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NTN angular contact ball bearing · NTN QJ208
Angular contact ball bearing NTN QJ208

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Angular contact ball bearing NTN QJ208

Manufacturer Part Number
QJ208
Brand
NTNOfficial distributor
Category
Bearings
Subcategory
Angular contact ball bearings
Series
QJ

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Description

NTN QJ208 is a angular contact ball bearing reference, within Bearings. Request a quote for QJ208 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 bearing designed to support combined radial and axial loads in one direction. Its split outer ring allows the assembly to be mounted and dismounted more easily than a conventional angular contact bearing, which simplifies maintenance on equipment where access is limited. It is used in pumps, compressors, gearboxes and machine tools that demand precision and rigidity.

The QJ series designation is read directly: the letters identify the angular contact ball bearing type with a split outer ring, and the number that follows indicates the size. For example, QJ208, QJ209 and QJ210 correspond to different sizes in the same family. The higher the number, the larger the bore and load capacity. Any suffixes that may appear after the number indicate cage, internal clearance or heat treatment variants, and they should be respected when ordering the replacement.

In Argentine industry, these bearings appear in centrifugal pumps, screw compressors, gearboxes and machine tool spindles. They are also found in continuous process equipment, where the combination of axial and radial load requires an arrangement of two opposed bearings. Because they have a split outer ring, they make replacement easier in plants that cannot stop the line for long. MR Accesorios Industriales sells them throughout the country from Buenos Aires, Argentina.

To select the correct bearing, take into account the direction of the axial load, the internal clearance and the type of sealing or protection the equipment needs. During mounting, check the alignment of the housings and the tightening of the fastening elements. Lubrication must be the one specified by the equipment manufacturer, and it is advisable to check the condition of the split raceway before reusing it. Mounting with impacts or misalignment shortens the service life of the bearing.

Angular contact bearings are identified by their designation and standardized dimensions, so equivalents exist between brands for the same size. If the customer brings a part number from another brand or an unidentified part, at MR Accesorios Industriales we cross-reference it with the QJ series and indicate the compatible reference. Interchangeability depends on keeping the same clearance, cage and type of protection.

If you need a QJ series bearing, send the part number or the dimension on WhatsApp and we will quote you shortly. We can also advise you on the arrangement and mounting according to the equipment. We work with the NTN line and with the leading brands on the market so that you find the part your machine needs.

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

Dimensions

Eje o agujero
40 mm

Frequently Asked Questions

What does the QJ series mean on an NTN bearing?
The QJ series identifies angular contact ball bearings with a split outer ring. That construction allows the outer ring to be separated for easier mounting and dismounting. The number that follows indicates the size, for example QJ208 or QJ210.
How do I request a quote for a QJ bearing?
Write to us on WhatsApp with the complete part number, for example QJ211, or with the housing and shaft dimensions. With that information we will quote you shortly. If you have the part number from another brand, we can cross-reference it too.
Can two QJ bearings be combined on the same shaft?
Yes. They are mounted opposed to support axial loads in both directions. It is a common arrangement in pumps and gearboxes. Check the internal clearance and the alignment of the housings before tightening.
Request a quote on WhatsApp