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NA4932 Needle Roller Bearing

Needle Roller Bearings (needle bearing) is a cylindrical roller with roller bearings, relative to its diameter, roller both thin and long. This is called needle roller. Despite having a smaller cross-section,has a higher load bearing capacity, equipped with a thin and long needle bearing roller (roller diameter D≤5mm,L / D≥2.5, L is the length of the roller), so radial structure is compact, its diameter size and load capacity and other types of bearings, minimum diameter, especially for radial dimensions limited support structure.

Classification :

Needle Roller Bearings

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Special Directions:

Bearing running clearance and inner-cutting roundness should be regulated according to different conditions. Machine tolls should be used for press-in fitting or thermal fitting when install the bearing. Limited by plastic cages(suffixed with TN) and sealing-element material ,operating temperature is -30℃--+100℃.
For general-disposition design of bearings,refer to the relevant recommendation in the applied technology of roller bearings.

Specification

Needle roller bearings are a bearing that is classified as either radial or thrust depending on the direction of the load being supported. Needle roller bearings include bearings whose rollers slightly exceed the size range of needle rollers as stipulated by ISO. Needle roller bearings include drawn cup and solid radial bearings, as well as application-specific cam followers, and roller followers. Thrust bearings include thrust needle bearings.Drawn cup needle roller bearings (with a cage and full complement of rollers) have a unique outer ring structure. They have the following features: the thinnest outer ring among rolling bearings, high load capacity, high maximum permissive load owing to the use of carefully selected special alloy steel plates, a surface-hardened cage with high resistance to wear, high limiting speed, and ease of mounting.

Type	d mm	D mm	H mm	Dynamic	Static	W/kg
NA4924	120	165	45	144	304	2.84
NA4926	130	180	50	161.6	364	3.9
NA4928	140	190	50	167.2	388	4.05
NA4930	150	210	60	208.8	488	6.38
NA4932	160	220	60	216	520	6.75
NA4934	170	230	60	223.2	552	7.11
NA4936	180	250	69	300	712	10.2
NA4938	190	260	69	312	756	10.7
NA4940	200	280	80	404	944	15.4
NA4944	220	300	80	420	1016	16.7

Specification
Product name	Needle Roller Bearings
Brand	WSRY or Customization
Material	GCr15; Chrome Steel; Stainless Steel
Precision grade	P0,P6,P5,P4,P2
Certification	ISO9001:2015
Application area	Military industry, automobile manufacturing, robotics, national defense, new energy, aerospace, home appliances, etc
Quality	100% Tested
Feature	High precision; High speed; Long service life
Package	OEM Customized

FACTORY WORKSHOP

Welcome to Shandong Ruihe Bearing Manufacturing Co., Ltd., your trusted partner for high-quality bearings. With over twenty years of experience in the industry, we are a leading bearing manufacturer with a strong reputation for excellence.

CUSTOMER VISIT

As a professional bearing manufacturer, we offer a wide range of bearing products to meet the diverse needs of our customers. Our products are designed and manufactured to the highest quality standards to ensure reliability and durability. Whether you are looking for standard bearings or custom solutions, we have the expertise and capabilities to meet your requirements.

APPLICATION AREAS

It is mainly used to support the rotating body, reduce friction during movement, and ensure the rotation accuracy of the machine. They are widely used in many fields, machinery manufacturing, automobile industry, electric power industry, aerospace industry, railway transportation. Such as train wheel bearings and train wheel bearings, etc., play an important role in the operation of trains.

PACKING AND SHIPPING

If you are looking for a reliable and professional bearing manufacturer with over twenty years of experience, look no further than Shandong Ruihe Bearing Manufacturing Co., Ltd. Contact us today to learn more about our products and services, and discover how we can help you meet your bearing needs with excellence and precision.

FAQ

"Looking for Reliable Suppliers? We've Got You Covered!"

Q: How is the product packaged?

A: Standard export seaworthy packing with waterproof paper inside and iron outside, secured by fumigated wooden pallets. It can effectively protect products from corrosion and various climate changes during Marine transportation.

Q: Is there quality inspection before loading?

A: Of course, all our products go through strict quality inspection before packing. Those that fail will be destroyed. Customers can also entrust a third party to inspect the products before loading.

Q: What are the loading ports?

A: In general, we ship the goods from Shanghai, Tianjin, Qingdao and Ningbo ports. You can designate other ports according to your needs.

Q:Can you deliver the goods on time?

A: Yes, we guarantee the best quality products and punctual delivery. Integrity is the tenet of our company.

Q: Can we take some samples? Any fees?

A: Yes, we can provide samples free of charge, but we don't pay for shipping. If you place an order after confirming the sample, we will refund your delivery fee or deduct it from the order amount.

Q: Can I visit your factory?

A: Of course. We welcome customers from all over the world to visit our factory.

Q: Are you a trading company or a manufacturer?

A: We are a professional bearing production company, but also a very professional bearing trading company