1.What is a ball bearing？
2.As a ntn ball bearing manufacturer,What is your payment method?
3.As a ntn ball bearing manufacturer,can you supply samples?
4.About ntn ball bearing,Will you check the products before shipment?
5.Do ntn ball bearing come in various tolerance classes?
6.How do ntn ball bearing contribute to the overall efficiency and energy savings in industrial machinery and transportation systems?
7.About ntn ball bearing,What about the lead time?
8.How do ntn ball bearing handle radial loads, axial loads, and combined loads, and what are their load-carrying capacities?
9.Are there specific ntn ball bearing designed for applications in the aerospace and aviation industries, and what standards do they adhere to?
10.As a ntn ball bearing manufacturer,Your product certifications?
11.How do manufacturers address concerns related to bearing noise and vibration in sensitive equipment?
12.Can ntn ball bearing be used in vacuum or cleanroom environments, and what measures are taken to prevent outgassing or contamination?

1.What is a ball bearing？

A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races.
The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e.g., a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were sliding against each other.
Ball bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races.
 

2.As a ntn ball bearing manufacturer,What is your payment method?

We accept T/T, PAYPAL or Western Union, credit card or via ALIBABA Assurance order.
 

3.As a ntn ball bearing manufacturer,can you supply samples?

Sure, samples can be provided free of charge, and the buyer pay the postage of the sample.
 

4.About ntn ball bearing,Will you check the products before shipment?

Yes, We have a professional QC team. Products will be strictly inspection before shipment.
 

5.Do ntn ball bearing come in various tolerance classes?

Bearing tolerances are standardized by classifying bearings into the following six classes (accuracy in tolerances becomes higher in the order described): 0, 6X, 6, 5, 4 and 2.
 

6.How do ntn ball bearing contribute to the overall efficiency and energy savings in industrial machinery and transportation systems?

The balls roll along the raceway, allowing for smooth rotation of the machinery or equipment. Ball bearings are used to support rotating, reduce friction and support radial and axial loads in high-load, high-speed applications where reliability and efficiency are critical.
 

7.About ntn ball bearing,What about the lead time?

3-7 days for samples, 3-4 weeks for mass production.
 

8.How do ntn ball bearing handle radial loads, axial loads, and combined loads, and what are their load-carrying capacities?

The type of bearing used also varies between these loads. While deep-groove ntn ball bearing are better equipped to handle radial loads, thrust ball bearings are designed for axial loads. However, it's essential to note that most bearings, such as angular contact ball bearings, can handle both radial and axial loads.The Bearing Static Capacity, Co, is the maximum load that can safely be applied to a non-rotating bearing that will not cause subsequent bearing operation to be impaired. It is based on calculated contact stress at the center of the most heavily loaded rolling element where it contacts the Inner Race.
 

9.Are there specific ntn ball bearing designed for applications in the aerospace and aviation industries, and what standards do they adhere to?

Airframe control ntn ball bearing are specialized bearings tailored for aircraft structures, particularly control systems and surfaces. Designed for low-speed oscillatory applications, they offer precision and support, effectively managing misalignments and flight-induced stresses.
Airframe Control bearings are lightweight, corrosion-resistant, grease-lubricated, and are sealed on most occasions. They come in precision grades for running accuracy.
 

10.As a ntn ball bearing manufacturer,Your product certifications?

ISO9001:2015 certificate,ISO 9001 Certification,CE-stator,etc.
 

11.How do manufacturers address concerns related to bearing noise and vibration in sensitive equipment?

From a ntn ball bearing manufacturing perspective, a low noise or vibration rating is achieved by paying attention to the surface finish of the raceways and balls, their roundness, and selecting the correct cage design. Finely filtered low noise greases can also be used to reduce vibrations.
 

12.Can ntn ball bearing be used in vacuum or cleanroom environments, and what measures are taken to prevent outgassing or contamination?

Bearings specify stainless steel for vacuum or cleanroom applications as stainless steels used for the rings, balls and retainer exhibit low outgassing. They usually supply open or shielded stainless steel bearings as vacuum bearings as these will outgas less than a nitrile rubber sealed bearing.