Roller Bearing NA4905 NA Series Needle Roller Bearing NA 4905 Sizes 25x42x17mm

FOB Reference Price:Get Latest Price
$0.50 - $2.50 / Set | 1 Set/Sets (Min. Order)
Outside Diameter:
0 - 42 mm
Shipping:
Support Sea freight
Samples:
Report Suspicious Activity
Overview
Quick Details
Type:
Needle
Bore Size:
0 - 25 mm
Brand Name:
IKO SAIFAN or OEM
Model Number:
NA4905
Precision Rating:
P0 P6 P5 P4 P2
Seals Type:
Open
Number of Row:
Double Row
Place of Origin:
Shandong, China
Roller Bearing NA4905 Cage:
Brass,Steel,Nylon
Roller Bearing NA4905 Vibration:
V1 V2 V3 V4
Certificate:
ISO9001:2000
Roller Bearing NA4905 Service:
OEM Service.Design Service
Bearing Stock:
Large Stock Roller Bearing NA4905
Roller Bearing NA4905 Material:
Chrome Steel GCr15
Feature:
Long Life Roller Bearing NA4905
Roller Bearing NA4905 Precision:
P0 P6 05 P4 P2
Keywords:
Roller Bearing NA4905
Brand:
IKO SAIFAN or OEM
Supply Ability
Supply Ability:
100000 Set/Sets per Month Roller Bearing NA4905
Packaging & Delivery
Packaging Details
Roller Bearing NA4905 NA Series Needle Roller Bearing NA 4905 Sizes 25x42x17mm Package:
Individual paper box+paper carton+wooden pallet
Port
Qingdao,Shenzhen,Guangzhou

Roller Bearing NA4905 NA Series Needle Roller Bearing NA 4905 Sizes 25x42x17mm

photobank

Needle Roller Bearing Information

Brand Name

SAIFAN, IKO Bearing or according to your requirement

Item Name

Needle Roller Bearing NA4905

Bearing Sizes

25*42*17mm

Weight

0.52KG

Material

Chrome steel, Gcr15

Precision

P0,P6,P5,P4,P2

Cage Type

Brass Cage,Steel Cage,Nylon Cage

Guarantee

50000km Or One year

Delivery Detail

2-10 days upon receipt of deposit

Shipping

Express: DHL Fedex EMS  /By Sea

Application

Gearbox,Trucks,Trailers,Automobiles,Rolling Mill,Metallurgy,Plastics Machinery

Bearing Advantage

1).Excellent and high quality control

2).Prompt delivery

3).Competitive price

4).Small order accepted

5).Customers' drawing or samples accepted

6).OEM service

 

Needle Roller Bearing Photo
Needle Roller BearingNeedle Roller Bearing4Needle Roller Bearing6Needle Roller Bearing3

1.The Introduction of Needle Roller Bearings:

Needle roller bearings (needle bearing) is a cylindrical roller with a roller bearing, relative to its diameter, roller both thin and long. This is called needle roller. Despite having a smaller cross-section, has a higher load bearing capacity, equipped with a thin and long needle bearing roller (roller diameter D≤5mm, L / D≥2.5, L is the length of the roller), therefore radial structure is compact, its diameter size and load capacity and other types of bearings, minimum diameter, especially for radial mounting dimensions restricted support structure.
According to different occasions, can be used without inner ring of the bearing or needle roller and cage assembly, when the surface of the journal bearing surface and shell holes as bearing directly match the outer rolling surface, in order to ensure the load capacity and operating performance and have the same ring bearing, shaft or housing bore raceway surface hardness, machining accuracy and surface quality should be similar roller bearing rings. Such bearings can only bear radial load.

2.The Advantage of Taper Roller Bearings:

With thin and long needle bearing roller (roller diameter D≤5mm, L / D≥2.5, L is the length of the roller), therefore radial structure is compact, its diameter size and load capacity and other types of bearings minimum diameter, especially for radial bearing installation dimensions restricted results. According to different occasions, can be used without inner ring of the bearing or needle roller and cage assembly, when the surface of the journal bearing surface and shell holes as bearing directly match the outer rolling surface, in order to ensure the load capacity and operating performance and have the same ring bearing, shaft or housing bore raceway surface hardness, machining accuracy and surface quality should be similar roller bearing rings. Such bearings can only bear radial load.

