NA series

NA series needle roller bearings are compact, high-load radial bearings designed for space-constrained mechanical systems. Featuring precision needle rollers and high rigidity, they deliver reliable performance in automotive, industrial and automation equipment.

Classification :

Needle Roller Bearings

Keywords :

NA48 series needle roller bearings,NA49 series needle roller bearings,Machined ring needle roller bearings,Heavy duty needle roller bearings,Needle roller bearings with inner ring,High precision needle bearings,Caged needle roller bearings

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info@jnyjbearing.com

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🔥 Hot Selling Models & Dimensions

Model	Dimensions (mm)	Model	Dimensions (mm)	Model	Dimensions (mm)
NA4822	110×140×30	NA4822A	110×140×30	NA4824	120×150×30
NA4824A	120×150×30	NA4826A	130×165×35	NA4826	130×165×35
NA4828A	140×175×35	NA4828	140×175×35	NA4832A	160×200×40
KA4832A	170×215×45	NA4836A	180×225×45	NA4844A	220×270×50
NA4844A/YA4	220×270×50	NA4852A	260×320×60	NA4856A	280×350×69
NA4900A	10×22×13	NA4900A/YA	10×22×13	NA4900	10×22×13
NA4901A	12×24×13	NA4901	12×24×13	NA4902A	15×28×13
NA4902	15×28×13	NA4903A	17×30×13	NA4903	17×30×13
NA4903AS2	17×30×13	NA4904A	20×37×17	NA4904A/YA2	20×37×17
NA4904	20×37×17	NA49/22	22×39×17	NA4905A	25×42×17
NA4505	25×42×17	NA49/28	28×45×17	NA4906A	30×47×17
NA4906	30×47×17	NA49/32	32×52×20	NA4907A	35×55×20
NA4907	35×55×20	NA4908A	40×62×22	NA4908	40×62×22
NA4909A	45×68×22	NA44909	45×68×22	NA4910A	50×72×22
NA4910	50×72×22	NA4911A	55×80×25	NA4911	55×80×25
NA4912A	60×85×25	NA4912	60×85×25	NA4913A	65×90×25
NA4913	65×90×25	NA4914A	70×100×30	NA4914	70×100×30
NA4915A	75×105×30	NA4915	75×105×30	NA4916A	80×110×30
NA4916	80×110×30	NA4917A	85×120×35	NA4917	85×120×35
NA4918A	90×125×35	NA4918A/C9	90×125×35	-	-

✅ Key Features

High radial load capacity in compact installation space
Precision cage-guided needle rollers for smooth, low-friction operation
Machined inner/outer rings for enhanced rigidity and accuracy
Wide range of sizes and suffix modifications (A, AS2, /YA, /C9) for diverse applications
Interchangeable with international standard dimensions
Ideal for high-speed, heavy-load mechanical systems

🚜 Typical Applications

Automotive transmissions, gearboxes and differentials
Industrial machinery, pumps and compressors
Automation equipment and robotic systems
Printing, textile and packaging machinery
Heavy-duty engineering and construction equipment

Category Overview

Needle Roller Bearings feature long and thin rolling elements (needles) with a small diameter, providing an extremely high load-carrying capacity within a very small radial cross-section. This compact design makes them ideal for applications with limited installation space but requiring high rigidity and heavy load performance.Our full range includes drawn cup, solid collar, cage assemblies, and combined axial-radial types, widely used in automotive, gearboxes, engines, hydraulic components, and industrial machinery.

Our Series Breakdown

We provide a complete range of needle roller bearing series for compact and heavy-duty transmission systems:

Series & Type	Features	Typical Applications
Drawn Cup Needle Roller Bearings	Thin-walled outer ring, compact, economical, easy installation	Automotive parts, small gearboxes, power tools
Solid Collar Needle Roller Bearings	High rigidity, high precision, strong impact resistance	Heavy gearboxes, construction machinery, hydraulic pumps
Needle Roller & Cage Assemblies	Low friction, high speed, suitable for larger diameters	Engine parts, transmission components, industrial machinery
Combined Needle & Thrust Bearings	Support radial + axial loads simultaneously, space-saving	Clutches, pumps, compressors, lifting equipment
Heavy Duty Needle Roller Bearings	Extra load capacity, durable under shock loads	Mining machinery, agricultural equipment, reducers

Core Advantages

Extremely small radial sectional height, saves installation space
High load capacity with compact size
High rigidity and excellent anti-impact performance
Suitable for high-speed and oscillating motion
Multiple structures available for different assembly conditions

Typical Applications

Widely used in automotive transmissions, engines, gearboxes, hydraulic pumps, power tools, agricultural machinery, construction equipment, textile machinery, and small precision industrial mechanisms.

PRODUCT TESTING

Bearing Forging

Bearing Annealing

Turning Process

Quenching

Bearing Assembly

Bearing Clearance Testing

Grease injection

Bearing Marking

Needle Roller Bearings