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Double Row Deep Groove Ball Bearings

Double row deep groove ball bearings are engineered to handle higher radial and axial loads compared to single row bearings. These bearings are ideal for applications requiring greater load capacity, such as gearboxes and heavy machinery. Their robust design ensures smooth operation and durability, even in the most demanding industrial environments.

Higher Load Capacity

Double row deep groove ball bearings have a greater width than single-row bearings with the same inner and outer diameters. Due to the greater number of rolling elements, double row deep groove ball bearings can withstand higher loads.

Generally speaking, double row deep groove ball bearings have a radial load capacity that is 1.6 times higher than that of single-row deep groove ball bearings. Therefore, double-row deep groove ball bearings can solve the issue of insufficient load capacity of single row deep groove ball bearings.

Support Bidirectional Axial Loads

In addition to radial loads, double row deep groove ball bearings can also withstand axial loads acting in two directions.

After the deep groove ball bearing is installed on the shaft, it is mainly used to withstand radial loads. When the radial clearance of the bearing is increased, it has the performance of an angular contact ball bearing. In this case, it can withstand a certain axial load.

Higher Level of Rigidity for Heavier Equipment

Double row deep groove ball bearings are stronger than single row in terms of ball design. Double row bearings have a larger contact area and a wider load distribution. The bearings are more stable under load and less prone to deformation.

Therefore, double row deep groove ball bearings can withstand higher loads and more complex stress conditions.

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FREQUENTLY ASKED QUESTIONS

What is the difference between a double-row deep groove ball bearing and a paired single-row deep groove ball bearing?

The design of single-row deep groove ball bearings is relatively simple, but the load-bearing capacity is relatively weak, and it is not suitable for bearing large radial loads.

Double-row deep groove ball bearings have deep grooves and rolling elements on both sides, and have higher load-bearing capacity. The double-row design makes the bearing more stable when bearing loads.

Generally speaking, single-row deep groove ball bearings are suitable for low-load, high-speed operation occasions, while double-row deep groove ball bearings are suitable for high-load, medium-to-low operation occasions.

Are there any allowable errors when installing double row deep groove ball bearings?

Yes. Generally speaking, the installation error of a deep groove ball bearing should be less than the tolerance range of the bearing itself. If it exceeds the allowable range, the load on the bearing is unevenly distributed, resulting in increased wear on the bearing.

Therefore, selecting the correct bearing size based on the equipment's installation space is crucial for extending the bearing's service life.

Do double row deep groove ball bearings support high speed applications?

Yes. The cage of high-speed deep groove ball bearings is usually guided by the inner ring or outer ring rib. Double row deep groove ball bearings have a low coefficient of friction, low vibration and noise.

Therefore, they have a high limiting speed and can maintain high precision. Double row deep groove ball bearings are a good choice when high load capacity and high speed are considered.

What is the difference between double-row deep groove ball bearings and double-row angular contact bearings?

Double-row deep groove ball bearings mainly bear radial loads. The line connecting the two force points of the ball is perpendicular to the axial direction.

Double-row angular contact bearings can withstand forces in both radial and axial directions simultaneously. There is a certain angle between the line connecting the two force points of the ball and the radial vertical line perpendicular to the axial direction.

The larger the contact angle, the greater the load-bearing capacity; the smaller the contact angle, the more conducive to high-speed rotation of the bearing.

How long will it take to ship after the payment?

We have sufficient inventory. Most orders will be shipped within 10 days or less. After the order is dispatched, you can track the logistics information at any time until the goods are signed for.