3:The classification of Taper Roller Bearings:

1. K, Radial needle roller and cage assemblies
2. NA, NKI-type needle roller bearings
3. RNA, NK-type needle roller bearings without inner ring
4. HK drawn cup needle roller bearings
5. BK Drawn cup needle roller bearings

4:Related Taper Roller Bearing Catalogue

Needle roller Bearings

Bearing Designation

Boundary Dimensions

Basic Load Ratings

Limiting Speed

HK

Fw

D

C

Cr Dynamic

Cor Static

Oil

mm

mm

mm

Nm

Nm

HK1210

12

16

10

4150

5800

19000

HK1212

12

18

12

3800

5100

15000

HK1312

13

19

12

6200

7100

17000

HK1412

14

20

12

6800

7500

14000

HK1416

14

20

16

7300

9000

14000

HK1512

15

21

12

7000

8400

14000

HK1514

15

21

14

8500

10400

13000

HK1515

15

21

15

9100

11400

13000

HK1522

15

21

22

10400

16500

14000

HK1612

16

22

12

7100

9200

14000

HK1614

16

22

14

8800

9900

12000

HK1616

16

22

16

10100

14300

14000

HK1622

16

22

22

11100

17400

14000

HK1712

17

23

12

6900

9300

13000

HK1714

17

23

14

6800

10200

10000

5:SAIFAN Bearing Category:
SaiFan Advantage

 SOLUTION

– At the beginning, we will have a communication with our customers on their demand, then our  engineers will work out an optimum solution based on the customers’ demand and condition.
 PRODUCTION

– Running in accordance with ISO 9001 quality system, the advanced production equipments,  sophisticated processing technology, strict quality management system, skilled workers and innovative technical team, make our bearings in continuous quality improvement & technology development.
 QUALITY CONTROL (Q/C)

- In accordance with ISO standards, we have professional Q/C staff, precision testing instruments and internal inspection system, the quality control is implemented in every process from material receiving to products packaging to ensure our bearings quality.
 PACKAGE

– Standardized export packing and environment-protected packing material are used for our bearings, the custom boxes, labels, barcodes etc. can also be provided according to our customer’s request.
 LOGISTIC

 – Normally, our bearings will be sent to the customers by ocean transportation due to its heavy weight, airfreight, express is also available if our customers need.
 WARRANTY

– We warrant our bearings to be free from defects in material and workmanship for a 12 months period from the shipping date, this warranty is voided by non-recommended use, improper installation or physical damage.

SAIFAN 3.jpg 
About US

2.jpg

High Quality Bearings, Choose Saifan.
Jinan Saifan Bearing Co., Ltd is a professional bearing manufacture located in Jinan, Shandong.

We are established in year 2005 and we have 10 years experience in bearing manufacture.
We mainly produce wheel hub bearings, ball bearings, roller bearings etc.

 

Our Workshop

WORKSHOP

 

Production
Production
Saifan Exhibition 
 1
Express & Payment
EXPRESS AND PAYMENTS.jpg
FAQ

 

Q:What’s your after-sales service and warranty?

A: We promise to bear the following responsibility when defective product is found:

1.12 months warranty from the first day of receiving goods;

2. Replacements would be sent with goods of your next order;

3. Refund for defective products if customers require.

 

Q:Do you accept ODM&OEM orders?

A: Yes, we provide ODM&OEM services to worldwide customers, we are able to customize housings in different styles, and sizes in different brands, we also customize circuit board & packaging box as per your requirements.

 

Q:What’s the MOQ?

A: MOQ is 10pcs for standardized products; for customized products, MOQ should be negotiated in advance. There is no MOQ for sample orders.

 

Q:How long is the lead time?

A: The lead time for sample orders is 3-5 days, for bulk orders is 5-15 days.

 

Q:Do you offer free samples?

A: Yes we offer free samples to distributors and wholesalers, however customers should bear freight.

We DO NOT offer free samples to end users.

 

Q:How to place orders?

A: 1. Email us the model, brand and quantity, consignee information, shipping way and payment terms;

2. Proforma Invoice made and sent to you;

3. Complete Payment after confirming the PI;

4. Confirm Payment and arrange production.

 

CONTACT US

Jinan SaiFan Bearing Co,.Ltd

Add: Business Center,No.88 Dikou Rd,
Tian Qiao Dist, Jinan, China.
Tel:86-0531-82637507
Skype: saifan001
http://saifangroup.en.alibaba.com
http://saifan-group.com

Roller Bearing NA4905 NA Series Needle Roller Bearing NA 4905 Sizes 25x42x17mm

Roller Bearing NA4905 NA Series Needle Roller Bearing NA 4905 Sizes 25x42x17mm

Roller Bearing NA4905 NA Series Needle Roller Bearing NA 4905 Sizes 25x42x17mm