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NA4928 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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PRODUCT DETAILS

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

What are the common needle roller bearing failures?
Type of failure:

(1) bearing rotation is difficult and heating

(2) bearing operation has abnormal sound

(3) bearing vibration

(4) Inner seat ring spalling and cracking

(5) Outer seat ring spalling and cracking

(6) Bearing raceway and rolling body produce indentation

What are the disassembly methods of needle roller bearings?

1、Method of percussion

The knocking force is generally added to the inner ring of the bearing. The knocking force in the shielding room should not be added to the rolling body and retaining frame of the bearing. This method is simple and easy to use, but it can easily damage the bearing. The application of this method should pay attention to the placement of the pad should be appropriate, the point of emphasis should be correct.

2、Hot separation process

Used to remove tight fit bearings. First, the oil heated to about 100℃ is poured on the bearing to be removed with an oil can. After the bearing ring is heated and expanded, the bearing can be pulled out with a tension tool.

3、Push and press method

Press the bearing, stable and reliable work, no damage to the machine and bearing shielding machine room. The press has manual press, mechanical or hydraulic press press. Note: The pressure point of the press should be on the center of the shaft, and the pressure should not be biased.

4、Pull out method

Special tension, disassembly, as long as the rotation of the handle, the bearing will be slowly pulled out. When removing the outer ring of the bearing, the Angle of the two legs of the puller should be opened outward; When disassembling the bearing inner ring, the two feet of the puller should be inward and stuck on the end face of the bearing inner ring.

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