Home > Needle Roller Bearing >

K304030 304030Mm Radial Needle Roller Bearing And Cage Assemblies K304030

Product Categories

Shaanxi Fortune Industries Co.ltd

Trust Seal

Verified Supplier

Credit Check

Supplier Assessment

Contact Now

K304030 304030Mm Radial Needle Roller Bearing And Cage Assemblies K304030

Brand Name : SFT

Model Number : K30*40*30

Place of Origin : China

MOQ : negotiable

Price : negotiable

Payment Terms : L/C, T/T, Western Union, MoneyGram

Supply Ability : 50000PCS/MONTH

Delivery Time : 20-45DAYS

Packaging Details : carton,pallet

Lubrication : Grease Lubrication

Bore Size : 1 - 16 mm

type : Needle

Number of Row : single row or double row

Cage : Steel

Seals Type : Open or sealed

Contact Now

K304030 Bearing size 30*40*30 mm Radial Needle Roller and Cage Assemblies K30*40*30 Bearings

Introduction of Needle Bearing

Drawn cup needle roller bearings with open ends and with closed end are needle roller bearings with a very small radial section height. They comprise thin-walled, drawn cup outer rings and needle roller and cage assemblies which together form a complete unit.

These bearings allow the design of particularly compact and easy to fit bearing arrangements with high radial load carrying capacity. In order to support axial forces, they can also be combined with axial needle roller bearings AXW, series AXW, see dimension table,

The majority of the bearings are of a single row design and do not have a lubrication hole. Double row designs have a lubrication hole and the suffix ZW.

A needle roller bearing is a bearing which uses small cylindrical rollers.

They are used to reduce friction of a rotating surface.
Needle bearings have a large surface area that is in contact with the bearing outer surfaces compared to ball bearings. Additionally there is less added clearance (difference between the diameter of the shaft and the diameter of the bearing) so they are much more compact.

The typical structure consists of a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race (sometimes the housing itself).
Radial needle bearings are cylindrical and use rollers parallel to the axis of the shaft. Thrust needle bearings are flat and use a radial pattern of needles.
Full complement bearings have solid inner and outer rings and rib-guided cylindrical rollers. Since these bearings have the largest possible number of rolling elements, they have extremely high radial load carrying capacity and are suitable for particularly compact designs.

Application

Needle bearings are heavily used in automobile components such as rocker arm pivots, pumps, compressors, and transmissions. The drive shaft of a rear-wheel drive vehicle typically has at least eight needle bearings (four in each U joint) and often more if it is particularly long, or operates on steep slopes.
Additional clarification of needle roller: According to "Marks' Standard Handbook for Mechanical Engineers", a needle bearing is a roller bearing with rollers whose length are at least four times their diameter.

Needle roller bearing K series:

Model No(dDBmm)	Model No(dDBmm)
K30×35×17	K20×24×10
K30×37×17	K20×24×13
K30×40×30	K284025
K32×38×20	K20×26×12
K35×40×17	K20×26×20
K40×45×13	K20×28×20
K40×45×27	K22×26×17
K40×47×20	K24×28×10
K45×53×20	K24×28×13
K50×55×20	K24×30×17
K50×58×20	K25×29×17
K50×58×25	K25×30×17
K60×65×30	K25×32×16
K60×68×20	K25×33×24
K65×70×20	K25×35×30
K65×70×30	K28×33×13
K70×78×20	K28×33×17
K70×78×30	K28×33×27
K75×81×20	K08×11×10

K304030 30*40*30Mm Radial Needle Roller Bearing And Cage Assemblies K30*40*30

Product Tags: