Product page
Angular contact ball bearing SKF QJ 334 N2MA/C3
- Manufacturer Part Number
- QJ 334 N2MA/C3
- Brand
- SKFOfficial brand
- Category
- Bearings
- Subcategory
- Angular contact ball bearings
Other brands in this family
- FAG
- NTN
- TIMKEN
Ask us about alternatives. Equivalence is verified for each reference and application.
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Request your quote via WhatsApp or email, with the quantity and time frame you need.
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Description
SKF QJ 334 N2MA/C3 is a angular contact ball bearing reference, within Bearings. Request a quote for QJ 334 N2MA/C3 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
SKF QJ series angular contact bearings are four-point contact ball bearings. They are designed to withstand combined radial and axial loads in both directions, which makes them suitable for applications requiring high rigidity and precision. They are available in different cage and internal clearance variants, and are sold in Buenos Aires, Argentina, through MR Accesorios Industriales.
The QJ series designation is read in blocks. The letters QJ identify the four-point contact type. The number that follows indicates the size: for example, in QJ 212 N2MA/C3, the 12 corresponds to a 60 mm bore diameter. The suffixes N2MA refer to the machined brass cage and C3 to the internal radial clearance. In QJ 224 N2MA/C2, C2 indicates a tighter clearance than standard. Recognizing these codes allows ordering the exact replacement.
These bearings are used in industries in Argentina such as metallurgy, food, cement and mining. They appear in gearboxes, machine tool spindles, centrifugal pumps, industrial fans and transmission equipment where axial loads change direction. Also in applications that require high rotational precision and rigidity, such as milling heads or roller shafts. Their ability to withstand forces in both directions simplifies the support design.
To select the correct bearing, take into account the radial and axial load, the rotational speed and the environmental conditions. Seals or shields are not available in this series: if there is contamination, consider a bearing with seals. The C2, C3 or standard internal clearance is chosen according to the working temperature and the shaft fit. Lubrication can be grease or oil, and it is key to maintain alignment between shaft and housing to avoid parasitic forces.
Regarding equivalences, other manufacturers offer four-point contact bearings with their own designations. Interchangeability is not automatic: dimensions, load capacity, clearance and cage type must be compared. It is always advisable to verify the complete part number and tolerances before replacing one brand with another. At MR Accesorios Industriales we can guide you if you send us the measurements or the original part number.
If you need a SKF QJ series angular contact bearing, send us the complete part number via WhatsApp. We will quote you shortly and advise you on the variant that best suits your equipment. Write to us and we will reply instantly.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the suffix N2MA mean in a QJ bearing?
- The suffix N2MA indicates that the bearing has a machined brass cage, in two pieces, guided by the outer ring. This cage is suitable for high speeds and loads. It is important to respect the suffix when ordering the replacement to ensure the same performance.
- Can I replace a QJ bearing with one from another brand?
- Yes, but verify dimensions, load capacity, internal clearance and cage type. Interchangeability is not direct between brands. If you send us the original part number and measurements, we will help you find the right equivalence.
- What type of lubrication do you recommend for these bearings?
- It depends on speed and temperature. For general applications, lithium grease; for high speeds or elevated temperatures, oil. It is essential to follow the manufacturer's instructions and maintain adequate lubrication to extend service life.

