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NSK angular contact ball bearing · NSK QJ 306
Angular contact ball bearing NSK QJ 306

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Angular contact ball bearing NSK QJ 306

Manufacturer Part Number
QJ 306
Brand
NSKBrand we market
Category
Bearings
Subcategory
Angular contact ball bearings
Series
QJ

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Ask us about alternatives. Equivalence is verified for each reference and application.

NSK

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Description

NSK QJ 306 is a angular contact ball bearing reference, within Bearings. Request a quote for QJ 306 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The QJ series angular contact ball bearing is a component designed to withstand combined radial and axial loads in a single direction. Its four-point contact design allows a single unit to replace combinations of bearings, simplifying assembly and reducing the space required. It is used in applications requiring high precision and rigidity, such as machine tool spindles, gearboxes and transmission equipment. MR Accesorios Industriales sells the NSK QJ series in Buenos Aires, Argentina, and advises you on selecting the correct part number for your application.

The QJ series designation is interpreted as follows: the letters QJ identify a four-point angular contact ball bearing, and the number that follows indicates the size, which correlates with the bore diameter. For example, QJ 206, QJ 207 and QJ 208 correspond to different sizes within the same series. Where suffixes appear, these may indicate variations in cage design, internal clearance or sealing, although for this particular series they are not specified in the available information. It is always advisable to verify the complete part number at the time of inquiry.

These bearings are used in industries such as metalworking, food, chemical and mining, in equipment such as pumps, compressors, fans, conveyor belts and machine tools. In Argentina, they are common in the automotive sector and in the process industry, where axial loads in both directions must be supported with a single bearing. Their ability to operate at moderate and high speeds makes them suitable for belt and gear drives.

To correctly select a QJ bearing, take into account the axial load it must withstand, the rotation speed and the environmental conditions. It is essential to ensure precise alignment between the shaft and the housing, since these bearings are sensitive to misalignment. Proper lubrication, whether with grease or oil, extends service life. If the environment contains dust or moisture, evaluate the need for additional seals. Assembly must be carried out with suitable tools to avoid damage to the raceways.

Regarding equivalents, NSK QJ series bearings can be interchanged with products from other brands that follow the same international nomenclature, such as SKF, FAG or NTN, provided the dimensions and load capacities match. However, it is important to verify tolerances and internal clearance, which may vary between manufacturers. If you have any doubts, ask us with the original part number and we will indicate the compatible alternative.

To request a quote for the QJ bearing you need, simply send us the complete part number via WhatsApp. At MR Accesorios Industriales we will quote it for you promptly. If you cannot find the exact reference, write to us with the model or dimensions and we will help you identify it. With more than 80 years of experience, since 1945, we are your reliable partner in bearings and power transmission in Buenos Aires, Argentina.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.

Dimensions

Eje o agujero
30 mm

Frequently Asked Questions

What does the QJ series mean in an NSK bearing?
The QJ series identifies four-point angular contact ball bearings. They are designed to withstand combined radial and axial loads in a single direction, and are used in applications requiring high precision and rigidity.
How do I choose the right QJ bearing for my machine?
Consider the axial and radial load, the operating speed and the environmental conditions. Verify that the dimensions match the shaft and housing. If you need help, contact us on WhatsApp with your equipment details and we will advise you.
Can I replace a QJ bearing from another brand with an NSK one?
Yes, provided the dimensions and load capacities match. Equivalent series from other brands can be interchanged, but verify tolerances and internal clearance. If you send us the original part number, we will indicate the NSK equivalent.
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