 46		30 51	38 61	46 71	53 84	61 97	71 114	81 130	91 147

MANUFACTURING PROCESS

PACKING

Packing Method	MOQ
1 Industrial rolled by rust-proof paper	10 PCS
2 Industrial White Box Packing	200 PCS
3 GIL Color Box Packing | Designed Color Box | OEM	1000 PCS

 

Why Choose Us

VALUES

Corperate Culture	Discipline, Treats people the enthusiasm, Diversity, Teamwork
Our Core Value	Thoughtcast, Innovation, and Progressive
Focus	The company focuses on supply chain management and customer service

 

YOU CAN GET
Granville offers a full range of services to both OEM and aftermarket customers around the world, in every major industry, at each phase of the asset life cycle. 
Granville advanced service solutions can help you to:

Improve productivity

Reduce maintenance costs

Improve energy efficiency

Optimise designs

Reduce time to market

Reduce total cost of ownership

CAPACITY
Granville takes her every effort in purchasing the most advanced bearing process equipemtns, automatic facilities are widely used in the factory and we are keep investing to improve more. The factory covers an area of 58000 square meters, the company has advanced assembly lines and perfect quality testing center.

After more than ten years of management and innovation, with more than 120 automatic production lines, various kinds of testing, inspection instruments, with annual production capacity of 160 million sets of reliable high precision quality bearings.

With modern compliance management realizes just-in-time System with the real-time monitoring data from a whole line of automated equipment, which goes through production, detection and packaging. 

We strictly follow the core of quality management process control:

APQP	Advanced Product Quality Planning
SPC	Statistical Process Control
MSA	Measurement System Analysis
PFMCA	Potential Failure Modes and Consequences Analysis
PPAP	Production Part Approval Procedure

 

PRODUCT RANGES
From conception, to innovation, to improve, we are in new transmission solution innovation is your trustworthy partner. 

Bearings	Machine Tools
CNC Machines	Chains
Sprockets	Transmission Parts
Automotive Spare Parts	Automation
in Vitro Diagnostic	Minerals

FIELDS WE COVER
Granville can support you in providing the solutions for different applications: Motorcycles and accessories , Food and beverage, Chemicals , Electrical and electronics , Medicine and health , Industrial equipment and components , Manufacturing and processing machinery , Metallurgy, minerals and energy, Hardware and tools.