Jinan Kelunte Bearing Co., Ltd.
Main products:Roller Bearing,Ball Bearing,Pillow Block Bearing,Import Bearing,Ceramic Bearing
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Contact Us
  • Contact Person : Mr. liu jolay
  • Company Name : Jinan Kelunte Bearing Co., Ltd.
  • Tel : 86-531-55509796
  • Fax : 86-531-68803368
  • Address : Shandong,jinan,No.160-31 Jiluo Road Jinan
  • Country/Region : China
  • Zip : 250031

One Way Clutch KOYO Needle Roller Bearing NAV4008

One Way Clutch KOYO Needle Roller Bearing NAV4008
Product Detailed
Needle Roller Bearing NAV4008 1.High quality,low friction 2.Japanese standard 3.Widely used 4.High load capacity

One Way Clutch KOYO Needle Roller Bearing NAV4008 

Specifications

Type name:  Needle Roller Bearing  NAV4008

Brand :ASAHI, HRB, IKO, KOYO

Bore Size:40mm 

Outside Diameter:68mm 

Thickness:18mm

Precision Rating:P0 P6 P5 P4  

Seals Type:Open 

Number of Row:Single Row 

Place of Origin:Japan

Certification:ISO9001:2000 TS16949 

Noise Level:EMQ V1 Z2 EMQ V2 Z3 EMQ V3 Z4

Bearing material:Bearing steel (9Cr18) 

Tolerance level:ABEC-1 (P0) ABEC-3 (P6),ABEC-5

Internal elimination code:C0 C2 C3 C4 C5

Standard:SKF NSK TIMKEN NTN KOYO 

Bearings H.S Code:84821000 

NAV Series

ItemBasic sizeLoadSpeed limit
dDhCr DynamicCor StaticLubricating oil
mmNrpm
NAV400215321710800298004500
NAV400317351817000379004300
NAV400420422228150609003900
NAV400525472233800708003700
NAV400630552549900965003500
NAV4007356227476001228003100
NAV4008406828499001379002700
NAV4009457530525001525002600
NAV4010508030557001660002500
NAV4011559035685002258002300
NAV4012609535754002390002100
NAV40136510035795002569001900
NAV40147011040988003549001700
NAV401575115451018003729001600

Characteristics of Needle Roller Bearing

Cross-section is small, but very high load capacity, so it is suitable for radial bearing configuration space is limited. Needle roller bearings have a low sectional height and high load capacity.

General purpose needle type bearings to maintain a high speed bearing performance under its outstanding, needle roller shape by a special high rigidity and precision of the cage proper guidance, size error is very low.

Particularly suitable for use in a small space also because they have very high lubricant capacity, light weight and high stiffness characteristics, can in severe cases, use: such as high speed, shock load and other circumstances, the use of a wide range.

Applications

Widely used in automobiles, motorcycles, mopeds, electric tools, textile machinery, agricultural machinery, industrial sewing machines, construction machinery and other fields. 

 

Maintenance and lubrication 

Many bearings require periodic maintenance to prevent premature failure, although some such as fluid or magnetic bearings may require little maintenance.

Most bearings in high cycle operations need periodic lubrication and cleaning, and may require adjustment to minimise the effects of wear.

Bearing life is often much better when the bearing is kept clean and well-lubricated. 

One Way Clutch KOYO Needle Roller Bearing NAV4008



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