4*21.8 NRA CYLINDRICAL ROLLERS

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4*21.8

Bore Diameter:4 mm

Outside Diameter:21.8 mm

Weight:0.00214 kg

The 4*21.8 bearing is a needle rollers with an inner diameter of 4 mm , an outer diameter of 21.8 mm, It typically uses ABEC1 ABEC3 ABEC5 ABEC7 ABEC9 grade precision tolerances and needles ,cylindrical rollers,rollers type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

4 mm

Outside Diameter:

21.8 mm

Weight:

0.00214 KG

Specifications:

Structure:

needle rollers

Precision Rating:

ABEC1 ABEC3 ABEC5 ABEC7 ABEC9

Bearing Material:

CHROME STEEL AISI52100,AISI420C,AISI304

Seals Type:

needles ,cylindrical rollers,rollers

Transaction Information:

Payment term:

30% Deposite,70% before B/L copy

Delivery time:

base on qty required

Detailed description

4*21.8 NRA CYLINDRICAL ROLLERS

As the ancient capital of the thirteen dynasties,Xi’an attracts many famous entrepreneurs of home and abroad to invest and is also the bridgehead of the western development. We adopt German equipment and technologies to produce kinds of bearings.

The Size of cylindrical roller produced by ours: Diameter:3~80mm,Length:3.5~110mm,There are G2,G3,G5 grade;Its material is from Gcr15 steel and hardness is HRC60~64 and surface roughness Ra is not exceeding 0.2. At the same time we have mass production of piston pin,crank pin and other pins.The piston pin and crank pin are usually made from 20CrMo,other pins are usually made from bearing steel with accuracy,surface hardness and roughness according to the industry standard or the requirements of customers. Also welcome for non-standard roller needles requirements

Now,I briefly introduce our products list as following:

Needle Roller
Spec (mm)	Spec (mm)	Spec (mm)
1*5.8	3*23.8	6*6
1*6.8	3*25.8	6*8
1*7.8	3*27.8	6*17.8
1*9.8	3*29.8	6*21.8
1.5*5.8	3.5*11.8	6*23.8
1.5*6.8	3.5*13.8	6*25.8
1.5*7.8	3.5*15.8	6*39.8
1.5*9.8	3.5*17.8	7*7
1.5*11.8	3.5*19.8	7*10
1.5*13.8	3.5*21.8	8*8
2*6.3	3.5*23.8	8*12
2*7.8	3.5*25.8	9*9
2*9.8	3.5*27.8	10*10
2*11.8	3.5*29.8	11*11
2*13.8	3.5*34.8	11*15
2*15.8	4*15.8	12*12
2*17.8	4*17.8	12*18
2*19.8	4*19.8	14*14
2*21.8	4*21.8	14*20
2.5*7.8	4*23.8	15*15
2.5*9.8	4*25.8	16*16
2.5*11.8	4*27.8	17*17
2.5*13.8	4*29.8	18*18
2.5*15.8	4*34.8	19*19
2.5*17.8	4*39.8	20*20
2.5*19.8	5*19.8	20*30
2.5*21.8	5*21.8	21*30
2.5*23.8	5*23.8	22*22
3*9.8	5*25.8	24*36
3*11.8	5*27.8	25*25
3*13.8	5*29.8	25*36
3*15.8	5*34.8	26*26
3*17.8	5*39.8	28*28
3*19.8	5*49.8	30*30
3*21.8	5.5*8	30*48

If you have any needs,pls contact me immediately !

Awaiting for your email !

Thks,

BearingSara

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How can you buy 4*21.8 NRA CYLINDRICAL ROLLERS on the Internet?
High quality 4*21.8 ( 0.00214 kg Mass, ID: 4 mm OD: 21.8 mm , ABEC1 ABEC3 ABEC5 ABEC7 ABEC9 Accuracy Class , CHROME STEEL AISI52100,AISI420C,AISI304 Material ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 4*21.8. then click the button " Send " The web site will make your purchasing information sent to the supplier's mailbox, who will come to contact you upon they get your information at the first time.

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