INA NK 21/20 Bearing_INA NK 21/20 Size and Details

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INA NK 21/20 bearing

We introduce you to the INA NK 21/20 models bearing the relevant parameters, including the model, size, drawings and other models of the same size, if you have any do not understand or want to learn more parameters or would like to inquire about INA NK 21/20, please contact us: admin@tradebearings.com

INA NK 21/20 Bearing Details：

Bearing Name	NK 21/20
New Model	NK21/20
Old Model	bearing
product Model	NK21/20
Category	Needle Roller Bearing
Brand	INA Bearing
Inner Diameter d ( mm )	21
Outer Diameter D ( mm )	29
Thickness B ( mm )	20

INA NK 21/20 Bearing Bearing Size and Drawing：

INA NK 21/20 Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
INA NK21/20 Bearing	21	29	20	INA	Needle Roller Bearing
INA NK 21/20 Bearing	21	29	20	INA	Needle Roller Bearing
INA NK21/20 Bearing	21	29	20	INA	Needle Roller Bearing
IKO NK21/20 Bearing	21	29	20	IKO	Needle Roller Bearing
FAG NK21/20 Bearing	21	29	20	FAG	Needle Roller Bearing

We export high quantities INA NK 21/20 Bearing and relative products, we have huge stocks for INA NK 21/20 Bearing and relative items, we supply high quality INA NK 21/20 Bearing with reasonbable price or we produce the bearings along with the technical data or relative drawings, It's priority to us to supply best service to our clients. If you are interested in INA NK 21/20 Bearing,plz email us admin@tradebearings.com

What are the structural components and design advantages of needle roller bearings?

Needle roller bearings consist of slender needle rollers, a cage, and rings (or ringless bearings) typically with a thin-walled design. The needle rollers and raceways have a line contact design, offering advantages such as extremely small radial cross-section, high load capacity, good rigidity, and a low coefficient of friction. They are suitable for compact structures with limited radial space and the need to withstand high loads.

What are the advantages of needle roller bearings compared to other similar bearings?

Compared to cylindrical roller bearings, needle roller bearings have a significantly smaller radial cross-section, making them more suitable for space-constrained compact designs. Compared to deep groove ball bearings, they have a higher radial load capacity and offer greater shaft diameter design flexibility for the same outer diameter. Compared to sliding bearings, they have lower starting friction, higher running accuracy, and require no complex lubrication system.

What are the application scenarios and typical applications of needle roller bearings?

These bearings are suitable for mechanical applications with limited radial space, high load capacity, and compact structure requirements. Typical applications include automotive transmissions, engine connecting rods, universal joints, textile machinery, industrial robot joints, motorcycle engines, and aviation hydraulic pumps.

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